It is of great theoretical and pr actical significances to analyse the localizations of deformation and damage an d to study the complete stress-strain relation for mesoscopic heterogenous rock s under uniaxial tensile loading.
用损伤力学理论研究了细观非均匀性岩石拉伸应力应变关系(包括线弹性阶段、非线性强化阶段、应力降阶段、应变软化阶段) ,分析了产生应力跌落和应变软化的主要原因是损伤和变形局部化,将损伤和变形局部化引入本构模型是和以往模型的重要区别。
Based on the self-similar model of microcrack growth, the localization of strain and damage, and complete stress s train relation for mesoscopic heterogenous rock mass under triaxial compression with high lateral compressive stress are investigated.
基于高围压条件下细观非均匀性岩石的变形局部化问题和全过程应力应变关系,引入岩石的分形特性,推导了岩石在高围压条件下的损伤本构关系。
The lithogeochemical heterogeneity in rocks are mainly due to measurement error, closure and petrological controls.
介绍了造成岩石地球化学不均匀性的原因 ,主要有测量误差、闭合问题及岩石学方面的控制等。
