Comparative study of models for nonlinear viscoelastic creep of polycarbonate
The creep behavior of a commercial grade polycarbonate is investigated. Ten different constant stresses ranging from 8 MPa to 50 MPa were applied to the specimen, and the resultant creep strains were measured at room temperature. It is found that the creep could be modeled linearly below 15 MPa, and nonlinearly above 15 MPa. Different nonlinear viscoelastic models have been briefly reviewed and used to fit the test data. It is shown that the Schapery model represents a generalization of the modified superposition principle, and bom the Findley model and the Struik representation are suitable for properly describing the creep behavior of the polycarbonate investigated in this paper; however, the Findley model fit the data better man the Struik representation at high stress.
Wen-bo Luo Xin Tang Said Jazouli Toan Vu-Khanh Yoshihiro Tomita
College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105,Hunan Province, Chi College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105,Hunan Province, Chi Department of Mechanical Engineering, Ecole de technologie superieuie, 1100, Notre-Dame Street West, Faculty of Engineering, Kobe University, 1-1, Rokkodai-cho, Nada, Kobe 657-8501, Japan
国际会议
The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)
上海
英文
804-809
2007-06-11（万方平台首次上网日期，不代表论文的发表时间）