摘要
本文在作者1962年提出的普遍形式强度理论和1983年的广义双剪应力强度理论的基础上,进一步考虑材料强度性质在π平面和拉伸子午线及压缩子午线上的不同变化规律,得出了适用于描述岩土类材料破坏规律的双剪应力四参数准则和双剪应力五参数准则.其特例可适用于金属类材料.研究结果表明,近年来国内外提出的一些著名的强度理论和多参数准则可以作为本文结果的特例或逼近.
Based on the general strength theory proposed by Yu Maohong in 1962 as follows F=f(τ)+ Aσ_m+ Bσ_m+…+C=0 and consider the generalized twin shear stress criterion which was published by Yu-He-Song in 1985 at 《Scientia Sinica (Sciences in China) Series A》,a new general strength theory is proposed as follows: F=τ_(13)+τ_(12)+β(σ_(13)+σ_(12))+A_1σ_m+B_1σ_m^2=C When F≥F′(generalized tension) F′=τ_(13)+τ_(23)+β(σ_(13)+σ_(23))+A_2σ_m+B_2σ_m^2=C When F≤F′ (generalized compression) This new theory is suitable for the variety of failure characteristics in π plane,tension meridian plane and compression meridiam plane,and is in good agreement with experimental data of rock-soil-concrete likely materials.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1989年第2期9-15,共7页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金
关键词
强度理论
双剪应力
参数准则
strength theory
plasticity
mechanical models for soils and rocks
