Abstract Meso-damage mechanics differs from continuous damage mechanics, which pays more attention to the evolution of meso-structure in materials. It combines physical and mechanical processes to link meso-structure evolution of materials to their macro-mechanical behavior through some average method. The development of meso-damage mechanics provides an alternative method for describing the damage behavior of materials and a new research topic in plastic damage mechanics. Therefore, this paper reviews the development of plastic meso-damage mechanics and illustrates the development of meso-damage mechanics with the most representative and application prospect Gurson-Tvergaard-Needleman (GTN) model as an example. The development of GTN meso-damage mechanics model has undergone developing from the initial meso-voids volume evolution equation to the establishment of the meso-damage constitutive equation and the vigorous development of various improved GTN damage models. The improvement and optimization of GTN meso-damage model in the shape of micro-voids and shear correction, and its important position and application status in meso-damage mechanics are emphatically discussed in this paper. The purpose of this review is aimed at providing an insight into the advantages of meso-damage mechanics model and some problems in the existing research background of its application, and to present the future development prospects, which provides great potential for further research and innovation of plastic meso-damage mechanics of materials.

中文翻译：

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塑性细观损伤力学理论与应用综述

摘要 细观损伤力学不同于连续损伤力学，它更关注材料中细观结构的演化。它结合物理和机械过程，通过某种平均方法将材料的细观结构演变与其宏观力学行为联系起来。细观损伤力学的发展为描述材料的损伤行为提供了一种替代方法，也是塑性损伤力学的一个新研究课题。因此，本文回顾了塑性细观损伤力学的发展历程，并以最具代表性和应用前景的Gurson-Tvergaard-Needleman（GTN）模型为例说明细观损伤力学的发展历程。GTN细观损伤力学模型的发展经历了从最初的细观空隙体积演化方程到细观损伤本构方程的建立和各种改进的GTN损伤模型的蓬勃发展。重点讨论了GTN细观损伤模型在微孔形态和剪切修正方面的改进和优化，及其在细观损伤力学中的重要地位和应用现状。本综述的目的旨在洞察细观损伤力学模型的优点及其应用现有研究背景中存在的一些问题，并提出未来的发展前景，为进一步研究和创新提供巨大潜力。材料的塑性细观损伤力学。