摘要
运用岩石破裂过程分析RFPA2D系统 ,数值模拟了单轴压缩试验下试样破裂失稳的过程 ,主要研究了残余强度特性对岩石类非均质材料弹 脆 塑性的影响。对大量不同残余强度岩石试样的数值模拟结果显示 :残余强度是影响岩石弹 脆 塑性的重要方面 ,残余强度越高 ,岩石越容易表现为塑性 。
By RFPA 2D (Rock Failure Process Analysis) Code,the failure processes of lots of rock specimens are simulated under uniaxial test.The influence of residual strength on elasticity,brittleness and plasticity of rock is mainly studied.The results of numerical simulation show that the residual strength has great effect on elasticity,brittleness and plasticity of rock,with the increase of residual strength,rock specimens perform more plasticity and higher peak compression strength.
出处
《岩土工程技术》
2004年第2期59-63,共5页
Geotechnical Engineering Technique
基金
国家自然科学基金(5 0 374 0 2 0
5 0 1340 4 0
5 0 174 0 13)
关键词
岩石
残余强度
弹-脆-塑性
数值模拟
rock
residual strength
elasticity brittleness plasticity
numerical simulation
