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- Title
Research on the Large Plastic Deformation Damage and Shock Resistance of 7055 Aluminum Alloy.
- Authors
Zhang, Ping; Wang, Youqiang; Luo, Heng; Long, Shenwen; Wei, Cong
- Abstract
We used the split Hopkinson dynamic impact test and ABAQUS finite element simulation to study the damage mechanism of dynamic impacts on the 7055-T4 aluminum alloy. The results show that the energy absorption phenomenon occurs when the dynamic impact temperature is 220°C. There is a clear positive correlation between the size of the precipitated phase and the dynamic impact temperature. The regression effect of the 7055-T4 aluminum alloy is most obvious when the dynamic impact temperature is 320°C. The adiabatic temperature rise model in the dynamic impact shear zone and the damage model considering the adiabatic temperature increase are established. Moreover, the above model has high accuracy and is verified by projectile impact simulation.
- Subjects
ALUMINUM alloys; MATERIAL plasticity; ADIABATIC temperature; DAMAGE models; IMPACT testing
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2019, Vol 71, Issue 7, p2380
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-019-03477-w