本文讨论了各向异性损伤力学的基本概念并介绍了以应变等效性假设为基础的Lemaitre模型和以能量等效性假设为基础的Cordebois模型。在此基础上作者导出了两种损伤模型的损伤能释放率的表达式。文中作者定义了一维损伤时弹性材料板单元的一些损伤定义,并导出了两种模型在一维损伤时损伤能释放率Y_2的简单表达式,从而为复合材料层板损伤测量的实验研究提供了理论基础, This paper discusses the basic concepts of anisotropic damage mechanics and introduces the Lemaitre model based on the strain equivalence assumption and the Cordebois model based on the energy equivalence assumption. Based on this, the authors derive the expression of damage release rate of two damage models. In this paper, the authors define some damage definitions for elastic plate elements in one-dimensional damage, and derive simple expressions for the damage release rate Y_2 of the two models in one-dimensional damage so as to provide experimental evidence for the damage measurement of composite laminates The theoretical basis,