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.

Experimental evaluation of residual tensile strength of hybrid composite aerospace materials after low velocity impact (2019)
Journal Article
Damghani, M., Ersoy, N., Piorkowski, M., & Murphy, A. (2019). Experimental evaluation of residual tensile strength of hybrid composite aerospace materials after low velocity impact. Composites Part B: Engineering, 179, Article 107537. https://doi.org/10.1016/j.compositesb.2019.107537

© 2019 Elsevier Ltd Although much work has considered hybridised Carbon and Glass Fibre Reinforced Polymers to positively influence the performance of composite structures when subjected to transverse impact loading, there is limited understanding co... Read More about Experimental evaluation of residual tensile strength of hybrid composite aerospace materials after low velocity impact.

Fatigue behaviour of un-notched and open-hole quasi-isotropic pseudo-ductile thin-ply carbon/glass hybrid laminates (2019)
Presentation / Conference Contribution
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.

Achieving gradual failure in hybrid composite laminates- progressing from tension to beding (2019)
Presentation / Conference Contribution
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.

Investigation of the hybrid effect in high performance quasi-isotropic thin-ply carbon/glass composites under tension (2019)
Presentation / Conference Contribution
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 Contribution
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.

Investigation of transverse residual stresses in a thick pultruded composite using digital image correlation with hole drilling (2019)
Journal Article
Yuksel, O., Baran, I., Ersoy, N., & Akkerman, R. (2019). Investigation of transverse residual stresses in a thick pultruded composite using digital image correlation with hole drilling. Composite Structures, 223, 110954. https://doi.org/10.1016/j.compstruct.2019.110954

© 2019 Elsevier Ltd Process induced residual stresses are one of the main sources of defects such as (pre) mature matrix cracking during pultrusion of fiber reinforced polymer composite profiles. Recently, comprehensive process models have been devel... Read More about Investigation of transverse residual stresses in a thick pultruded composite using digital image correlation with hole drilling.

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.

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.

Damage mode identification in transverse crack tension specimens using acoustic emission and correlation with finite element progressive damage model (2018)
Journal Article
Oz, F. E., Ahmadvashaghbash, S., & Ersoy, N. (2019). Damage mode identification in transverse crack tension specimens using acoustic emission and correlation with finite element progressive damage model. Composites Part B: Engineering, 165, 84-95. https://doi.org/10.1016/j.compositesb.2018.11.104

© 2018 Elsevier Ltd In this study, damage progression in unidirectional composite specimens is investigated. Transverse Crack Tension specimens are used to stimulate damage in a predetermined progressive sequence. Acoustic Emission (AE) registration... Read More about Damage mode identification in transverse crack tension specimens using acoustic emission and correlation with finite element progressive damage model.

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 Contribution
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.

Quantifying the delamination of L-shaped composite laminates under low velocity impact using x-ray computed tomography (2018)
Presentation / Conference Contribution
Cinar, K., Guven, I., Fatih E., O., & Ersoy, N. (2018, September). Quantifying the delamination of L-shaped composite laminates under low velocity impact using x-ray computed tomography. Paper presented at 33rd Technical Conference of the American Society for Composites 2018, Seattle, Washington, USA

Low velocity impact response and failure behavior of L-shaped composite laminates were investigated. The composite laminates with variable thickness, stacking sequences, and corner radius were manufactured using autoclave manufacturing method. Tests... Read More about Quantifying the delamination of L-shaped composite laminates under low velocity impact using x-ray computed tomography.

Multi-instrument multi-scale experimental damage mechanics for fibre reinforced composites (2018)
Presentation / Conference Contribution
Lomov, S. V., Breite, C., Carrella-Payan, D., Carvelli, V., Ersoy, N., Gigliotti, M., …Gorbatikh, L. (2018). Multi-instrument multi-scale experimental damage mechanics for fibre reinforced composites. IOP Conference Series: Materials Science and Engineering, 406(1), 012057. https://doi.org/10.1088/1757-899X/406/1/012057

© Published under licence by IOP Publishing Ltd. Reliable investigation of damage in fibre reinforced composites requires concurrent in- and ex-situ application of multiple instruments at different scale: digital image correlation, acoustic emission... Read More about Multi-instrument multi-scale experimental damage mechanics for fibre reinforced composites.

Bearing and bearing-bypass of pseudo-ductile thin-ply carbon/ glass hybrids (2018)
Presentation / Conference Contribution
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 Contribution
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.