A NEW APPROACH TO FRACTURE-TOUGHNESS ANALYSIS AND ITS APPLICATION TO ABS POLYMERS

被引：4
|
作者：
NI, BYH
ZHANG, TY
LI, JCM
机构：
[1] Materials Science Program, Department of Mechanical Engineering, University of Rochester, Rochester, New York
来源：
JOURNAL OF MATERIALS RESEARCH | 1991年 / 6卷 / 06期
关键词：
D O I：
10.1557/JMR.1991.1369
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new approach is proposed to analyze the fracture behavior with crack tip plasticity by the use of three independent measurements: E0 is the energy required per unit length of crack front to prepare the crack just before propagation; the E(f)-curve is a plot of the energy required to produce a unit area of fractured surface versus the crack length; and the K(a)-curve is a plot of the applied stress intensity factor K(Iapp) versus the crack length. For ABS polymers, the prefracture energy E0 is 33 Jm-1; the E(f)-curve is a horizontal line of 5.2 x 10(4) Jm-2; and the K(a) curve has three different regions which depend on the development of the plastic zone during fracture.
引用
收藏
页码：1369 / 1373
页数：5
相关论文
共 50 条
12345