摘要
岩土破损力学把结构性岩土材料抽象成由胶结强的胶结块和无胶结的软弱带组成的二元结构体 ,变形过程中胶结块逐步破损并向软弱带转化。从不均质材料的均匀化理论出发推导了破损参数的演化规律 。
Breakage mechanics conceptualizes the geological materials as binary structural bodies consisting of bonded blocks and weakened bands. During their deformation the blocks break down gradually and turn to be weakened bands. In this paper, starting from the homogenization theory of heterogeneous materials, the evolution law of breakage parameter has been derived, and through an ideal brittle elasto plastic model the typical behaviors of geological materials of softening under low confining stress and hardening under high confining stress have been successful simulated.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2003年第3期253-257,共5页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金资助项目 (1 0 2 72 0 62 )
关键词
岩土材料
破损力学
本构模型
不均匀介质
geological materials
breakage mechanics
constitutive model
heterogeneous materials
