On the Prediction of Failure in 6016 Aluminum Alloy Sheet by Gissmo Damage Model

doi:10.3901/JME.2019.18.053

Abstract

Abstract: The accurate prediction of fracture behavior is a challenge in metal sheets forming analysis. Experimental evidence shows that ductile fracture strongly depends on the stress state and strain path. As a stress state dependent damage model, the Gissmo includes incremental formulation for the description of material instability and localization, and nonlinear calculation of damage accumulation. It could be used to predict the failure of metal material under different load conditions. Six different shaped specimens which reflect different stress state of 6016 aluminum alloy sheets are performed tests. All the experimental processes are reproduced within the finite element simulation to calibrate the Gissmo damage model parameters. The stamping numerical model of hood inner validation results indicates that the Gissmo damage model predicted results is consistent with the experimental results. Moreover, compared with the traditional forming limit diagram, the Gissmo damage model is more suitable to accurately simulate and predict the fracture behavior of 6016 aluminum alloy sheets for several load paths.

Key words: 6016 aluminum alloy sheet, fracture, stress state dependence, Gissmo damage model

CLC Number:

TG146

LIANG Bin, ZHAO Yan, ZHAO Qingjiang, FAN Tiqiang, LI Yang. On the Prediction of Failure in 6016 Aluminum Alloy Sheet by Gissmo Damage Model[J]. Journal of Mechanical Engineering, 2019, 55(18): 53-62.

References

[1] 李永兵,马运五,楼铭,等. 轻量化多材料汽车车身连接技术进展[J]. 机械工程学报,2016,52(24):1-23. LI Yongbing,MA Yunwu,LOU Ming,et al. Advances in welding and joining processes of multi-material lightweight car body[J]. Journal of Mechanical Engineering,2016,52(24):1-23.
[2] 金飞翔,钟志平,李凤娇,等. 不同硬化模型对铝合金板冲压成形模拟结果的影响[J]. 机械工程学报,2017,53(22):57-66. JIN Feixiang,ZHONG Zhiping,LI Fengjiao,et al. Influence of different hardening model for the simulating results of the aluminum alloy sheet stamping[J]. Journal of Mechanical Engineering,2017,53(22):57-66.
[3] 袁序弟. 汽车用铝前景及铝材需求[J]. 资源再生,2005(10):15-17. YUAN Xudi. Prospects for aluminum for automobiles and demand for aluminum materials[J]. Resources Recycling,2005(10):15-17.
[4] 刘军. 某车用铝合金动态力学性能及其断裂失效行为研究[D]. 宁波:宁波大学,2017. LIU Jun. A6C16 dynamic mechanical property and fracture failure analysis of aluminum alloy for automobile[D]. Ningbo:Ningbo University,2017.
[5] QIAN Lingyun,FANG Gang,ZENG Pan,et al. Experimental and numerical investigations into the ductile fracture during the forming of flat-rolled 5083-O aluminum alloy sheet[J]. Journal of Materials Processing Technology,2015,220:264-275.
[6] BASARAN M. Stress state dependent damage modeling with a focus on the lode angle influence[D]. Aachen:Rheinisch-Westf Lischen Technischen Hochschule Aachen,2011.
[7] 康永林,孙英,王先进. 用新型摩擦装置测定薄板成形的摩擦系数[J]. 机械工程学报,1996,32(5):105-109. KANG Yonglin,SUN Ying,WANG Xianjin. Determination of friction coefficient of sheet forming by a new friction device[J]. Chinese Journal of Mechanical Engineering,1996,32(5):105-109.
[8] MATTIASSON K,JERGEUS J,DUBOIS P. On the prediction of failure in metal sheets with special reference to strain path dependence[J]. International Journal of Mechanical Sciences,2014,88:175-191.
[9] NEUKAMM F,FEUCHT M,BISCHOFF M. On the application of continuum damage models to sheet matel forming simulations[J]. Ibai Publishing,2008,(4):616-629.
[10] 祁爽,蔡力勋,包陈,等. 基于应力三轴度的材料颈缩和破断行为分析[J]. 机械强度,2015,182(6):1152-1158. QI Shuang,CAI Lixun,BAO Chen,et al. Analysis of necking and breaking behavior of materials based on stress triaxiality[J]. Mechanical Strength,2015,182(6):1152-1158.
[11] EFFELSBERG J,HAUFE A,FEUCHT M,et al. On parameter identification for the GISSMO damage model[C]//Proceedings of the 12th International LS-DYNA Users Conference,Dearborn,USA. 2012:1-10.
[12] MILLER W S,ZHANG L,BOTTEMA J,et al. Recent development in aluminum alloys for the automotive industry[J]. Materials Science and Engineering,2000,280(1):37-49.
[13] ANDRADE F,FEUCHT M,HAUFE A. On the prediction of material failure in LS-DYNA:A comparison between GISSMO and DIEM[C]//Proceedings of the 13th International LS-DYNA Users Conference,Detroit,USA. 2014:1-10.
[14] 张少雄,王利永,孔泉. 网格粗细对于有限元模态分析计算的影响[J]. 武汉理工大学学报,2006,28(5):92-94. ZHANG Shaoxiong,WANG Liyong,KONG Quan. Influence of grid thickness on finite element modal analysis calculation[J]. Journal of Wuhan University of Technology,2006,28(5):92-94.
[15] 郭怡晖,万鑫铭,赵岩,等. 基于变摩擦系数的铝合金覆盖件冲压成形模拟[J]. 塑形工程学报,2015,22(5):39-44. GUO Yihui,WAN Xinming,ZHAO Yan,et al. Numerical simulation of stamping of aluminum alloy hood inner panel based on variable coefficient of friction[J]. Journal of Plasticity Engineering,2015,22(5):39-44.
[16] 朱浩,朱亮,陈剑虹,等. 不同应力状态下铝合金变形及损伤机理的研究[J]. 稀有金属材料与工程,2007,36(4):597-601. ZHU Hao,ZHU Liang,CHEN Jianhong,et al. Study on deformation and damage mechanism of aluminum alloy under different stress states[J]. Rare Metal Materials and Engineering,2007,36(4):597-601.
[17] CHINZEI S,NAITO J. The numerical failure prediction by the damage model GISSMO in various materials of sheet metal[J]. Computers & Structures,2015,80(23):1771-1788.