Identification of GTN model parameters by application of response surface methodology

被引：24
|
作者：
Abbasi, M. [1 ]
Ketabchi, M. [1 ]
Izadkhah, H. [1 ]
Fatmehsaria, D. H. [1 ]
Aghbash, A. N. [1 ]
机构：
[1] Amirkabir Univ Technol, Tehran, Iran
来源：
11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11) | 2011年 / 10卷
关键词：
GTN model; Forming limit diagram; Response surface methodology; Simulation; PREDICTION;
D O I：
10.1016/j.proeng.2011.04.070
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A reliable prediction of ductile failure in metals is still a wide-open matter of research. Among different models, Gurson-Tvergaard-Needleman (GTN) has been used extensively. One major issue is the accurate identification of GTN model parameters, which it is not possible to perform experiments for their evaluation. In the present paper a novel inverse procedure aimed to estimate the material parameters of the GTN porosity-based plastic damage model by means of RSM method is represented. The results showed good agreement between experimental and predicted forming limit diagrams when determined GTN parameters were utilized. FE-simulation by means of Abaqus software used to predict FLDs. (C) 2011 Published by Elsevier Ltd. Selection and peer-review under responsibility of ICM11
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页数：6
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