An increasing demand exists within the automotive industry to utilize aluminum alloy sheets because of their excellent strength-weight ratio and low emissions, which can improve fuel economy and reduce environmental pollution. High-speed automobile impactions are complicated and highly nonlinear deformation processes. Thus, in this paper, a Gurson-Tvergaard-Needleman (GTN) damage model is used to describe the damage behavior of high-speed electromagnetic impaction to predict the fracture behavior of 5052-O aluminum alloy under high-speed impaction. The parameters of the GTN damage model are obtained based on high-speed electromagnetic forming experiments via scanning electron microscopy. The high-speed electromagnetic impaction behavior process is analyzed according to the obtained GTN model parameters. The shape of the high-speed electromagnetic impaction in the numerical simulations agrees with the experimental results. The analysis of the plastic strain and void volume fraction distributions are analyzed during the process of high-speed impact, which indicates the validity of using the GTN damage model to describe or predict the fracture behavior of high-speed electromagnetic impaction.

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5052o aluminum alloy environmental emissions scanning electron microscopy fracture behavior plastic strain void volume fraction distributions damage behavior of highspeed electromagnetic impaction nonlinear deformation automobile impactions gursontvergaardneedleman gtn damage model

Fei Feng,Jianjun Li,Peng Yuan,Qixian Zhang,Pan Huang,Hongliang Su,Rongchuang Chen,.Application of a GTN Damage Model Predicting the Fracture of 5052-O Aluminum Alloy High-Speed Electromagnetic Impaction. 8 (10),.

Fei Feng,Jianjun Li,Peng Yuan,Qixian Zhang,Pan Huang,Hongliang Su,Rongchuang Chen,"Application of a GTN Damage Model Predicting the Fracture of 5052-O Aluminum Alloy High-Speed Electromagnetic Impaction" 8

Fei Feng,Jianjun Li,Peng Yuan,Qixian Zhang,Pan Huang,Hongliang Su,Rongchuang Chen,"Application of a GTN Damage Model Predicting the Fracture of 5052-O Aluminum Alloy High-Speed Electromagnetic Impaction"