摘要
本文将第一作者于１９８３年提出的双剪强度理论和１９９０年提出的统一强度理论推广为涵义更广的统一强度理论弹塑性本构模型，并将它们在计算机程序中实现，应用于结构弹塑性分析。统一强度理论及其弹塑性本构模型和相应的统一弹塑性计算程序，包含了现有的各种主要强度理论和新的可能的强度理论，它可以适用于范围十分广泛的各种工程材料和工程结构的弹塑性分析和塑性极限分析，它们的工程应用还能取得较大的经济效益，即更有效地发挥材料的强度潜力和节省工程投资。
The twin shear strength theory and unified strength theory proposed by Yu Mao-hong in 1983 and 1990 respectively are extended to be used as a general unified elasto plastic constitutive model in this paper. This unified elastoplastic constitutive model has been implemented in a elastoplastic finite element computational program and applied to the elastic plastic analysis of engineering structures.Unified strength theory(failure criterion) and its associated elastoplastic constitutive model and unified elastic plastic computational progam include the wellknown strength theories and some new possible strength theories. It can be adapted for most kinds of materials, and used for the elasto plasic analysis and limit analysis of engineering structures. The engineering use of this unified strength theory, unified elasto plastic constitutive model and unified elasto plastic computational program can raise high the utilization ratio of mainals, reduce the investment and produce huge economic effect.
出处
《工程力学》
EI
CSCD
1994年第1期9-20,共12页
Engineering Mechanics
基金
国家自然科学基金
西安交通大学金属材料强度国家重点实验室研究项目
关键词
强度理论
结构力学
弹塑性
strength(failure) theory, elasto plastic constitutive model, limit analysis of structure, twin shear unified strength theory, twih shear elasto plastic model.
