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采用动力学有限元分析软件ANSYS/LS-DYNA对316L不锈钢靶板在脉宽为纳秒量级的强激光诱导的冲击波作用下的变形速度进行了数值模拟,建立了适用于高压高应变率条件下的有限元模型,并将数值模拟得到的速度曲线与前人实验结果进行了比较,验证了模型的正确性。此外,靶板的变形速度随冲击波压强的增加而增大,随靶板厚度的增加而减小。模拟结果对研究激光冲击成形、靶板层裂以及侵彻等过程具有参考意义。
The finite element analysis software ANSYS / LS-DYNA was used to simulate the deformation velocity of 316L stainless steel target under the intense laser-induced shock wave with the pulse width of nanosecond. The method was applied to high strain rate and high strain rate Under the finite element model, the speed curve obtained by numerical simulation is compared with the previous experimental results to verify the correctness of the model. In addition, the deformation speed of the target plate increases with the increase of the shock wave pressure, and decreases with the increase of the target thickness. The simulation results have reference significance for the research of laser impact forming, target layer dehiscence and penetration process.