爆炸焊接过程中复板运动位移的数值模拟

Numerical Simulation and Analysis of Displacement of Ti/Steel Cladded Plate During Explosive Welding

采用非线性动力有限元法建立了复合板在爆炸焊接过程中的有限元计算模型,对复合板运动状态进行了模拟和分析。利用有限元软件的网格划分功能建立了5/41mm×3850mm×6650mm钛/钢复合板模型,实现了对复板运动过程的三维有限元模拟。实验研究了不同间隙条件下复板运动过程的位移云图,并通过对实验结果进行比较与分析后,确定当间隙高度为8mm时,爆炸焊接后复板上各点的最终位移都达到了8mm,复合板结合率为100%。该研究为大面积钛钢复合板的爆炸焊接工艺参数的制定提供了依据。

Finite element software was used to simulate displacement of Ti/Steel cladded plate during explosive welding. The model of Ti/Steel cladded plate （5/41 mm× 3850 mm× 6650 mm ） was founded by grids dividing. Displacements contour bands of Ti plates were investigated under different spacers, and pass rate of cladded plate reached 100% when spacer was 8 mm. This study provides a basis for explosive welding of large size Ti/Steel cladded plate.