摘要
如何准确描述岩土的应变软化已是岩土力学研究的难题,而岩土介质的软化性状与应变局部化的产生和发展直接相关。阐述了研究岩土材料的软化性状的意义以及岩土材料的软化与应变局部化的关系。从实验研究、理论建模和数值模拟三方面综述应变局部化在岩土力学中的研究现状;说明应变局部化发生时考虑应变梯度的必要性;就应变局部化研究在岩土力学中的发展趋势提出初步看法。
It is difficult to describe the strain softening of geo-materials. In order to analyze softening mechanism of geo-materials in essence, it is necessary to combine the researches of softening mechanism with the researches of strain localization evolvement. The developments of strain localization researches in geotechnical mechanics, such as experimental researches, theoretical modeling and numerical simulations, have been reviewed. When strain localization happened, the necessity to consider the strain-gradient was illuminated. Some primary ideas about the trends of strain localization researches in geotechnical mechanics were put forward.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第3期494-499,共6页
Rock and Soil Mechanics
基金
湖南省教育厅资助项目(No.02q1010)。
