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Numerical Prediction of Quasi-Static Compression, Indentation Impact and Shock Loading Behaviour of Aluminium Foam Using Idealized Cell Geometry

Numerical Prediction of Quasi-Static Compression, Indentation Impact and Shock Loading Behaviour... Three-dimensional model of closed cell foam based on idealized geometry is developed and used to study its response under quasi-static compression, impact and shock loading. Foams with a wide range of densities and corresponding cell morphologies are modeled. Geometry of the unit cells used to construct the 3-D model is based on experimentally measured cell sizes and cell wall thicknesses. The numerical model is validated against experimentally determined stress vs. strain relationship, depth of indentation, indentation force, total deformation under shock loading etc. A comprehensive insight is obtained about local deformation and failure mechanisms such as cell edge bending, buckling and cell wall tearing. This knowledge can provide critical inputs in the design of foam-based shock absorbers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Dynamic Behavior of Materials Springer Journals

Numerical Prediction of Quasi-Static Compression, Indentation Impact and Shock Loading Behaviour of Aluminium Foam Using Idealized Cell Geometry

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References (51)

Publisher
Springer Journals
Copyright
Copyright © Society for Experimental Mechanics, Inc 2022
ISSN
2199-7446
eISSN
2199-7454
DOI
10.1007/s40870-022-00336-9
Publisher site
See Article on Publisher Site

Abstract

Three-dimensional model of closed cell foam based on idealized geometry is developed and used to study its response under quasi-static compression, impact and shock loading. Foams with a wide range of densities and corresponding cell morphologies are modeled. Geometry of the unit cells used to construct the 3-D model is based on experimentally measured cell sizes and cell wall thicknesses. The numerical model is validated against experimentally determined stress vs. strain relationship, depth of indentation, indentation force, total deformation under shock loading etc. A comprehensive insight is obtained about local deformation and failure mechanisms such as cell edge bending, buckling and cell wall tearing. This knowledge can provide critical inputs in the design of foam-based shock absorbers.

Journal

Journal of Dynamic Behavior of MaterialsSpringer Journals

Published: Sep 1, 2022

Keywords: Aluminium foam; Finite element analysis; Shock tube; Impact indentation

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