岩石动态破坏的时效损伤本构模型  

TIME DEPENDENT DAMAGE MODEL OF ROCK UNDER DYNAMIC LOADING

作　　者：单仁亮[1] 薛友松[1] 张倩[1] 

机构地区：[1]中国矿业大学(北京校区)建筑工程系,北京100083

出　　处：《岩石力学与工程学报》2003年第11期1771-1776,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金(49502041)资助项目。

摘　　要：阐述了国内外对岩石动态本构模型的研究现状。结合对花岗岩和大理岩实测冲击破坏本构曲线的分析,将统计损伤模型和粘弹性模型相结合,建立了一个简明的岩石冲击破坏时效损伤模型。利用该模型计算得到的本构曲线与实验数据的直接计算结果具有较好的一致性。The current studying status of dynamic constitutive model of rock is reviewed. Based on analysis of measured dynamic constitutive curves, and combining statistic damage model and viscoelastic model, a time dependent damage model of rock under dynamic loading is established. There is a good coherence between stress-strain curves calculated from the proposed model and that from experimental data directly.

关 键 词：岩石力学 冲击 时效损伤模型 花岗岩 大理岩 粘弹性模型 

分 类 号：TU452[建筑科学—岩土工程]