Numerical Simulation of Stand-Off Distance Effects on Explosive Welding Quality of Titanium-Stainless Steel

MIAO Guanghong; WU Weida; ZHOU Dapeng; DONG Jilei; WEI Zhengmei; CHEN Long; ZHU Zhiqiang

doi:10.21656/1000-0887.450301

Volume 46 Issue 5

May 2025

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Article Navigation > Applied Mathematics and Mechanics > 2025 > 46(5): 611-620

MIAO Guanghong, WU Weida, ZHOU Dapeng, DONG Jilei, WEI Zhengmei, CHEN Long, ZHU Zhiqiang. Numerical Simulation of Stand-Off Distance Effects on Explosive Welding Quality of Titanium-Stainless Steel[J]. Applied Mathematics and Mechanics, 2025, 46(5): 611-620. doi: 10.21656/1000-0887.450301

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Numerical Simulation of Stand-Off Distance Effects on Explosive Welding Quality of Titanium-Stainless Steel

doi: 10.21656/1000-0887.450301

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;
3. CCTEG Huaibei Blasting Technology Research Institute Co., Ltd., Huaibei, Anhui 235000, P.R.China

Funds:

The National Science Foundation of China(11902003)

Received Date: 2024-11-04
Rev Recd Date: 2025-02-20

Available Online: 2025-05-30

Abstract

Abstract

The effects of stand-off distance on explosive welding quality between titanium (TP 270C) and stainless steel (SUS 821L1) composite plates, were investigated. The 3D numerical simulations were conducted with the ANSYS/LS-DYNA software by 2 algorithms (the ALE method and the SPH-FEM coupling method) for 3 stand-off distances: 1.2 mm, 2.2 mm and 3.5 mm. The simulation results show that, for both algorithms the vertical displacements of flyer plates reach or exceed respective stand-off distances. The collision velocities and angles consistently fall within the acceptable range of the welding window. The collision velocity and angle exhibit positive correlations with increasing stand-off distances. Optimal welding quality occurs at the 3.5 mm stand-off distance. The results verify that both algorithms effectively simulate explosive welding between the TP 270C titanium alloy and the SUS 821L1 stainless steel. Stable bonding is achievable across all tested stand-off distances. Moreover, the interfacial bonding strength increases progressively with the stand-off distance, which demonstrates an enhancement mechanism in welding quality through parameter optimization.
- stand-off distance,
- explosive welding,
- ALE algorithm,
- SPH-FEM coupling algorithm

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References(16)

References

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