Analysis of the tensile stress-strain behavior of elastomers at constant strain rates. I. Criteria for separability of the time and strain effects
| Autor: | R. F. Fedors, F. Schwarzl, S. D. Hong, J. Moacanin, Robert F. Landel |
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| Rok vydání: | 1981 |
| Předmět: |
Materials science
Polymers and Plastics Strain (chemistry) business.industry Mathematical analysis food and beverages Infinitesimal strain theory Strain energy density function General Chemistry Structural engineering Strain rate Power law Viscoelasticity Condensed Matter::Materials Science Materials Chemistry Stress relaxation Constant (mathematics) business |
| Zdroj: | Polymer Engineering and Science. 21:688-695 |
| ISSN: | 1548-2634 0032-3888 |
| DOI: | 10.1002/pen.760211110 |
| Popis: | A theoretical analysis of the tensile stress-strain relation of elastomers at constant strain rate is presented which shows that the time and the stress effect are separable if the experimental time scale coincides with a segment of the relaxation modulus that can be described by a single power law. It is also shown that time-strain separability is valid if the strain function is linearly proportional to the Cauchy strain, and that when time-strain separability holds, two strain-dependent quantities can be obtained experimentally. In the case where time and strain effect are not separable, superposition can be achieved only by using temperature and strain-dependent shift factors. |
| Databáze: | OpenAIRE |
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