The role of stereology in estimation of ductile fracture toughness of structural materials

被引：0

作者：

Sivaprasad, S ^{[1
]}

Tarafder, S ^{[1
]}

Das, SK ^{[1
]}

Ranganath, VR ^{[1
]}

Ray, KK ^{[1
]}

机构：

[1] Natl Met Lab, Jamshedpur 831007, Bihar, India

来源：

IMAGE ANALYSIS IN MATERIALS AND LIFE SCIENCES | 2001年

关键词：

setero imaging; stretch zone; ductile fracture;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The stretch zone ahead of a crack tip in a ductile material governs its fracture toughness. A unique stereological procedure is suggested in this report to determine the nature of the stretch zone by measurement of its height and width. This procedure does not pre-assume the shape of the stretch zone as has been done in the ASTM standard E813, and is capable of explaining J integral fracture toughness in a generalized way. A series of seterological measurements of the nature of stretch zones in two micro-alloyed steels illustrate the potential of the suggested technique.

引用

页码：86 / 95

页数：10

共 20 条

[1]

*ASTM, 1996, ANN BOOK ASTM STAND, P968

[2] EVALUATION OF FRACTURE-TOUGHNESS OF HSLA80 STEEL AT HIGH LOADING RATES USING STRETCH ZONE MEASUREMENTS [J].