SHU Bochao, LI Weidong,HUANG Xia, CHE Zhigang. Finite Element Modeling of Mechanical Response of Aluminum Alloy Materials by Laser Shock Peening. Aeronautical Manufacturing Technology, 2020, 63(3): 59-66.
SHU Bochao, LI Weidong,HUANG Xia, CHE Zhigang. Finite Element Modeling of Mechanical Response of Aluminum Alloy Materials by Laser Shock Peening. Aeronautical Manufacturing Technology, 2020, 63(3): 59-66. DOI: 10.16080/j.issn1671-833x.2020.03.059.
In order to study the dynamic mechanical properties and residual stress distribution of laser shock peening
the finite element modeling and numerical simulation of 2024–T351 laser shock peening were carried out based on ABAQUS software. The PVDF piezoelectric sensor was used to measure the spatiotemporal distribution data of laser impact force
and the dynamic pressure model of laser shock peening was established. The one-dimensional plate impact test of light-gas gun was used to verify the mechanical constitutive model of aluminum alloy 2024–T351 under ultra-high strain rate. The complex process path loading was realized based on the VDLOAD subroutine
and the nanosecond scale mechanical response characteristics during laser shock were obtained. The finite element simulation of laser shock peening was conducted
and the distribution law of residual stress in the material was analyzed. The surface residual stress test had been proceeded by drilling method. The accuracy of residual stress prediction was proven
which verified the accuracy of the established laser shock peening finite element model.