间距对含中间层爆炸焊接影响的数值模拟

缪广红; 倪亚东; 魏正梅; 吴伟达; 田广阔

doi:10.21656/1000-0887.460147

间距对含中间层爆炸焊接影响的数值模拟

doi: 10.21656/1000-0887.460147

1. 安徽理工大学力学与光电物理学院，安徽淮南 232001
;2. 安徽理工大学土木建筑学院，安徽淮南 232001

基金项目:

国家自然科学基金（11902003）

详细信息

作者简介:
缪广红（1985—），男，博士，副教授，硕士生导师(通信作者. E-mail: miaogh@mail.ustc.edu.cn).

通讯作者:
缪广红（1985—），男，博士，副教授，硕士生导师(通信作者. E-mail: miaogh@mail.ustc.edu.cn).

中图分类号: O389
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- 文章访问数: 84
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- 被引次数: 0
出版历程
- 收稿日期: 2025-08-10
- 修回日期: 2025-08-27
- 网络出版日期: 2026-09-24
- 刊出日期: 2026-09-01

Numerical Simulation of Stand-Off Distance Effects on Explosive Welding With an Intermediate Layer

1. School of Mechanics and Optoelectronics Physics, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China;
2. School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui 232001, P.R. China

Funds:

The National Science Foundation of China(11902003)

摘要

摘要: 研究了间距对含中间层爆炸焊接的影响，使用ANSYS/LSDYNA有限元软件，分别采用任意LagrangeEuler算法（ALE法）与光滑粒子流体动力学有限元耦合算法（SPHFEM法）对商业纯钛（TP270C）和双相不锈钢（SUS821L1）以及中间层（SUS821L1）进行爆炸焊接过程的三维数值模拟.系统性分析了两种算法下复板在各间距（5 mm，10 mm，15 mm/2 mm）作用下的竖向位移、碰撞速度、碰撞压强和中间层塑性变形的规律.模拟结果表明：复板的竖向位移均大于基复板的间距，碰撞速度均落在爆炸焊接窗口以内，复板的碰撞速度、碰撞压强、中间层的塑性变形以及中间层所划分的复板动能和碰撞压强均随着间距的增加而增大.同时，三种间距在中间层的作用下均实现焊接成功，当间距为15 mm时爆炸焊接质量最高，与试验吻合.此外，本研究还基于药厚40 mm间距30 mm/2 mm与药厚38 mm间距55 mm/2 mm两个对照组进行了数值模拟.模拟结果证明当复板处于加速阶段时，可采用减少炸药药厚与增加复板与中间层间距的方法来达到与原试验相同的焊接效果，这样既保证了焊接质量，又降低了爆炸焊接试验的成本，为爆炸焊接试验提供理论指导.
- 间距 /
- 爆炸焊接 /
- 中间层 /
- ALE法 /
- SPH-FEM法
Abstract: the stand-off distance effects on explosive welding with an interlayer were investigated, with the ANSYS/LS-DYNA finite element software. The 3D numerical simulations of the explosive welding process were conducted for the commercially pure titanium (TP270C), the duplex stainless steel (SUS821L1), and the interlayer (SUS821L1), with 2 distinct algorithms: the arbitrary Lagrangian-Eulerian (ALE) method and the smoothed particle hydrodynamics-finite element method (SPH-FEM) coupling algorithm. The behaviors of the flyer plate under varying stand-off distances (5 mm, 10 mm, 15 mm/2 mm), including the vertical displacement, the collision velocity, the collision pressure, and the plastic deformation of the interlayer, were systematically analyzed across both algorithms. The simulation results show that, the vertical displacement of the flyer plate exceeds the stand-off distance between the base plate and the flyer plate, and the collision velocity falls within the explosive welding window. The collision velocity, the collision pressure of the flyer plate, the plastic deformation of the interlayer, the partitioned kinetic energy of the flyer plate and the collision pressure by the interlayer, all increase with the stand-off distance. All 3 stand-off distances achieve successful welding under the action of the interlayer. The highest explosive welding quality occurs at a stand-off distance of 15 mm, which matches the experimental results. Furthermore, numerical simulations based on 2 control groups’ explosive thicknesses: 40 mm with stand-off distances of 30 mm/2 mm, and 38 mm with stand-off distances of 55 mm/2 mm, were performed. The results demonstrate that, reducing the explosive thickness and increasing the stand-off distance between the interlayer and the flyer plate during the acceleration phase achieve welding effects identical to those of the original experiments. This work ensures welding quality, reduces the cost of explosive welding experiments, and provides theoretical guidance for engineering applications.
- stand-off distance /
- explosive welding /
- intermediate layer /
- ALE algorithm /
- SPH-FEM algorithm

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参考文献(25)

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