摘要
应用俞茂宏的统一强度理论和统一滑移线场理论给出了锐角楔体极限荷载的统一滑移线解,此解考虑了材料的拉压异性及中间主应力对结构的影响,且基于Tresca、Mises、Mohr-Coulomb准则的极限荷载解均为此统一解的特例。文中运用了大型有限元软件Ansys进行了模拟,将统一解与有限元分析结果比较,说明了统一滑移线解比较接近真实解。
The ultimate loads for acute wedge are obtained based on the unified slip line theory and the unified strength theory （UST）. The strength difference effect（SD effect） and the intermediate principal stress effect are taken into account in this solution. The solution based on Tresca, Mises and Mohr- Coulomb criterion are all special cases of the solution obtained in this paper. The ultimate loads of the wedge are also analyzed by the program ANSYS. It can be concluded that the unified slip line theory is suitable for analysis of the limit loads for acute wedge.
出处
《地下空间与工程学报》
CSCD
2005年第6期889-891,共3页
Chinese Journal of Underground Space and Engineering
基金
教育部博士点基金资助项目(20040710001)
陕西省自然科学基金资助项目(2003E215)
关键词
统一滑移线
楔体
极限荷载
有限元
unified slip line
acute wedge
ultimate load
finite element
