Statistical formulation and experimental determination of growth rate of micrometre cracks under impact loading

被引：15

作者：

Han, WS ^{[1
]}

Xia, MF ^{[1
]}

Shen, LT ^{[1
]}

Bai, YL ^{[1
]}

机构：

[1] BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 1997年 / 34卷 / 22期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0020-7683(96)00203-X

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A new statistical formulation and a relevant experimental approach to determine the growth rate of microcracks were proposed. The method consists of experimental measurements and a statistical analysis' on the basis of the conservation law of number density of microcracks in phase space. As a practical example of the method, the growth rate of microcracks appearing in an aluminium alloy subjected to planar impact loading was determined to be ca. 10 mu m/mu s under a tensile stress of 1470 MPa and load duration between 0.26 mu s and 0.80 mu s. (C) 1997 Elsevier Science Ltd.

引用

页码：2905 / 2925

页数：21

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