FRACTURE CHARACTERIZATION OF TOUGH POLYMERS USING THE J-METHOD

被引：72

作者：

HASHEMI, S

WILLIAMS, JG

机构：

[1] Imperial Coll of Science &, Technology, London, Engl, Imperial Coll of Science & Technology, London, Engl

来源：

POLYMER ENGINEERING AND SCIENCE | 1986年 / 26卷 / 11期

关键词：

PLASTICS - Testing - POLYMERS - Mechanical Properties - THERMAL EFFECTS;

D O I：

10.1002/pen.760261107

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The use of the J method to characterize fracture is described, and it is noted that smaller specimens may be used to obtain plane strain values than in conventional linear elastic fracture mechanics (LEFM) tests. Various methods of computing J are described, and the extrapolations necessary to define crack initiation are discussed. The various schemes and size criteria are then explored for a polypropylene copolymer, and it is found that the recommended ASTM procedure using energy works well. The method is then used to characterize several toughened polymers, and some discussion of the slope of the resistance curve is given.

引用

页码：760 / 767

页数：8

共 9 条

[1]

BROWN WF, 1966, ASTM STP, V410

[2]

CHAN MKV, 1983, INT J FRACTURE, V23, P145

[3] PLANE-STRAIN FRACTURE-TOUGHNESS TESTING OF HIGH-DENSITY POLYETHYLENE [J].