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Development of a Macroscopic Yield Function for Polymeric Foams
Technical Paper
2004-01-0465
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A macroscopic yield function is proposed here to characterize a polymeric foam under a full range of loading conditions. The principal stresses of a stress tensor and the second invariant of the deviatoric stress tensor are the main parameters in the yield function. The yield function is expressed in terms of a linear combination of non-quadratic functions of the relative principal stresses and the second invariant of the deviatoric stress tensor. The non-quadratic yield function can be used to describe the yield behavior of a polymeric foam in Deshpande and Fleck [1] under a full range of loading conditions. A comparison of different macroscopic yield functions to describe the yield behavior of the foam is also presented.
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Citation
Wang, D. and Pan, J., "Development of a Macroscopic Yield Function for Polymeric Foams," SAE Technical Paper 2004-01-0465, 2004, https://doi.org/10.4271/2004-01-0465.Also In
Advances in Modelling of Materials and Structures for Crash Applications
Number: SP-1843; Published: 2004-03-08
Number: SP-1843; Published: 2004-03-08
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