摘要
应用孔洞损伤的Gurson模型,建立糜棱岩原岩细观孔洞损伤体胞单元,提出糜棱岩成因的损伤力学观点,统一解释糜棱岩成因研究中一些独特的地质现象.对一种具体原岩———花岗岩的细观孔洞损伤体胞单元作了有限元计算分析,并根据计算结果讨论了各种应力对糜棱化过程的影响.
The meso-damage mechanical RVE(representative volume element) of mylonite parent rock is established in this paper founded on the damage mechanics model of Gurson.A view about mylonite formation is also given.Ligaments bear high pressure in the direction of axis and low pressure in the direction of the porous medium.Some strange geology phenomena on mylonite formation are explained according to this view.Finite element method analysis of the mylonite course of a specific mylonite parent rock,granite,is give...
出处
《固体力学学报》
CAS
CSCD
北大核心
2006年第S1期143-147,共5页
Chinese Journal of Solid Mechanics
关键词
Gurson模型
糜棱岩
损伤力学
细观孔洞损伤体胞
有限元分析
damage mechanics model of Gurson
mylonite
damage mechanics
meso-damage mechanical RVE
analysis of the model
numerical simulation
