Essential work of fracture in polymer films

被引：41
作者：
Levita, G
Parisi, L
Mcloughlin, S
机构：
[1] UNIV PISA,DEPT CHEM ENGN,I-56126 PISA,ITALY
[2] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT MAT SCI,LONDON SW7 2BP,ENGLAND
来源：
JOURNAL OF MATERIALS SCIENCE | 1996年 / 31卷 / 06期
关键词：
D O I：
10.1007/BF00357863
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fracture behaviour of two polymer films (100 mu m thick) has been investigated according to the essential work of fracture (EWF) approach in order to assess the validity of the linear relationship between the specific total work of fracture and the ligament length, postulated to exist by the EWF theory, and examine the transition from plane strain to plane stress conditions. Double edge notched specimens loaded in tension were used; ligaments were varied in the range 0.3 to 45 mm. No linear relationship was found and it was confirmed that a power law can be very accurately fitted to the experimental data. An annealed copper film (100 mu m thick) exhibited the same pattern of behaviour.
引用
收藏
页码：1545 / 1553
页数：9
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