延性损伤演化的统一模型

A Unified Model of Ductile Damage Evolution

本文基于连续介质力学（ＣＤＭ），提出了延性损伤演化的统一模型。新模型包含了已有的线性模型和非线性模型，不仅能描述损伤的前期演变，还可以反映后期损伤的加速性质。数值计算与试验结果的比较表明了新模型的有效性。

Based on the continuum damage mechanics(CDM),a unified model of ductile damage evolution is proposed.The new model includes linear and nolinear model,which can discribe not only the priorstage of damage evolution,but also the acceleration characteristic of the poststage of damage evolution.Comparisons of numerical results and the experimental results show the effectiveness of the new model.