Chinese Soc Theoret & Appl Mech, Chinese Chem Soc, Chinese Soc Rheol, Xiangtan Univ, E China Univ Sci & Technol, Fudan Univ, China Univ Petr, PetroChina Co Ltd, Langfang Branch Res Inst Petr E&D, Appl Rheol
出版地：
EDITORIAL OFFICE, CHANGSHA, HUNAN 410083, PEOPLES R CHINA
Polymethyl methacrylate(PMMA) is a kind of typical viscoelastic polymer materials, whose deformation and rheologic fracture are related not only with time and temperature, but also with strain rate on loading. By the quasi-static uniaxial tension test at defferent loading rates, the strain-rate-dependent stress-time equation of PMMA material was gotten with H-K mode. In the range of given strain rates, tes, E 2(˙Ε) is almost not varied with strain rate, but E 1( ˙Ε) and η1(˙Ε) augment with strain rate reducing, which shows that viscosity of PMMA material...
