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Detection of barely visible impact damage in polymeric laminated composites using a biomimetic tactile whisker (2021)
Journal Article
Fotouhi, S., Khayatzadeh, S., Pui, W. X., Damghani, M., Bodaghi, M., & Fotouhi, M. (2021). Detection of barely visible impact damage in polymeric laminated composites using a biomimetic tactile whisker. Polymers, 13(20), Article 3587. https://doi.org/10.3390/polym13203587

This is a novel investigation on the possibility of detecting barely visible impact damage (BVID) in composite materials by whisking across the surface via tactile whisker sensors that resemble rats' whiskers. A series of drop tower low-velocity impa... Read More about Detection of barely visible impact damage in polymeric laminated composites using a biomimetic tactile whisker.

Automated extraction of 3D printed parts from unfused PA12 powder using a one-shot 3D printed compliant gripper (2021)
Journal Article
Cormack, J., Fotouhi, M., Adams, G., & Pipe, T. (2021). Automated extraction of 3D printed parts from unfused PA12 powder using a one-shot 3D printed compliant gripper. IEEE Robotics and Automation Letters, 6(4), 8655-8662. https://doi.org/10.1109/lra.2021.3113383

Automated individual part extraction from powder based 3D printers has the potential to save time and cost compared with fully manual part extraction, or part sorting following automated bulk separation of parts and unfused powder. This work details... Read More about Automated extraction of 3D printed parts from unfused PA12 powder using a one-shot 3D printed compliant gripper.

One-shot 3D printed underactuated gripper (2020)
Conference Proceeding
Cormack, J., Fotouhi, M., Adams, G., & Pipe, A. (2020). One-shot 3D printed underactuated gripper. In A. Mohammad, X. Dong, & M. Russo (Eds.), Towards Autonomous Robotic Systems (400-404). https://doi.org/10.1007/978-3-030-63486-5_41

Underactuated gripping mechanisms allow a wide range of objects to be grasped, with relatively simple control and input. Current 3D printed underactuated grippers are often composed of multiple parts that need assembly before use. Consolidating many... Read More about One-shot 3D printed underactuated gripper.

Achieving gradual failure in hybrid composite laminates- progressing from tension to beding (2019)
Presentation / Conference
Jalalvand, M., Idarraga, G., Fotouhi, M., Meza, J., & Wisnom, M. (2019, August). Achieving gradual failure in hybrid composite laminates- progressing from tension to beding. Presented at ICCM22, Melbourne, Australia

Most of the progress to-date about achieving gradual failure have been mainly focused on in-plane loading and particularly tension. In many real structural applications, the load is not pure in-plane and is a mix of in-plane and transverse. One of th... Read More about Achieving gradual failure in hybrid composite laminates- progressing from tension to beding.

Fatigue behaviour of un-notched and open-hole quasi-isotropic pseudo-ductile thin-ply carbon/glass hybrid laminates (2019)
Presentation / Conference
Fotouhi, M., Suwarta, P., Jenkin, R., Jalalvand, M., & Wisnom, M. (2019, August). Fatigue behaviour of un-notched and open-hole quasi-isotropic pseudo-ductile thin-ply carbon/glass hybrid laminates. Presented at ICCM22, Melbourne, Australia

This paper investigates fatigue behaviour of a QI composite made from thin carbon plies and standard thickness glass plies. As illustrated in Fig. 2, this orientation-dispersed QI thin-ply carbon/glass hybrid laminate showed a successful pseudo-ducti... Read More about Fatigue behaviour of un-notched and open-hole quasi-isotropic pseudo-ductile thin-ply carbon/glass hybrid laminates.

Investigation of the hybrid effect in high performance quasi-isotropic thin-ply carbon/glass composites under tension (2019)
Presentation / Conference
Idarraga, G., Fotouhi, M., Jalalvand, M., J, M., & Wisnom, M. (2019, August). Investigation of the hybrid effect in high performance quasi-isotropic thin-ply carbon/glass composites under tension. Presented at ICCM22, Melbourne, Australia

This work studies the hybrid effect in high performance Quasi-Isotropic (QI) composite plates under tensile loading. The hybrid effect is the enhancement in strain at failure of the carbon fibre layers in the hybrid composite compared with a pure car... Read More about Investigation of the hybrid effect in high performance quasi-isotropic thin-ply carbon/glass composites under tension.

Acoustic emission based investigation on the effect of temperature and hybridization on drop weight impact and post-impact residual strength of hemp and basalt fibres reinforced polymer composite laminates (2019)
Journal Article
Suresh Kumar, C., Fotouhi, M., Saeedifar, M., & Arumugam, V. (2019). Acoustic emission based investigation on the effect of temperature and hybridization on drop weight impact and post-impact residual strength of hemp and basalt fibres reinforced polymer composite laminates. Composites Part B: Engineering, 173, Article 106962. https://doi.org/10.1016/j.compositesb.2019.106962

© 2019 Elsevier Ltd This paper investigates the effect of temperature and hybridization on the impact damage evolution and post-impact residual strength of hemp/epoxy, basalt/epoxy and their hybrid laminates, using mechanical and acoustic emission (A... Read More about Acoustic emission based investigation on the effect of temperature and hybridization on drop weight impact and post-impact residual strength of hemp and basalt fibres reinforced polymer composite laminates.

Polyether sulfone interleaved glass/carbon hybrid composite under impact loading (2019)
Presentation / Conference
Fotouhi, S., Clamp, J., Bolouri, A., & Fotouhi, M. (2019, May). Polyether sulfone interleaved glass/carbon hybrid composite under impact loading. Poster presented at Comptest2019, Lulea, Sweden

This work presents an attempt to improve the low velocity impact performance of Carbon/Glass hybrid composites by interleaving with tough polyether sulfone (PES) membranes. The hybrid composite was made of a glass/epoxy block that was sandwiched betw... Read More about Polyether sulfone interleaved glass/carbon hybrid composite under impact loading.

Fatigue behaviour of pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites (2019)
Journal Article
Suwarta, P., Fotouhi, M., Czél, G., Longana, M., & Wisnom, M. R. (2019). Fatigue behaviour of pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites. Composite Structures, 224, 110996. https://doi.org/10.1016/j.compstruct.2019.110996

© 2019 The Authors This paper is the first detailed investigation of the fatigue behavior of pseudo-ductile unidirectional (UD)thin-ply interlayer hybrids made of thin-ply carbon/epoxy plies sandwiched between standard thickness glass/epoxy plies und... Read More about Fatigue behaviour of pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites.

4D printing self-morphing structures (2019)
Journal Article
Bodaghi, M., Noroozi, R., Zolfagharian, A., Fotouhi, M., & Norouzi, S. (2019). 4D printing self-morphing structures. Materials, 12(8), https://doi.org/10.3390/ma12081353

© 2019 by the authors. Themain objective of thispaper is to introduce complex structureswith self-bending/morphing/ rolling features fabricated by 4D printing technology, and replicate their thermo-mechanical behaviors using a simple computational to... Read More about 4D printing self-morphing structures.

The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites (2019)
Journal Article
Fotouhi, M., Fuller, J., Longana, M., Jalalvand, M., & Wisnom, M. R. (2019). The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites. Composite Structures, 215, 365-376. https://doi.org/10.1016/j.compstruct.2019.02.068

In this study the effect of strain rate in tension on two different types of thin-ply pseudo-ductile laminates is reported. These comprised Unidirectional (UD) and quasi-isotropic (QI) hybrids made from low strain thin-ply carbon/epoxy and high strai... Read More about The high strain rate tension behaviour of pseudo-ductile high performance thin ply composites.

Damage characterization of nano-interleaved CFRP under static and fatigue loading (2019)
Journal Article
Fotouhi, M., Fragassa, C., Fotouhi, S., Saghafi, H., & Minak, G. (2019). Damage characterization of nano-interleaved CFRP under static and fatigue loading. Fibers, 7(2), 13. https://doi.org/10.3390/fib7020013

© 2019 by the authors. The use of high strength-to-weight ratio-laminated fiber-reinforced composites is emerging in engineering sectors such as aerospace, marine and automotive to improve productivity. Nevertheless, delamination between the layers i... Read More about Damage characterization of nano-interleaved CFRP under static and fatigue loading.

Size-dependent nonlinear secondary resonance of micro-/nano-beams made of nano-porous biomaterials including truncated cube cells (2018)
Journal Article
Sahmani, S., Fotouhi, M., & Aghdam, M. M. (2019). Size-dependent nonlinear secondary resonance of micro-/nano-beams made of nano-porous biomaterials including truncated cube cells. Acta Mechanica, 230(3), 1077-1103. https://doi.org/10.1007/s00707-018-2334-9

© 2018, Springer-Verlag GmbH Austria, part of Springer Nature. Porous biomaterials have been utilized in cellular structures in order to mimic the function of bone as a branch of tissue engineering approach. With the aid of nano-porous biomaterials i... Read More about Size-dependent nonlinear secondary resonance of micro-/nano-beams made of nano-porous biomaterials including truncated cube cells.

Improvement of the impact properties of composite laminates by means of nano-modification of the matrix-A review (2018)
Journal Article
Saghafi, H., Fotouhi, M., & Minak, G. (2018). Improvement of the impact properties of composite laminates by means of nano-modification of the matrix-A review. Applied Sciences, 8(12), 2406. https://doi.org/10.3390/app8122406

© 2017 by the authors. This paper reviews recent works on the application of nanofibers and nanoparticle reinforcements to enhance the interlaminar fracture toughness, to reduce the impact induced damage and to improve the compression after impact pe... Read More about Improvement of the impact properties of composite laminates by means of nano-modification of the matrix-A review.

Investigating the pre-damaged PZT sensors under impact traction (2018)
Journal Article
Fotouhi, S., Fotouhi, M., Pavlovic, A., & Djordjevic, N. (2018). Investigating the pre-damaged PZT sensors under impact traction. Journal of Marine Science and Engineering, 6(4), 142. https://doi.org/10.3390/jmse6040142

© 2018 by the authors. Ships are usually under vibration, impact, and other kinds of static and dynamic loads. These loads arise from water flow across the hull or surfaces, the propeller cavitation, and so on. For optimal design purposes and reliabl... Read More about Investigating the pre-damaged PZT sensors under impact traction.

Pseudo-ductility of unidirectional thin ply hybrid composites in longitudinal compression (2018)
Presentation / Conference
Suwarta, P., Czel, G., Fotouhi, M., Rycerz, J., & Wisnom, M. (2018, September). Pseudo-ductility of unidirectional thin ply hybrid composites in longitudinal compression. Presented at ASC 33rd Annual Technical Conference, Seattle, USA

The compression response of unidirectional thin-ply carbon (C) standard thickness S-glass (SG) hybrid composites is presented. Gradual failure up to high strain has been demonstrated for [SG1/(C1/SG1)17] and [SG1/(C2/SG1)17] hybrid configurations. T... Read More about Pseudo-ductility of unidirectional thin ply hybrid composites in longitudinal compression.

Bearing and bearing-bypass of pseudo-ductile thin-ply carbon/ glass hybrids (2018)
Presentation / Conference
Fotouhi, M., Jalalvand, M., Wu, X., & Wisnom, M. (2018, September). Bearing and bearing-bypass of pseudo-ductile thin-ply carbon/ glass hybrids. Presented at ICCS21, Bologna, Italy

The aim of this work was to investigate the bearing and bearing-bypass behaviour of thin ply pseudo-ductile carbon/glass hybrid laminates in tension. Therefore, a series of tests were performed based on ASTM D7248/D7248M–12 on a Quasi Isotropic (QI)... Read More about Bearing and bearing-bypass of pseudo-ductile thin-ply carbon/ glass hybrids.

Compact tension test behaviour of Pseudo-ductile thin-ply carbon/ glass hybrids (2018)
Presentation / Conference
Fotouhi, M., Jalalvand, M., Xu, X., & Wisnom, M. (2018, September). Compact tension test behaviour of Pseudo-ductile thin-ply carbon/ glass hybrids. Presented at ICCS21, Bologna, Italy

The aim of this work was to investigate the notched behaviour of thin ply pseudo-ductile carbon/glass hybrid laminates with in-plane Over-height Compact Tension (OCT) specimens. Therefore, a series of tests were performed on two different thin-ply ca... Read More about Compact tension test behaviour of Pseudo-ductile thin-ply carbon/ glass hybrids.

Notch insensitive orientation-dispersed pseudo-ductile thin-ply carbon/glass hybrid laminates (2018)
Journal Article
Fotouhi, M., Jalalvand, M., & Wisnom, M. R. (2018). Notch insensitive orientation-dispersed pseudo-ductile thin-ply carbon/glass hybrid laminates. Composites Part A: Applied Science and Manufacturing, 110, 29-44. https://doi.org/10.1016/j.compositesa.2018.04.012

© 2018 Notch sensitivity, free edge delamination and brittle failure are limiting factors for the wider use of conventional composite laminates. In our previous study, a hybrid layup concept with the different materials blocked together but with disp... Read More about Notch insensitive orientation-dispersed pseudo-ductile thin-ply carbon/glass hybrid laminates.

The study of buckling and post-buckling behavior of laminated composites consisting multiple delaminations using acoustic emission (2018)
Journal Article
Sobhani, A., Saeedifar, M., Najafabadi, M. A., Fotouhi, M., & Zarouchas, D. (2018). The study of buckling and post-buckling behavior of laminated composites consisting multiple delaminations using acoustic emission. Thin-Walled Structures, 127, 145-156. https://doi.org/10.1016/j.tws.2018.02.011

© 2018 Elsevier Ltd This study introduces a comprehensive set of designed and tested glass/epoxy composites, AE monitoring and signal processing techniques; (i) to investigate the effect of multiple delaminations on buckling and post-buckling behavio... Read More about The study of buckling and post-buckling behavior of laminated composites consisting multiple delaminations using acoustic emission.

Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves (2018)
Journal Article
Sadeghi, S., Zarif Karimi, N., Fotouhi, M., Hasani, M., Najafabadi, M. A., & Pavlovic, A. (2018). Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves. FME Transactions, 46(2), 230-237. https://doi.org/10.5937/fmet1802230S

© Faculty of Mechanical Engineering, Belgrade. The residual stress assessment in structures is essential for optimization of the structures' design. The attention of this paper is focused on how acoustic emission signals caused by tensile loading of... Read More about Residual stress evaluation in friction stir welding of aluminum plates by means of acoustic emission and ultrasonic waves.

Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading (2018)
Journal Article
Fotouhi, M., Suwarta, P., Jalalvand, M., Czél, G., & Wisnom, R. M. (2018). Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading. FME Transactions, 46(2), 238-244. https://doi.org/10.5937/fmet1802238F

© Faculty of Mechanical Engineering, Belgrade. This paper investigates the applicability of the acoustic emission (AE) technique for identification of the damage onset and accumulation in SGlass/ TR30-Carbon hybrid laminates under repeated quasi-stat... Read More about Acoustic emission monitoring of thin ply hybrid composites under repeated quasi-static tensile loading.

Experimental–numerical study on minimizing impact induced damage in laminated composites under low-velocity impact (2017)
Journal Article
Pashmforoush, F., Fotouhi, M., & Sarhan, A. A. D. (2018). Experimental–numerical study on minimizing impact induced damage in laminated composites under low-velocity impact. Journal of Reinforced Plastics and Composites, 37(3), 155-165. https://doi.org/10.1177/0731684417737166

© 2017, © The Author(s) 2017. In this study, an experimentally validated numerical analysis was performed toward optimization of stacking sequence in multidirectional laminated composites subjected to low-velocity impact. For this purpose, an optimiz... Read More about Experimental–numerical study on minimizing impact induced damage in laminated composites under low-velocity impact.

Acoustic Emission-Based Methodology to Evaluate Delamination Crack Growth Under Quasi-static and Fatigue Loading Conditions (2017)
Journal Article
Saeedifar, M., Ahmadi Najafabadi, M., Mohammadi, K., Fotouhi, M., Hosseini Toudeshky, H., & Mohammadi, R. (2018). Acoustic Emission-Based Methodology to Evaluate Delamination Crack Growth Under Quasi-static and Fatigue Loading Conditions. Journal of Nondestructive Evaluation, 37(1), https://doi.org/10.1007/s10921-017-0454-0

© 2017, The Author(s). The aim of this study was to investigate the applicability of acoustic emission (AE) technique to evaluate delamination crack in glass/epoxy composite laminates under quasi-static and fatigue loading. To this aim, double cantil... Read More about Acoustic Emission-Based Methodology to Evaluate Delamination Crack Growth Under Quasi-static and Fatigue Loading Conditions.

Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites (2017)
Journal Article
Czél, G., Rev, T., Jalalvand, M., Fotouhi, M., Longana, M. L., Nixon-Pearson, O. J., & Wisnom, M. R. (2018). Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites. Composites Part A: Applied Science and Manufacturing, 104, 151-164. https://doi.org/10.1016/j.compositesa.2017.10.028

© 2017 The Author(s) Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confir... Read More about Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites.

Orientation-dispersed pseudo-ductile hybrid composite laminates – A new lay-up concept to avoid free-edge delamination (2017)
Journal Article
Jalalvand, M., Fotouhi, M., & Wisnom, M. R. (2017). Orientation-dispersed pseudo-ductile hybrid composite laminates – A new lay-up concept to avoid free-edge delamination. Composites Science and Technology, 153, 232-240. https://doi.org/10.1016/j.compscitech.2017.10.011

Multi-Directional hybrid composites can suffer from free-edge delamination, a damage mode that doesn't exist in Uni-Directional hybrid composites and can hinder the pseudo-ductility that can be achieved with thin-ply hybrids. This paper presents a ne... Read More about Orientation-dispersed pseudo-ductile hybrid composite laminates – A new lay-up concept to avoid free-edge delamination.

High performance quasi-isotropic thin-ply carbon/glass hybrid composites with pseudo-ductile behaviour in all fibre orientations (2017)
Journal Article
Wisnom, M. R., Fotouhi, M., & Jalalvand, M. (2017). High performance quasi-isotropic thin-ply carbon/glass hybrid composites with pseudo-ductile behaviour in all fibre orientations. Composites Science and Technology, 152, 101-110. https://doi.org/10.1016/j.compscitech.2017.08.024

© 2017 This study exploits the potential of thin-ply carbon/glass hybrid laminates to generate high performance Quasi-Isotropic (QI) composite plates that show pseudo-ductility in all fibre orientations under tensile loading, overcoming the inherent... Read More about High performance quasi-isotropic thin-ply carbon/glass hybrid composites with pseudo-ductile behaviour in all fibre orientations.

Experimental analysis of GFRP laminates subjected to compression after drilling (2017)
Journal Article
Zarif Karimi, N., Heidary, H., Fotouhi, M., & Minak, G. (2017). Experimental analysis of GFRP laminates subjected to compression after drilling. Composite Structures, 169, 144-152. https://doi.org/10.1016/j.compstruct.2017.01.017

© 2017 Elsevier Ltd This paper presents an experimental study of drilling-induced delamination on the compressive properties of woven glass fiber-reinforced epoxy composites. In the drilling of laminated composites, interlaminar cracking or delaminat... Read More about Experimental analysis of GFRP laminates subjected to compression after drilling.

Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines (2016)
Journal Article
Fotouhi, M., Saghafi, H., Brugo, T., Minak, G., Fragassa, C., Zucchelli, A., & Ahmadi, M. (2017). Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 231(1), 31-43. https://doi.org/10.1177/0954406216650711

© 2016 Institution of Mechanical Engineers. The use of light composites when designing fast moving parts for machine tools is emerging as a very efficient solution for improving productivity. Nevertheless, several aspects of these materials have to b... Read More about Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines.

Detection of fibre fracture and ply fragmentation in thin-ply UD carbon/glass hybrid laminates using acoustic emission (2016)
Journal Article
Fotouhi, M., Suwarta, P., Jalalvand, M., Czel, G., & Wisnom, M. R. (2016). Detection of fibre fracture and ply fragmentation in thin-ply UD carbon/glass hybrid laminates using acoustic emission. Composites Part A: Applied Science and Manufacturing, 86, 66-76. https://doi.org/10.1016/j.compositesa.2016.04.003

© 2016 The Authors. This paper investigates the link between acoustic emission (AE) events and the corresponding damage modes in thin-ply UD carbon/glass hybrid laminates under tensile loading. A novel configuration was investigated which has not pre... Read More about Detection of fibre fracture and ply fragmentation in thin-ply UD carbon/glass hybrid laminates using acoustic emission.

Investigation of push-out delamination using cohesive zone modelling and acoustic emission technique (2015)
Journal Article
Saeedifar, M., Fotouhi, M., & Ahmadi Najafabadi, M. (2016). Investigation of push-out delamination using cohesive zone modelling and acoustic emission technique. Journal of Composite Materials, 50(25), 3577-3588. https://doi.org/10.1177/0021998315622983

© The Author(s) 2015. Push-out delamination is a serious concern in the drilling of fibre-reinforced composite materials. This damage occurs as the drill reaches the exit side of the material and can reduce the strength and stiffness of the structure... Read More about Investigation of push-out delamination using cohesive zone modelling and acoustic emission technique.

Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission (2015)
Journal Article
Saeedifar, M., Fotouhi, M., Ahmadi Najafabadi, M., Hosseini Toudeshky, H., & Minak, G. (2016). Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission. Composites Part B: Engineering, 85, 113-122. https://doi.org/10.1016/j.compositesb.2015.09.037

© 2015 Elsevier Ltd. All rights reserved. The main objective of this study is to determine the crack tip position during propagation of mode I delamination and also to evaluate interlaminar fracture toughness (GIC) in glass/epoxy composite specimens.... Read More about Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission.

Analysis of the damage mechanisms in mixed-mode delamination of laminated composites using acoustic emission data clustering (2015)
Journal Article
Fotouhi, M., Sadeghi, S., Jalalvand, M., & Ahmadi, M. (2017). Analysis of the damage mechanisms in mixed-mode delamination of laminated composites using acoustic emission data clustering. Journal of Thermoplastic Composite Materials, 30(3), 318-340. https://doi.org/10.1177/0892705715598362

© The Author(s) 2015. In this study, acoustic emission (AE) technique is used to investigate different time-to-failure mechanisms of delamination in glass/epoxy composite laminates. Woven and unidirectional layups were subjected to the double cantile... Read More about Analysis of the damage mechanisms in mixed-mode delamination of laminated composites using acoustic emission data clustering.

Damage evaluation of composite materials using acoustic emission features and Hilbert transform (2015)
Journal Article
Nazmdar Shahri, M., Yousefi, J., Fotouhi, M., & Ahmadi Najfabadi, M. (2016). Damage evaluation of composite materials using acoustic emission features and Hilbert transform. Journal of Composite Materials, 50(14), 1897-1907. https://doi.org/10.1177/0021998315597555

© SAGE Publications. Acoustic emission (AE) has good potential to characterize failure mechanisms in laminated composite materials. One of the difficult issues using this method can be to establish a good correlation between occurred failure mechanis... Read More about Damage evaluation of composite materials using acoustic emission features and Hilbert transform.

Prediction of delamination growth in laminated composites using acoustic emission and Cohesive Zone Modeling techniques (2015)
Journal Article
Saeedifar, M., Fotouhi, M., Ahmadi Najafabadi, M., & Hosseini Toudeshky, H. (2015). Prediction of delamination growth in laminated composites using acoustic emission and Cohesive Zone Modeling techniques. Composite Structures, 124, 120-127. https://doi.org/10.1016/j.compstruct.2015.01.003

© 2015 Elsevier Ltd. Mode I delamination is the most common failure mode in laminated composite materials. Determination of the crack growth has a vital role in the damage tolerance analyses of the structures which suffer from this type of damage. Th... Read More about Prediction of delamination growth in laminated composites using acoustic emission and Cohesive Zone Modeling techniques.

Investigation of the damage mechanisms for mode I delamination growth in foam core sandwich composites using acoustic emission (2015)
Journal Article
Fotouhi, M., Saeedifar, M., Sadeghi, S., Ahmadi Najafabadi, M., & Minak, G. (2015). Investigation of the damage mechanisms for mode I delamination growth in foam core sandwich composites using acoustic emission. Structural Health Monitoring, 14(3), 265-280. https://doi.org/10.1177/1475921714568403

© The Author(s) 2015 In this article, acoustic emission monitoring was used to identify different types of damage mechanisms which occur during delamination of sandwich structures. Features of the obtained acoustic emission signals and wavelet-based... Read More about Investigation of the damage mechanisms for mode I delamination growth in foam core sandwich composites using acoustic emission.

Prediction of delamination growth in carbon/epoxy composites using a novel acoustic emission-based approach (2015)
Journal Article
Mohammadi, R., Saeedifar, M., Toudeshky, H. H., Najafabadi, M. A., & Fotouhi, M. (2015). Prediction of delamination growth in carbon/epoxy composites using a novel acoustic emission-based approach. Journal of Reinforced Plastics and Composites, 34(11), 868-878. https://doi.org/10.1177/0731684415583166

© The Author(s) 2015 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav. Delamination is the most common failure mode in laminated composites and it leads to loss of structural strength and stiffness. In this paper, acoustic emission mon... Read More about Prediction of delamination growth in carbon/epoxy composites using a novel acoustic emission-based approach.

Interlaminar Fracture Toughness Evaluation in Glass/Epoxy Composites Using Acoustic Emission and Finite Element Methods (2014)
Journal Article
Saeedifar, M., Fotouhi, M., Najafabadi, M. A., & Toudeshky, H. H. (2015). Interlaminar Fracture Toughness Evaluation in Glass/Epoxy Composites Using Acoustic Emission and Finite Element Methods. Journal of Materials Engineering and Performance, 24(1), 373-384. https://doi.org/10.1007/s11665-014-1291-2

© 2014, ASM International. Delamination is one of the most common modes of failure in laminated composites and it leads to the loss of structural strength and stiffness. In this paper, mode I, mode II, and mixed of these pure modes were investigated... Read More about Interlaminar Fracture Toughness Evaluation in Glass/Epoxy Composites Using Acoustic Emission and Finite Element Methods.

Acoustic emission-based study to characterize the initiation of delamination in composite materials (2014)
Journal Article
Fotouhi, M., & Najafabadi, M. A. (2016). Acoustic emission-based study to characterize the initiation of delamination in composite materials. Journal of Thermoplastic Composite Materials, 29(4), 519-537. https://doi.org/10.1177/0892705713519811

© The Author(s) 2014. Among the failure modes of composite materials, delamination is the most striking one. It may result in the reduction of stiffness and long-term performance of composite materials. The initiation stage is very crucial in delamin... Read More about Acoustic emission-based study to characterize the initiation of delamination in composite materials.

Damage Classification of Sandwich Composites Using Acoustic Emission Technique and k-means Genetic Algorithm (2014)
Journal Article
Pashmforoush, F., Khamedi, R., Fotouhi, M., Hajikhani, M., & Ahmadi, M. (2014). Damage Classification of Sandwich Composites Using Acoustic Emission Technique and k-means Genetic Algorithm. Journal of Nondestructive Evaluation, 33(4), 481-492. https://doi.org/10.1007/s10921-014-0243-y

© 2014, Springer Science+Business Media New York. In this study acoustic emission (AE) technique was used for monitoring mode I delamination test of sandwich composites. Since, during mode I delamination test various damage mechanisms appear, their c... Read More about Damage Classification of Sandwich Composites Using Acoustic Emission Technique and k-means Genetic Algorithm.

Investigation of the mixed-mode delamination in polymer-matrix composites using acoustic emission technique (2014)
Journal Article
Fotouhi, M., & Ahmadi Najafabadi, M. (2014). Investigation of the mixed-mode delamination in polymer-matrix composites using acoustic emission technique. Journal of Reinforced Plastics and Composites, 33(19), 1767-1782. https://doi.org/10.1177/0731684414544391

© The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav. This paper is a novel application of acoustic emission (AE) technique to investigate the actual occurring modes of delamination damage (i.e. mode I, mode II and the... Read More about Investigation of the mixed-mode delamination in polymer-matrix composites using acoustic emission technique.

Bearing failure of pseudo-ductile thin ply angle-ply laminates
Presentation / Conference
Wu, X., Fuller, J., Fotouhi, M., & Wisnom, M. Bearing failure of pseudo-ductile thin ply angle-ply laminates. Presented at 18 European Conference on Composite Materials -ECCM 18

The aim of this work is to investigate the bearing failure of mechanically fastened joints between thin-ply angle-ply laminates with central 0° plies. To achieve this, pseudo-ductile laminates with two different layups [±6/0]s2 and [±2/0]s4 were... Read More about Bearing failure of pseudo-ductile thin ply angle-ply laminates.

Reduced tensile notch-sensitivity in pseudo-ductile thin ply composites
Presentation / Conference
Wisnom, M., Czél, G., Fotouhi, M., Fuller, J., Jalalvand, M., Rev, T., & Wu, X. Reduced tensile notch-sensitivity in pseudo-ductile thin ply composites. Presented at 18 European Conference on Composite Materials -ECCM 18

Pseudo-ductile thin-ply composites loaded in tension exhibit a non-linear stress-strain response with a plateau, analogous to yielding in a metal. This provides an alternative means for load redistribution at stress concentrations, giving reduced not... Read More about Reduced tensile notch-sensitivity in pseudo-ductile thin ply composites.

Thin ply carbon/glass hybrid laminates to activate new damage mechanisms under indentation
Presentation / Conference
Fotouhi, M., Jalalvand, M., Prato, A., & Wisnom, M. Thin ply carbon/glass hybrid laminates to activate new damage mechanisms under indentation. Presented at 18 European Conference on Composite Materials -ECCM 18

Low velocity impacts on composite laminates can cause a significant amount of delamination that is often referred to as barely visible impact damage (BVID). This damage can cause significant degradation of structural properties, especially the compre... Read More about Thin ply carbon/glass hybrid laminates to activate new damage mechanisms under indentation.

Self-warning hybrid composite patches for repairing cracked aluminium panels
Presentation / Conference
Jalalvand, M., Wu, H. W. M. L., Sheibanian, F., Fotouhi, M., & Wisnom, M. Self-warning hybrid composite patches for repairing cracked aluminium panels. Presented at 18 European Conference on Composite Materials -ECCM 18, Athens, Greece

In this paper, a new concept for health-moninoring of bonded patch repairs is presented. Aerospace structures using aluminium panels occasionally crack and bonded composite patches are one of the repair methods available to maintain the integrity of... Read More about Self-warning hybrid composite patches for repairing cracked aluminium panels.

Development and evaluation of a novel piezoelectric PVDF sensor as a load spectrum counter
Presentation / Conference
De, M., Pozegic, T., Hamerton, I., & Fotouhi, M. Development and evaluation of a novel piezoelectric PVDF sensor as a load spectrum counter. Presented at 18 European Conference on Composite Materials -ECCM 18

Engineering structures, such as aircraft, marine vessels, buildings and offshore platforms, are subjected to a range of uncertain dynamic loadings, due to changes in operational and environmental conditions, etc. Unfortunately, the load spectrum of t... Read More about Development and evaluation of a novel piezoelectric PVDF sensor as a load spectrum counter.