Abstract
According to the well-known models for rubberlike elasticity with strainstiffening effects, the unbounded strain energy is generated with the unlimitedly growing stress when the stretch approaches certain limits. Toward a solution to this issue, an explicit approach is proposed to derive the multi-axial elastic potentials directly from the uniaxial potentials. Then, a new multi-axial potential is presented to characterize the strain-stiffening effect by prescribing suitable forms of uniaxial potentials so that the strain energy is always bounded as the stress grows to infinity. Numerical examples show good agreement with a number of test data.
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Project supported by the National Natural Science Foundation of China (No. 11372172), the Start-up Fund from the 211-Project of the Education Committee of China (No. S.15-B002-09-032), and the Research Innovation Fund of Shanghai University (No. S.10-0401-12-001)
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Yu, L., Jin, T., Yin, Z. et al. Multi-axial strain-stiffening elastic potentials with energy bounds: explicit approach based on uniaxial data. Appl. Math. Mech.-Engl. Ed. 36, 883–894 (2015). https://doi.org/10.1007/s10483-015-1955-9
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DOI: https://doi.org/10.1007/s10483-015-1955-9
Keywords
- rubberlike elasticity
- strain limit
- strain-stiffening effect
- energy bound
- uniaxial data
- multi-axial potential