Numerical simulation schemes for time-dependent crack growth in hard brittle rock

被引：37

作者：

Li, Xiang ^{[1
]}

Konietzky, Heinz ^{[1
]}

机构：

[1] TU Bergakad Freiberg, Inst Geotech, Chair Rock Mech, D-09596 Freiberg, Germany

来源：

ACTA GEOTECHNICA | 2015年 / 10卷 / 04期

关键词：

Charles equation; Lifetime; Numerical simulation; Subcritical crack growth; Wing crack; STATIC FATIGUE; COMPRESSION; FAILURE; EXCAVATION; DAMAGE; MODEL; DISCONTINUITIES; DEFORMATION; DEGRADATION; STRENGTH;

D O I：

10.1007/s11440-014-0337-9

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Time-dependent crack growth in brittle rock has been studied utilizing the proposed numerical models. The modeling schemes are developed based on the theory of subcritical crack growth, linear elastic fracture mechanics and Charles equation. The lifetime prediction schemes were introduced. Simulation results of different numerical models were compared. Preliminary studies were also performed to simulate the fracture pattern of underground opening and pillar. Conclusions were drawn, and possible future work is also discussed.

引用

页码：513 / 531

页数：19

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