塑性全量理论,塑性力学中用全量应力和全量应变表述弹塑性材料本构关系的理论,又称塑性变形理论。是描述简单加载条件下金属塑性变形过程中应变和应力之间关系的物性方程(本构方程)。它是简单加载条件下,增量理论的简化方程,所以是塑性加工力学中最简单的本构方程。 简单加载 也称比例加载,是指加载过程中物体内任一点的应力分量均按比例增加。
基于全量塑性理论及膜应变假定,推导了轴对称情况的解析计算模型;
Then an analytical model for axisymmetric case is developed based on the total strain theory and membrane assumption.
采用全量理论和幂级数形式的应力一应变曲线,导出了弹塑性强化材料旋转园盘的渐近解。
Based on the stress - strain curve uith Power series, the asymptotic nalytical solution of rotating disks uith strain-hardening is obtained from the total strain theory.
在该算法中,采用了全量塑性理论及膜应变假定,并考虑了板材的厚向各向异性,可以直接从所需的翻边高度计算出初始坯料的尺寸。
With the total strain theory and membrane assumption and taking the normal anisotropy of sheet metal into consideration, initial blank size can be directly calculated from desired flanging height.
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