Large Elastic Strains of Plastic Foams |
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| Authors: | D A Chernous S V Shil'ko |
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| Institution: | (1) Belyi Metal-Polymer Research Institute, Belarus National Academy of Sciences, Gomel', Belarus |
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| Abstract: | The elastic deformation of plastic foams with a low (< 6%) volume fraction of solid phase is described based on a 4-rod equivalent
element. A criterion is proposed which allows one to determine the parameter of structure of this element. Based on an analysis
of the equivalent element, a procedure is developed for constructing the compression diagram of plastic foams in the region
of large (> 70%) strains. The calculation results are compared with data found in the literature and experimental results
for polyurethane foams obtained by the present authors.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 41, No. 5, pp. 619–632, September–October, 2005. |
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| Keywords: | foams implants volume fraction of solid phase structural element effective Young's modulus nonlinear elastic deformation loss of stability |
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