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Hollow sphere structures : a study of mechanical behaviour using numerical simulation

Oliveira, B. F. and da Cunda, L. A. B. and Öchsner, A. and Creus, G. J. (2009) Hollow sphere structures : a study of mechanical behaviour using numerical simulation. Materialwissenschaft und Werkstofftechnik, 40 (3). pp. 144-153. ISSN 09335137

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Official URL: http://dx.doi.org/10.1002/mawe.200900420

Abstract

One way to obtain a cellular metal with a uniform microstructure is to employ hollow metallic spheres welded or bonded. Such materials are known as MHSS (Metallic Hollow Sphere Structures). Cellular metals can be applied as crash absorbers that act in compression and can be severely deformed. Thus, finite deformations and damage must be considered in the numerical simulation. In this work, the numerical simulation via finite elements is employed to study the mechanical behaviour of MHSS. The study employs the concept of RVE (Representative Volume Elements) where a cell is used to represent the whole material behaviour. Numerical results are compared with experimental data.

Item Type:Article
Uncontrolled Keywords:cellular metals, ductile damage, finite strains, metal foams, MHSS
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:14868
Deposited By: Ms Zalinda Shuratman
Deposited On:30 Sep 2011 15:14
Last Modified:30 Sep 2011 15:14

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