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本文通过分析硬度试验过程金属的流动状况,从理论和实验的角度论证了硬度与有效应力和有效应变之间的定量关系,从而将定性硬度法扩展为定量硬度法。利用研究所得的定量硬度法分析了平塑压圆柱体(D/H=1)的变形分布规律,结果证实了定量硬度法的正确性和实用性。
In this paper, by analyzing the flow of metal during hardness test, the quantitative relationship between hardness and effective stress and effective strain is demonstrated theoretically and experimentally, and then the qualitative hardness method is extended to quantitative hardness method. The deformation and distribution of flat plastic cylinder (D / H = 1) were analyzed by the quantitative hardness method. The results confirmed the correctness and practicability of the quantitative hardness method.