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THE RATE-TEMPERATURE EQUIVALENCE OF VISCOELAS-TIC BEHAVIOR FOR GLASSY POLYMER PMMA[J]. Chinese Journal of Theoretical and Applied Mechanics, 1993, 25(2): 226-231. DOI: 10.6052/0459-1879-1993-2-1995-636
Citation: THE RATE-TEMPERATURE EQUIVALENCE OF VISCOELAS-TIC BEHAVIOR FOR GLASSY POLYMER PMMA[J]. Chinese Journal of Theoretical and Applied Mechanics, 1993, 25(2): 226-231. DOI: 10.6052/0459-1879-1993-2-1995-636

THE RATE-TEMPERATURE EQUIVALENCE OF VISCOELAS-TIC BEHAVIOR FOR GLASSY POLYMER PMMA

  • The law of the strain-rate-temperature equivalence of PMMA up to yielding is discussed based on the viscoelastic/plastic constitutive model and experimental data of stress-strain curves at the range of T = 233-343K and ε=1.0×10-4-1.0×10-1s-1. The existence of the shifting factor ar and normalized stress-strain master curve shows the existence of strain-rate-tem. perature correspondence of PMMA before yielding.
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