Measurement of the instantaneous modulus of viscoelastic materials by uniaxial tensile test

被引：0

作者：

Liu E. ^{[1
]}

Xiao G. ^{[1
]}

Wang H. ^{[1
]}

Yang X. ^{[2
]}

Shu X. ^{[1
]}

机构：

[1] Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan

[2] College of Applied Science, Taiyuan University of Science and Technology, Taiyuan

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2016年 / 32卷 / 08期

关键词：

Creep compliance; Instantaneous modulus; Rate-jump; Viscoelastic materials;

D O I：

10.16865/j.cnki.1000-7555.2016.08.020

中图分类号：

学科分类号：

摘要：

The uniaxial tensile creep and rate-jump tests were performed on PA12 specimens to obtain the tensile creep compliance and stress rate-strain rate response just before and just after the imposed jump, and the instantaneous modulus under two different kinds of test conditions were figured out. The tensile creep test method based on constitutive model consisted of elastic springs and viscous dashpots is only suitable for linear viscoelastic materials, but the rate-jump test method can be applicable to nonlinear viscoelastic materials. Results show that the values measured by two methods are similar, however compared to rate-jump test, the tensile creep test method is a more efficient way to gain the instantaneous modulus of viscoelastic materials. © 2016, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：104 / 108and114

共 8 条

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