All Outputs (11)

Bilinear stiffness and bimodular Poisson's ratio in cylindrical sinusoidal lattices through topology morphing (2024)
Journal Article

Bilinear elastic behaviour allows structural designs to respond in either a stiff or compliant manner depending on the load. Here a cylindrical sinusoidal lattice structure is described that stiffens beyond a certain load. When subjected to axial com... Read More about Bilinear stiffness and bimodular Poisson's ratio in cylindrical sinusoidal lattices through topology morphing.

Adaptive stiffness in lattice metastructures through tensile-buckling inspired topology morphing (2023)
Journal Article

This paper explores the use of simultaneous tensile buckling of unit cells to induce a transformation in lattice topology. Under tension, unit cells undergo passive transformation from a rectangle-like to a triangle-/pentagon-like topology, with an a... Read More about Adaptive stiffness in lattice metastructures through tensile-buckling inspired topology morphing.

Stiffness tailoring in sinusoidal lattice structures through passive topology morphing using contact connections (2023)
Journal Article

Structures with adaptive stiffness characteristics present an opportunity to meet competing design requirements, thus achieving greater efficiency by the reconfiguration of their topology. Here, the potential of using changes in the topology of plana... Read More about Stiffness tailoring in sinusoidal lattice structures through passive topology morphing using contact connections.

From shear centre to eigenwrenches (2021)
Journal Article

In the field of mechanism design, the behaviour of compliant shell mechanisms is commonly characterised via the eigenscrew decomposition of their spatial stiffness matrix. Recent developments have included the design of compliant shell mechanisms mad... Read More about From shear centre to eigenwrenches.

Exploring adaptive behavior of non-linear hexagonal frameworks (2020)
Journal Article

© 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

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

© 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

© 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

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.

RAPID analysis of variable stiffness beams and plates: Legendre polynomial triple-product formulation (2017)
Journal Article

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

© 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?.