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Exploring adaptive behavior of non-linear hexagonal frameworks (2020)
Journal Article
O'Donnell, M. P., Towes, M., Groh, R. M. J., & Chenchiah, I. V. (2020). Exploring adaptive behavior of non-linear hexagonal frameworks. Frontiers in Materials, 7, 64. https://doi.org/10.3389/fmats.2020.00064

© Copyright © 2020 O'Donnell, Towes, Groh and Chenchiah. Non-linear structural responses offer a rich design space that can be integrated into the development of novel (meta)-materials to enable transformative capabilities. By exploiting robust, repe... Read More about Exploring adaptive behavior of non-linear hexagonal frameworks.

Reconsidering laminate nonsymmetry (2020)
Journal Article
O’Donnell, M. P., & Weaver, P. M. (2020). Reconsidering laminate nonsymmetry. AIAA Journal, 58(4), 1811-1820. https://doi.org/10.2514/1.J058751

Nonsymmetric laminates are commonly precluded from composite design due to perceptions of reduced performance arising from in- and out-of-plane coupling. This coupling introduces warpage during cure—leading to raised stresses, together with diminishe... Read More about Reconsidering laminate nonsymmetry.

Bespoke extensional elasticity through helical lattice systems (2019)
Journal Article
Dixon, M. D. X., O'Donnell, M. P., Pirrera, A., & Chenchiah, I. V. (2019). Bespoke extensional elasticity through helical lattice systems. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 475(2232), https://doi.org/10.1098/rspa.2019.0547

© 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. Nonlinea... Read More about Bespoke extensional elasticity through helical lattice systems.

Multiscale tailoring of helical lattice systems for bespoke thermoelasticity (2019)
Journal Article
O’Donnell, M. P., Stacey, J. P., Chenchiah, I. V., & Pirrera, A. (2019). Multiscale tailoring of helical lattice systems for bespoke thermoelasticity. Journal of the Mechanics and Physics of Solids, 133, 103704. https://doi.org/10.1016/j.jmps.2019.103704

© 2019 (Meta-)Materials, e.g. functional or architectured materials that change shape in response to external stimuli, often do so by exploiting solid–solid phase transitions or concerted elastic deformations. For the resulting system to be effective... Read More about Multiscale tailoring of helical lattice systems for bespoke thermoelasticity.

Thermal prestress in composite compliant shell mechanisms (2019)
Journal Article
Stacey, J. P., O'Donnell, M. P., & Schenk, M. (2019). Thermal prestress in composite compliant shell mechanisms. Journal of Mechanisms and Robotics, 11(2), https://doi.org/10.1115/1.4042476

This paper explores the ability to tailor the mechanical properties of composite compliant shell mechanisms, by exploiting the thermal prestress introduced during the composite laminate cure. An extension of an analytical tape spring model with compo... Read More about Thermal prestress in composite compliant shell mechanisms.

Comparing the effect of geometry and stiffness on the effective load paths in non-symmetric laminates (2019)
Conference Proceeding
Minera, S., Patni, M., Weaver, P., Pirrera, A., & O'Donnell, M. P. (2019). Comparing the effect of geometry and stiffness on the effective load paths in non-symmetric laminates. https://doi.org/10.2514/6.2019-1766

© 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. In aerospace composite material design, it is common to encounter load bearing components that vary in thickness across their length. In plate design, ply drop... Read More about Comparing the effect of geometry and stiffness on the effective load paths in non-symmetric laminates.

Thermally actuated composite helical lattices (2017)
Conference Proceeding
O'Donnell, M. P., Watts, T., & Pirrera, A. (2017). Thermally actuated composite helical lattices. In Mechcomp3. 3rd international Conference of mechanics of composites

RAPID analysis of variable stiffness beams and plates: Legendre polynomial triple-product formulation (2017)
Journal Article
O'Donnell, M. P., & Weaver, P. M. (2017). RAPID analysis of variable stiffness beams and plates: Legendre polynomial triple-product formulation. International Journal for Numerical Methods in Engineering, 112(1), 86-100. https://doi.org/10.1002/nme.5528

Copyright © 2017 John Wiley & Sons, Ltd. Numerical integration techniques are commonly employed to formulate the system matrices encountered in the analysis of variable stiffness beams and plates using a Ritz based approach. Computing these integra... Read More about RAPID analysis of variable stiffness beams and plates: Legendre polynomial triple-product formulation.

Can tailored non-linearity of hierarchical structures inform future material development? (2016)
Journal Article
O'Donnell, M. P., Weaver, P. M., & Pirrera, A. (2016). Can tailored non-linearity of hierarchical structures inform future material development?. Extreme Mechanics Letters, 7, 1-9. https://doi.org/10.1016/j.eml.2016.01.006

© 2016 Elsevier Ltd. An analytical investigation into the non-linear elastic response of helical lattice structures coupled with an elastic medium is presented. Novel composite templates are then obtained to produce bespoke material characteristics b... Read More about Can tailored non-linearity of hierarchical structures inform future material development?.

Cure rate tailoring of thick composites via temperature controlled vascular pathways (2016)
Conference Proceeding
O'Donnell, M. P., Mahadik, Y., & Ward, C. (2016). Cure rate tailoring of thick composites via temperature controlled vascular pathways. In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. https://doi.org/10.2514/6.2016-0161

© 2015 American Institute of Aeronautics and Astronautics. Cure gradients in thick composite parts can lead to significant manufacturing defects. These gradients often arise due temperature differentials across the part due to differentials in extern... Read More about Cure rate tailoring of thick composites via temperature controlled vascular pathways.

Debond resisting composite stringers (2012)
Conference Proceeding
O'Donnell, M. P., Weaver, P. M., & Cosentino, E. (2012). Debond resisting composite stringers. In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference


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