MICROMECHANICS OF IMPACT FRACTURE OF ROCK

被引：112

作者：

GRADY, DE

KIPP, ME

机构：

[1] A U.S. Department of Energy Facility, Sandia Laboratories, Albuquerque

来源：

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES | 1979年 / 16卷 / 05期

关键词：

D O I：

10.1016/0148-9062(79)90240-7

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Impact methods are used to create controlled dynamic fracture in Arkansas novaculite and laser interferometry is used to determine the time resolved stress during fracture. Experimental fracture stresses and fracture energies are determined under varying dynamic tensile loading conditions. Rate-dependent fracture is observed and found to be in accordance with concepts of linear elastic fracture mechanics applied to microstructural fracture initiation. A micromechanical fracture model based on these concepts is used to calculate the dynamic fracture results. © 1979.

引用

页码：293 / 302

页数：10

共 13 条

[1]

Achenbach J D, 1973, QUASISTATIC DYNAMIC, P529

[2] SHOCK-WAVE STUDIES OF PMMA, FUSED SILICA, AND SAPPHIRE [J].