Numerical Investigation on Dynamical Response of Aluminum Foam Subject to Hypervelocity Impact With Material Point Method

Owing to its low density and good energy absorption capability, aluminum foam is an excellent protective material for spacecraft against debris impact. However, because of its complicated microstructure, it is very difficult to generate a FEM mesh accounting for the real microstructure of the allumi...

Full description

Saved in:
Bibliographic Details
Published inComputer modeling in engineering & sciences Vol. 83; no. 5; pp. 527 - 545
Main Authors Gong, W, Liu, Y, Zhang, X, Ma, H
Format Journal Article
LanguageEnglish
Published 2012
Subjects
Aluminum
Computer simulation
Finite element method
Foams
Mathematical models
Meshless methods
Protective
Three dimensional models
Online AccessGet full text

Cover

More Information
Summary:Owing to its low density and good energy absorption capability, aluminum foam is an excellent protective material for spacecraft against debris impact. However, because of its complicated microstructure, it is very difficult to generate a FEM mesh accounting for the real microstructure of the alluminum foam. On the contrary, it is very easy to model three-dimensional problems with very complicated geometry with meshfree/meshless methods. Furthermore, the material point method has obvious advantages in modeling problems involving extreme large deformation problems like hypervelocity impact problem. In this paper, a three-dimensional material point model accounting for the real microsctructure of aluminum foam is created based on the scanned CT images, and is used to study the protective capacity of aluminum foam in different Whipple shield structures using our three-dimensional material point method code, MPM3D. The simulation results agree well with the experimental data.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1526-1492