Dynamic Fracturing Simulation of Brittle Material using the Distinct Lattice Spring Method with a Full Rate-Dependent Cohesive Law

被引：49

作者：

Kazerani, T. ^{[1
]}

Zhao, G. F. ^{[1
]}

Zhao, J. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, LMR, EPFL ENAC IIC LMR, CH-1015 Lausanne, Switzerland

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 2010年 / 43卷 / 06期

基金：

瑞士国家科学基金会;

关键词：

Dynamic fracturing; Crack propagation velocity; Rate-dependent cohesive law; DLSM; FINITE-ELEMENT-METHOD; CRACK-GROWTH; NUMERICAL SIMULATIONS; MODEL; PROPAGATION; DAMAGE; VISCOELASTICITY; BEHAVIOR; STRESS; STEEL;

D O I：

10.1007/s00603-010-0099-0

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A full rate-dependent cohesive law is implemented in the distinct lattice spring method (DLSM) to investigate the dynamic fracturing behavior of brittle materials. Both the spring ultimate deformation and spring strength are dependent on the spring deformation rate. From the simulation results, it is found that the dynamic crack propagation velocity can be well predicted by the DLSM through the implemented full rate-dependent cohesive law. Furthermore, a numerical investigation on dynamic branching is also conducted by using the DLSM code.

引用

页码：717 / 726

页数：10

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