r又叫 塑性应变比(plastic strain ratio),是表征金属薄板、薄带 的深压延性能的重要参数,与拉伸试样变形后标距内的 长度和宽度尺寸有关【5】。
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Determination of plastic strain ratio 测定塑料应力
plastic strain ratio r 塑性应变比r值
plastic strain ratio-r 塑性应变比r值
plastic strain ratio r value 塑性应变比
plastic strain ratio value r 塑性应变比值
Thirdly, plastic strain ratio and strain hardening index are the two key parameters of material's formability.
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。
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.
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；
The permeability coefficient is dependent on the plastic shearing strain (ratio).
渗透系数依赖于塑性剪切应变(率)。
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