AN ASSESSMENT OF A CRMOV CAST STEEL WELD JOINT FOR DYNAMIC FRACTURE-BEHAVIOR

被引：9

作者：

RAJANNA, K ^{[1
]}

BHAMBRI, SK ^{[1
]}

ACHAR, DRG ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT MET ENGN,MADRAS 600036,TAMIL NADU,INDIA

来源：

ENGINEERING FRACTURE MECHANICS | 1988年 / 29卷 / 04期

关键词：

JOINTS - Crack Propagation - STEEL CASTINGS - Testing - STEEL TESTING - Impact - WELDS - Fatigue;

D O I：

10.1016/0013-7944(88)90027-6

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Weld joint of a low alloy CrMoV cast steel used in steam turbine castings has been characterized by the dynamic fracture toughness parameter, K//I//d, through testing of precracked Charpy V-notch impact specimens on an instrumented impact test equipment. Influence of the relative orientation of fatigue precrack front and the weld zones on K//I//d is investigated in addition to individual zone analysis. A composite weld joint with crack front enveloping all the three zones simultaneously is found to be an appropriate configuration for conservative fracture mechanics based design analysis.

引用

页码：387 / &