缪广红,朱志强,周大鹏,等.基于不同算法的Ti/SS316爆炸焊接数值模拟研究[J].精密成形工程,2024,16(4):53-60.
MIAO Guanghong,ZHU Zhiqiang,ZHOU Dapeng,et al.Numerical Simulation of Ti/SS316 Explosive Welding Based on Different Algorithms[J].Journal of Netshape Forming Engineering,2024,16(4):53-60. |
| 基于不同算法的Ti/SS316爆炸焊接数值模拟研究 |
| Numerical Simulation of Ti/SS316 Explosive Welding Based on Different Algorithms |
| 投稿时间：2024-01-04 |
| DOI：10.3969/j.issn.1674-6457.2024.04.007 |
| 中文关键词: 爆炸焊接 数值模拟 SPH-FEM耦合法 ALE算法 间隙 |
| 英文关键词: explosive welding numerical simulation SPH-FEM coupling method ALE algorithm clearance |
| 基金项目:国家自然科学基金(11902003);安徽省重点研究与开发计划(2022a05020021) |
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| 中文摘要: |
| 目的 研究不同基复板间隙对爆炸焊接质量的影响，对钛(Ti)/不锈钢(SS316)的爆炸焊接过程进行数值模拟研究。方法 利用ANSYS/LS-DYNA有限元软件，结合光滑粒子流体动力学-有限元耦合法(SPH-FEM耦合算法)和拉格朗日-欧拉耦合法(ALE算法)，对钛(Ti)/不锈钢(SS316)爆炸焊接过程进行三维数值模拟，通过不同算法得到不同基复板间隙下的碰撞速度、碰撞压力及碰撞角，并将模拟结果与试验及理论计算结果进行对比。结果 当间隙为5、10、15 mm时，SPH-FEM耦合算法和ALE算法的复板碰撞速度均落在爆炸焊接窗口内，表明纯钛(Ti)和不锈钢(SS316)均能成功实现焊接，没有脱落与鼓包。与SPH-FEM耦合算法相比，ALE算法下的碰撞速度、碰撞压力和碰撞角的模拟结果和理论计算结果更加吻合，可信度更高。结论 ALE算法的模拟结果与试验结果吻合，且与理论计算结果的误差更小，表明ALE算法用于纯钛(Ti)和不锈钢(SS316)爆炸焊接是有效的。 |
| 英文摘要: |
| The work aims to study the effect of different base laminate clearance on the quality of explosive welding, and conduct numerical simulation on the explosive welding process of titanium (Ti)/stainless steel (SS316). A three-dimensional numerical simulation of the explosive welding process of titanium (Ti)/stainless steel (SS316) was carried out by using ANSYS/LS-DYNA Finite Element software combined with smooth particle hydrodynamics-finite element coupling method (SPH-FEM coupling algorithm) and Lagrangian-Euler coupling method (ALE algorithm). The collision velocity, collision pressure and collision angle under different base laminate clearance were obtained by different algorithms, and the simulation results were compared with the experimental and theoretical calculation results. At the clearance of 5, 10 and 15 mm, the collision velocities of the SPH-FEM coupling algorithm and the ALE algorithm fell within the explosive welding window, indicating that both pure titanium (Ti) and stainless steel (SS316) could be successfully welded without falling off and bulging. Compared with the SPH-FEM coupling algorithm, the simulation results of collision velocity, collision pressure and collision angle under the ALE algorithm were more consistent with the theoretical calculation results, and the reliability was higher. The simulation results of the ALE algorithm are in good agreement with the experimental results, and the error with the theoretical calculation results is smaller. The effectiveness of the ALE algorithm for explosive welding of pure titanium (Ti) and stainless steel (SS316) is demonstrated. |
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