Gurson-Tvergaard模型的发展及在韧性断裂分析中的应用  

Development of the Gurson-Tvergaard Model and Application in the Analysis of Ductile Fracture

作　　者：张凯[1] 荆洪阳[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《压力容器》2004年第9期37-43,共7页Pressure Vessel Technology

摘　　要：介绍了G -T模型提出的历史背景及其发展过程 ,并对G -T模型在韧性断裂分析中的应用进行了阐述 ,还介绍了国内外研究状况及最新发展。对G -T模型在应用中所表现出的优缺点进行了探讨 ,并展望其扩大应用的前景 ,利用基于G -T模型所开发出的软件 ,对韧性断裂的过程进行更加准确的模拟和预测。The article described the background in which the G-T model is put forward and the process of development. It also introduced the applications of the G-T model in the analysis of the ductile fracture, and the research status inside and out of the nation. It described the virtues and shortcomings of the G-T model and improved the foreground in the application. The new produced soft wares which based on the G-T model will simulate and predict the process of ductile fracture more exactly.

关 键 词：Gurson-Tvergaard模型 韧性断裂 数值模拟 微观空穴 

分 类 号：TG111.91[金属学及工艺—物理冶金]