A finite element model for the prediction of Advanced High Strength Steel spot welds fracture

被引：28
作者：
Dancette, S. [1 ]
Fabregue, D. [1 ]
Estevez, R. [2 ]
Massardier, V. [1 ]
Dupuy, T. [3 ]
Bouzekri, M. [3 ]
机构：
[1] Univ Lyon, INSA Lyon, MATEIS UMR CNRS 5510, F-69621 Villeurbanne, France
[2] Univ Grenoble, Lab SIMaP, UMR CNRS 5266, Grenoble INP,UJF, F-38402 St Martin Dheres, France
[3] ArcelorMittal R&D, Automot Prod, F-57283 Maizieres Les Metz, France
来源：
ENGINEERING FRACTURE MECHANICS | 2012年 / 87卷
关键词：
Resistance spot welding; Cross Tension; Finite elements; Damage; Fracture; MECHANICAL-BEHAVIOR; FAILURE-MECHANISM; CRACK-GROWTH; PLUG FAILURE; RESISTANCE; SHEAR; PARAMETERS; SPECIMENS; JOINTS; SIZE;
D O I：
10.1016/j.engfracmech.2012.03.004
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A finite element model has been developed for the simulation of resistance spot welds behavior in Cross Tension. The model is able to capture the competition between semi-brittle fracture at the faying surface and ductile failure at the weld boundary. For this purpose, ductile damage and fracture are considered in the different weld zones in addition to a cohesive zone at the faying surface and an evaluation of the Rice integral (J) at the notch tip. The model is run for different weld configurations made of TRIP780 steel. It reproduces the proper level of load at the onset of cracking and predicts the governing damage mechanism leading to final fracture as a function of the geometrical features of the welds. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：48 / 61
页数：14
相关论文
共 60 条
[1]  
American Welding Society, 2007, D81 AWS
[2]  
Anderson T., 1995, FRACTURE MECH FUNDAM, P453
[3]  
[Anonymous], WELD WORLD
[4]  
[Anonymous], 2001, 14272 ISO
[5]  
[Anonymous], 2002, 14273 ISO
[6]  
[Anonymous], 2004, 182782 ISO
[7]  
[Anonymous], 2002, NASA TECH PAP
[8]  
[Anonymous], ABAQUS USERS MANUAL
[9]   Cohesive-zone modelling of the deformation and fracture of spot-welded joints [J].
Cavalli, MN ;
Thouless, MD ;
Yang, QD .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2005, 28 (10) :861-874
[10]  
Chao YJ, 2003, SCI TECHNOL WELD JOI, V8, P133, DOI 10.1179/136217103225008955
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