Imperial College London
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Dr Andrew Phillips

Faculty of Engineering, Department of Civil and Environmental Engineering

Reader in Structural Biomechanics
 
 
 
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Contact

 

+44 (0)20 7594 6081andrew.phillips Website

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

433Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wadee:2020:10.3389/fmats.2020.00134,
author = {Wadee, MA and Phillips, ATM and Bekele, A},
doi = {10.3389/fmats.2020.00134},
journal = {Frontiers in Materials},
title = {Effects of disruptive inclusions in sandwich core lattices to enhance energy absorbency and structural isolation performance},
url = {http://dx.doi.org/10.3389/fmats.2020.00134},
volume = {7},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The energy absorption and structural isolation performance of axially-compressed sandwich structures constructed with stiff face plates separated with an auxetic lattice core metamaterial is studied. Advances in additive manufacturing increasingly allow bespoke, carefully designed, structures to be included within the core lattice to enhance mechanical performance. Currently, the internal structure of the lattice core is deliberately disrupted geometrically to engineer suitable post-buckling behaviour under quasi-static loading. The desirable properties of a high fundamental stiffness and a practically zero underlying stiffness in the post-buckling range ensure that energy may be absorbed within a limited displacement and that any transfer of strain to an attached structure is minimized as far as is feasible. It is demonstrated that such disruptions can be arranged to enhance the panel performance. The concept may be extended to promote cellular buckling where the internal lattice buckles with densification occurring at defined locations and in sequence to absorb energy while maintaining a low underlying mechanical stiffness.
AU  - Wadee,MA
AU  - Phillips,ATM
AU  - Bekele,A
DO  - 10.3389/fmats.2020.00134
PY  - 2020///
SN  - 2296-8016
TI  - Effects of disruptive inclusions in sandwich core lattices to enhance energy absorbency and structural isolation performance
T2  - Frontiers in Materials
UR  - http://dx.doi.org/10.3389/fmats.2020.00134
UR  - http://hdl.handle.net/10044/1/79604
VL  - 7
ER  -
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