塑性增量理论，也称塑性流动理论(plastic incr-ement theory) 是在一般加载条件下，金属塑性变形过程中应力同应变增量或应变速率之间关系的物性方程——本构方程，也是金属塑性加工力学的重要基础方程之一。
... ice-crystal theory 冰晶学说 incremental theory of plasticity 塑性增量理论 infiltration theory 下渗理论,入渗理论 ...
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该方法基于塑性增量理论，应用塑性成形过程的体积不变假设和弯曲过程的平截面假设。
The proposed method is based on the incremental theory, volume invariance and planar cross_section are assumed.
采用塑性增量理论，建立了波纹管液压胀形的应力、应变数值计算方法，解决了波纹管液压胀形工艺的理论计算问题。
By plasticity increment theory, the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward.
通过增量理论弹塑性有限元计算，对比分析了带和不带加载孔ct试样J积分之间的差异。
The differences of J-integral between CT specimens with and without loading holes have been compared and analyzed by means of incremental theory elastic - plastic finite element calculations.
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