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通过对大量横穿简单剪切的韧性剪切带剪应变曲线数学特征的分析研究,提出剪切带剪应变函数γ(x)和扭距函数s(x)的数学表达式。γ(x)的数学表达式不是从理论上推导出来的,但横穿剪切带各点实测剪应变值都能满足或近似满足γ(x)的表达式。剪应变函数γ(x)和扭距函数s(x)表达式的确定对研究剪切带的变形有重要意义。
Based on the analysis of the mathematical characteristics of the shear strain curves of a large number of shear straps crossing simple shears, mathematical expressions of shear strain function γ (x) and torque function s (x) are proposed. The mathematical expression of γ (x) is not derived theoretically, but the value of γ (x) satisfies or approximates the measured value of shear strain at each point across the shear band. The determination of the shear strain function γ (x) and the torque function s (x) is of great significance for studying the deformation of the shear band.