Imperial College London
Alternate

Professor M Ahmer Wadee

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Nonlinear Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 6050a.wadee Website

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

421Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zschernack:2016:10.1016/j.compstruct.2015.09.059,
author = {Zschernack, C and Wadee, MA and Völlmecke, C},
doi = {10.1016/j.compstruct.2015.09.059},
journal = {Composite Structures},
pages = {217--228},
title = {Nonlinear buckling of fibre-reinforced unit cells of lattice materials},
url = {http://dx.doi.org/10.1016/j.compstruct.2015.09.059},
volume = {136},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Truss-based lattice materials are cellular materials with an outstanding potential for multi-functional use. This is owing to properties of high compressive strength to density ratios combined with a periodic and open structure. However, such structures at low relative densities are particularly vulnerable to elastic buckling failure. Fibre-reinforcement that increases the buckling strength of lattice materials is proposed and the behaviour of unit cells that are tessellated within the lattice is investigated. A two-dimensional square orientated unit cell and a three-dimensional tetrahedron-shaped unit cell are both modelled discretely using energy principles with the nonlinear interactive buckling behaviour being analysed. The analytical approach, based on a perturbation method, exhibits excellent agreement for the mechanical response when compared to results from numerical continuation for moderately large displacements. A fundamental understanding of the mechanical behaviour of a unit cell can be upscaled in future work. It is postulated that this will enable the determination of the constitutive behaviour of such lattice materials.
AU  - Zschernack,C
AU  - Wadee,MA
AU  - Völlmecke,C
DO  - 10.1016/j.compstruct.2015.09.059
EP  - 228
PY  - 2016///
SN  - 1879-1085
SP  - 217
TI  - Nonlinear buckling of fibre-reinforced unit cells of lattice materials
T2  - Composite Structures
UR  - http://dx.doi.org/10.1016/j.compstruct.2015.09.059
UR  - http://hdl.handle.net/10044/1/26536
VL  - 136
ER  -
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