文章基本信息

标题：Ductile failure analysis of high strength steel in hot forming based on micromechanical damage model
本地全文：下载
作者：Liang Ying ; Liang Ying ; Wenquan Liu 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2016
卷号：80
页码：1-5
DOI：10.1051/matecconf/20168003002
语种：English
出版社：EDP Sciences
摘要：The damage evolution of high strength steel at elevated temperature is investigated by using the Gurson-Tvergaard-Needleman (GTN) model. A hybrid method integrated thermal tensile test and numerical technique is employed to identify the damage parameters. The analysis results show that the damage parameters are different at different temperature as the variation of tested material microstructure. Furthermore, the calibrated damage parameters are implemented to simulate a bugling forming at elevated temperature. The experimental results show the availability of GTN damage model in analyzing sheet formability in hot forming.