STUDY OF CRACK TIP OPENING UNDER CYCLIC LOADING TAKING INTO ACCOUNT THE ENVIRONMENT AND R RATIO

被引：26

作者：

CLERIVET, A

BATHIAS, C

机构：

[1] Département de Génie Mécanique, Université de Technologie de Compiègne, 60 206 Compiègne

来源：

ENGINEERING FRACTURE MECHANICS | 1979年 / 12卷 / 04期

关键词：

D O I：

10.1016/0013-7944(79)90100-0

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This study involves the R effect and environment effect on crack closure mode, in 7175 T 651 aluminium alloy. To obtain one of the selected objectives, it was necessary to use a clip gauge located at the notch of the compact specimen and a C.T.O.D. gauge located at the crack tip. The crack opening phenomena observed in our tests depends on the applied method which accounts for the differences in ΔKeff found in the literature. The systematic use of the two methods allowed us to bring to light common features permitting the calculation of ΔKeff according to Elber's criteria. The concept of ΔKeff does not fully explain the influence of R ratio and the environment effect. © 1979.

引用

页码：599 / 611

页数：13