Strength Hypothesis Applied to Hard Foams

Vladimir A. Kolupaev; Alexandre Bolchoun; Holm Altenbach

doi:10.4028/www.scientific.net/AMM.70.99

Paper Titles

Approaches to Synchronise Conventional Measurements with Optical Techniques at High Strain Rates
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Damage Observation and Analysis of a Rock Brazilian Disc Using High-Speed DIC Method
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Assessment of the Deformation of Low Density Polymeric Auxetic Foams by X-Ray Tomography and Digital Volume Correlation
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Strength Hypothesis Applied to Hard Foams
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Characterisation and Modelling of a Melt-Extruded LDPE Closed Cell Foam
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Verification of a Finite Element Simulation of the Progressive Collapse of Micro Lattice Structures
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Model Updating for a Welded Structure Made from Thin Steel Sheets
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 70Strength Hypothesis Applied to Hard Foams

Strength Hypothesis Applied to Hard Foams

Abstract:

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.

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Periodical:

Applied Mechanics and Materials (Volume 70)

Pages:

99-104

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.70.99

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Online since:

August 2011

Authors:

Vladimir A. Kolupaev, Alexandre Bolchoun, Holm Altenbach

Keywords:

3D-Tension, BURZYŃSKI-Plane, Evaluation, Objective Function, PARETO-Diagram

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