摘要
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 dynamic finite element software ANSYS/LS-DYNA is used to numerically simulate the deformation velocity of 316L stainless steel target after the influence of shock waves induced by intense lasers with pulse duration of nanosecond scale, and a finite element model suitable under the high pressure and high strain rate conditions is established. The velocity curves obtained from the numerical simulation are compared with the previous experimental results and the validity of the above model is confirmed. In addition, the deformation velocity increases with the increase of the shock wave pressure and decreases with the increase of the target plate thickness. These simulation results provide a reference for the study of those processes, such as laser shock forming, spallation and penetration.
作者
纪看看
张兴权
邓磊
黄志来
段士伟
戚晓利
陈彬
Ji Kankan Zhang Xingquan Deng Lei Huang Zhilai Duan Shiwei Qi Xiaoli Chen Bin(School of Mechanical Engineering, Anhui University of Technology, Maanshan, Anhui 243002, China State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China School of Management Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243002, China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2016年第11期104-111,共8页
Chinese Journal of Lasers
基金
国家自然科学基金(51675002)
华中科技大学材料成形与模具技术国家重点实验室开放基金(P2017-007)
安徽工业大学校青年教师科研基金(QZ201518)
安徽工业大学研究生创新研究基金(2015044)
关键词
激光技术
激光冲击
316L不锈钢
速度
压强
厚度
laser technique
laser shocking
316L stainless steel
velocity
pressure
thickness
