论文部分内容阅读
广义Mises准则满足八面体面上的剪应力和正应力之比为常数,SMP(Spatially Mobilized Plane)准则满足空间滑动面上的剪应力和正应力之比为常数,那么对于包含或逼近现有非线性强度准则的广义非线性强度,在物理空间中应存在一平面,且满足该平面上的剪应力和正应力之比为常数.为此,提出了介于八面体面和空间滑动面之间的广义滑动面,与广义非线性强度相对应,广义滑动面上的剪应力与正应力之比为常数,并给出了广义滑动面上应力比的表达式,及主应力空间中的强度面形状.通过深入分析和对比,表明了广义非线性强度和广义滑动面在材料强度描述上的一致性。
The generalized Mises criterion satisfies that the ratio of shear stress to normal stress on the octahedral surface is a constant, and the SMP (Spatially Mobilized Plane) criterion satisfies that the ratio of shear stress to normal stress on the sliding surface of a space is a constant. Therefore, for a solution containing or approximating the existing nonlinear strength Generalized nonlinear strength of the criterion, a plane should exist in physical space, and the ratio of shear stress to normal stress in this plane should be a constant. For this reason, a generalized sliding between octahedral planes and spatial sliding planes Surface, corresponding to generalized nonlinear strength, the ratio of shear stress to normal stress on the generalized sliding surface is constant, and the expression of stress ratio on the generalized sliding surface and the shape of the strength surface in the main stress space are given. In-depth analysis and comparison show that the generalized nonlinear strength and the generalized sliding surface in material strength description of the consistency.