In this study, an analytical model based on Hertzian contact theory and the Neuber plasticity rule is established to predict the residual stresses generated by laser shock peening (LSP). The model was validated using experimental data. A database that connects LSP parameters with residual stress can be established, and the LSP parameters that result in desirable residual stress characteristics subjected to certain constraints can be obtained by searching the database, enabling the effects of the LSP parameters on the residual stress distribution to be studied. The proposed multi-objective optimization method is expected to be of helpful for guiding LSP experiments.

在这项研究中，建立了一个基于赫兹接触理论和 Neuber 塑性规则的分析模型来预测激光冲击喷丸 (LSP) 产生的残余应力。使用实验数据验证了该模型。可以建立连接LSP参数和残余应力的数据库，通过数据库检索得到在一定约束条件下产生理想残余应力特性的LSP参数，从而可以得到LSP参数对残余应力分布的影响。学习了。所提出的多目标优化方法有望对指导 LSP 实验有所帮助。