摘要
本文在提出新的力学模型的基础上,考虑全部应力分量及材料强度性质在π平面和拉伸及压缩子午线上的不同变化规律,得出适用于描述材料在全部复杂应力状态下破坏规律的一个新的普遍形式的强度理论。将其角隅光滑化,得出双剪应力五参数准则角隅模型。结果表明,近年来国内外提出的一些著名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 a new mechanical model, a new general strength theory is proposed in this paper, which is adaptable to describe the failure law of material under complex stress state. In which, all the stress components of this model and the different variation law of the strength characteristics of the material on the x plane and tensile, compressive meridian are considered. A new Twin Shear Stress Five-Parameters Criterion whose angular points are smoothed is obtained. The study shows that some famous strength theories and multiparameters criterions presented at home and abroad in recent years are the special cases of the strength theory proposed in this paper.
出处
《土木工程学报》
EI
CSCD
北大核心
1990年第1期34-40,共7页
China Civil Engineering Journal
基金
国家自然科学基金
