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Behaviour of syntactic and partial hollow sphere structures under dynamic loading

Vesenjak, Matej and Fiedler, Thomas and Ren, Zoran and Öchsner, Andreas (2008) Behaviour of syntactic and partial hollow sphere structures under dynamic loading. Advanced Engineering Materials , 10 . pp. 185-191. ISSN 1438-1656

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Official URL: http://dx.doi.org/10.1002/adem.200700325

Abstract

A study was conducted to configure the morphology and topology influences of metallic hollow sphere structures (MHSS) with dynamic impact loading that necessitates incorporation of the strain rate sensitivity. Finite element computational simulations of MHSS properties under high strain rates were conducted for explaining strain rate sensitivity and geometric nonlinearities in the macroscopic material response. The MHSS behavior under uniaxial impact loading conditions was examined using the explicit finite element code LS-DYNA. The stress-strain characteristics of cubic MHSS with syntactic and partial morphology under compressive loading was also analyzed. Computational simulations show that the response of MHSS liable to dynamic loading depends on the strain rate, topology, sphere wall thickness and morphology.

Item Type:Article
Uncontrolled Keywords:computer simulation, dynamic loads, finite element method, morphology, strain rate, syntactics, thickness measurement, topology, compressive loading, geometric nonlinearities, hollow spheres, material response, spheres
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:12509
Deposited By: Liza Porijo
Deposited On:06 Jun 2011 08:42
Last Modified:06 Jun 2011 08:42

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