Uniaxial, shear, and Poisson relaxation and their conversion to bulk relaxation: Studies on poly(methyl methacrylate)

被引：56

作者：

Lu, H

Zhang, X

Knauss, WG

机构：

[1] Graduate Aeronauttcai Laboratories, California Institute of Technology, Pasadena

[2] Mechanical and Aerospace Engineering, Oklahoma State University

[3] Mechanical Engineering, Kunmin Institute of Technology

来源：

POLYMER ENGINEERING AND SCIENCE | 1997年 / 37卷 / 06期

关键词：

D O I：

10.1002/pen.11750

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Multiple viscoelastic properties were determined for poly(methyl methacrylate) in the context of examining experimental limitations on deriving other properties from these measurements, specifically time dependent bulk modulus behavior. By means of master curves for uniaxial extension on plate and cylinder specimens, as well as shear (torsion) and Poisson behavior from measurements in the temperature range from -40 degrees C to 125 degrees C, it is established that excessive precision is needed for reliable interconversion of some properties to others. While normal inverse relations (modulus-compliance) are readily obtained from one set of measurements, bulk (relaxation or creep) properties cannot be derived reliably from other functions and must be determined directly.

引用

页码：1053 / 1064

页数：12

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