GTN细观损伤模型的发展与应用综述

doi:10.3901/JME.2024.02.062

机械工程学报 ›› 2024, Vol. 60 ›› Issue (2): 62-80.doi: 10.3901/JME.2024.02.062

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GTN细观损伤模型的发展与应用综述

陈鑫¹, 杨立飞¹, 于雪², 龚颖颖¹

1. 吉林大学汽车仿真与控制国家重点实验室长春 130022;
2. 大众汽车(安徽)有限公司合肥 230601

收稿日期:2023-01-25 修回日期:2023-07-16 出版日期:2024-01-20 发布日期:2024-04-09
通讯作者: 杨立飞(通信作者)，男，1996年出生，博士研究生。主要研究方向为车身结构轻量化及连接接头力学性能。E-mail：yanglf21@mails.jlu.edu.cn
作者简介:陈鑫，男，1974年出生，博士，教授，博士研究生导师。主要研究方向为汽车车身结构轻量化设计和汽车NVH分析与控制。E-mail：cx@jlu.edu.cn
于雪，女，1973年出生，硕士，高级工程师。主要研究方向为汽车车身结构轻量化设计。E-mail：xue.yu@volkswagen-anhui.com
龚颖颖，女，1998年出生，硕士研究生。主要研究方向为车身结构力学性能分析。E-mail：yygong21@mails.jlu.edu.cn
基金资助:
国家重点研发计划资助项目(2022YFB250350-3)。

Review of the Progress and Application on the GTN Meso-damage Model

CHEN Xin¹, YANG Lifei¹, YU Xue², GONG Yingying¹

1. State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022;
2. Volkswagen (Anhui) Automotive Company Limited, Hefei 230601

Received:2023-01-25 Revised:2023-07-16 Online:2024-01-20 Published:2024-04-09

摘要/Abstract

摘要： 细观损伤力学分析广泛应用于韧性金属损伤、断裂、成形极限预测等领域。Gurson-Tvergaard-Needleman(GTN)损伤模型是细观损伤力学领域最为重要的经典模型之一。该模型将材料的细观孔洞演化过程与宏观力学行为相结合，描述材料在外部载荷作用下的细观损伤机理及宏观损伤失效行为。大量试验研究表明，在剪切载荷为主的应力状态下，材料内部孔洞体积分数并没有明显增加，但依然会发生失效。由于传统GTN模型只考虑孔洞体积分数变化对金属材料损伤行为的影响，使得GTN模型并不适合中、低应力三轴度下的损伤及断裂预测，因此多位学者都对原始GTN模型进行了修正。概述细观损伤力学和GTN模型的发展历程，并分析GTN模型的几种典型修正方法及其适用范围和优劣势，总结GTN模型参数标定方法。将GTN细观模型在工业领域中的应用分类整理，展望GTN模型的发展趋势，可为今后GTN模型的研究与应用提供参考。

关键词: 细观损伤, GTN模型, 损伤力学, 塑性成形, 剪切修正

Abstract: Meso-damage mechanics analysis is widely used in the fields of ductile metal damage, fracture and forming limit prediction. The Gurson-Tvergaard-Needleman(GTN) damage model is one of the most essential classical models in the field of meso-damage mechanics. The model combines the micro-void evolution process with the macroscopic mechanical behavior to describe materials’ meso-damage mechanism and macroscopic damage failure behavior under external loads A large number of experimental studies have shown that under the stress state dominated by shear loads, the void volume fraction in the material does not increase significantly, but failure still occurs. Because the traditional GTN model only considers the influence of void volume fraction on the damage behavior of metal materials, the GTN model is unsuitable for damage and fracture prediction under medium and low stress triaxiality. Therefore, many scholars have modified the original GTN model. The development of mesoscopic damage mechanics and GTN model is summarized, several typical correction methods of GTN model are analyzed and their applicable scope and advantages and disadvantages are summarized, and the parameter calibration methods of GTN model are summarized. The application of the GTN mesoscopic model in the industrial field is classified and sorted out, and the development trend of the GTN model is forecasted, which can provide a reference for future researches and applications of the GTN model.

Key words: meso damage, GTN model, damage mechanics, plastic forming, shear modified

中图分类号:

O344

陈鑫, 杨立飞, 于雪, 龚颖颖. GTN细观损伤模型的发展与应用综述[J]. 机械工程学报, 2024, 60(2): 62-80.

CHEN Xin, YANG Lifei, YU Xue, GONG Yingying. Review of the Progress and Application on the GTN Meso-damage Model[J]. Journal of Mechanical Engineering, 2024, 60(2): 62-80.

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GTN细观损伤模型的发展与应用综述

Review of the Progress and Application on the GTN Meso-damage Model

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