Strength Hypothesis Applied to Hard Foams

Abstract:

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The analysis of well-known strength hypotheses leads to the derivation of a generalized model, which contains a number of known hypotheses as special cases and could be used for the description of the 3D-failure of hard foams. This model in the case of the strength hypothesis for hard foams is characterized by a closed surface in the principal stress space. In order to fit the model to the experimental data certain objective functions are formulated. The optimization results are shown in the Pareto-diagram (optimal solutions for several targets). The results of the fitting are plotted in the Burzyński-plane. It can be seen that reliable modeling requires the knowledge of the material behavior under hydrostatic tension and compression.

Info:

Periodical:

Edited by:

R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn

Pages:

99-104

DOI:

10.4028/www.scientific.net/AMM.70.99

Citation:

V. A. Kolupaev et al., "Strength Hypothesis Applied to Hard Foams", Applied Mechanics and Materials, Vol. 70, pp. 99-104, 2011

Online since:

August 2011

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$35.00

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