塑性应变比与应变硬化指数是评价板料成形性能的两个重要参数。
Thirdly, plastic strain ratio and strain hardening index are the two key parameters of material's formability.
屈服强度、抗拉强度、加工硬化指数和塑性应变比厚向各向异性降低，塑性应变比平面各向异性增大；
Yield strength and ultimate tensile strength, work hardening exponent and normal anisotropy of plastic strain ratio decrease but planner anisotropy of plastic strain ratio increases.
塑性拘束较大的直缺口试样(i)的整体屈服载荷及缺口前的应力、应变和应变率比塑性拘束较小的V缺口试样(V)大。
The general yield load, stress and strain rate ahead of notches of I specimens with larger plastic constraint is larger than that of V specimens with small plastic constraint.
并对随形状改变比能参量S变化的应变释放系数塑性修正公式进行了推广。
The test of the strain release coefficients was simulated, and the energy parameter S was obtained based on the FEM analysis resu.
随着应变时效温度升高，强度和硬度增加，塑性和韧性下降，屈强比呈升高的趋势，形变强化指数降低。
With the strain aging temperature increasing, strength and hardness increases, plasticity and toughness decreases, yield ratio has the ascending trend, hardening index decreases.
随着应变时效温度升高，强度和硬度增加，塑性和韧性下降，屈强比呈升高的趋势，形变强化指数降低。
With the strain aging temperature increasing, strength and hardness increases, plasticity and toughness decreases, yield ratio has the ascending trend, hardening index decreases.
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