A Numerical Investigation of the Performance of a Nacre-like Composite under Blast Loading

Tran, P 2016, 'A Numerical Investigation of the Performance of a Nacre-like Composite under Blast Loading', Applied Mechanics and Materials, vol. 846, pp. 464-469.


Document type: Journal Article
Collection: Journal Articles

Title A Numerical Investigation of the Performance of a Nacre-like Composite under Blast Loading
Author(s) Tran, P
Year 2016
Journal name Applied Mechanics and Materials
Volume number 846
Start page 464
End page 469
Total pages 6
Publisher Scientific.Net
Abstract This paper investigates the behaviour of a bio-inspired finite element composite model (that mimics the structure of nacre, the inner layer of molluscan shells) under blast loading. Nacre, which has attracted the attention of researchers over the past few decades, comprises 95% aragonite, brittle voronoi-like polygonal tablets that are joined by an organic matrix and arranged in a brick and mortar type structure. In this work, the finite element model developed herein was constructed using voronoi diagrams and geometric algorithms capable of automatically generating staggered layers of voronoi-like aluminium tablets bonded together by a vinylester adhesive layer. Many studies have led to the belief that the magnificent toughness of nacre is mainly attributed to the inter-platelet adhesive bonds. Results obtained from the finite element analysis show that this is indeed true, and it is imperative that the adhesive bond exhibits adequate toughness in order to be able to spread damage across the entire composite, thereby delaying localised failure.
Subject Composite and Hybrid Materials
Solid Mechanics
Numerical Modelling and Mechanical Characterisation
Keyword(s) nacre
composite panel
blast loading
voronoi structure.
DOI - identifier 10.4028/www.scientific.net/AMM.846.464
Copyright notice © 2016 Trans Tech Publications, Switzerland
ISSN 1660-9336
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