金属爆炸焊接界面应力场数值计算分析
A numerical calculation on contact surface stress field of metals explosive welding
-
摘要: 金属爆炸焊接材料的基、复板在炸药爆轰作用下产生的碰撞力是基、复板实现爆炸焊的关键条件。采用瑞利-里兹法计算模型,根据弹性力学的变分原理,将弹性力学问题表述为泛函驻值问题,使泛函驻值的条件对应于所解问题的基本方程和边界条件,从而推导出微分方程及对应的边界条件。计算碰撞点处的瞬时应力场,同时对不同的碰撞角和碰撞压力进行了模拟计算,发现了碰撞点处的应力场分布的基本规律。其应力场分布规律完全可以用于评价和指导实际的工程实践。Abstract: The impact pressure produced by explosive detonation is essential condition of the base plate and cladding plate coalescence for metal explosion welding.Based on Rayleigh-Ritz calculating model and elasticity variation principle, elasticity problem is considered as functional arrest ental equation, and boundary condition of the problem is given. Differential equation and corresponding boundary condition are derived.Instantaneous stress field at impact points was calculated, and analog calculating of different collision angles and impact pressures were carried out.Basic law of stress field distribution at impact points was found.The calculating stress field distribution law can be applied to evaluation and guidance of practical engineering.
-
Keywords:
- explosive welding /
- calculation model /
- impact pressure /
- stress field /
- value calculation
-
-
期刊类型引用(3)
1. 胡岭，余丁坤，卜永周，罗庆澄，薛松柏. Sn和Ce元素复合添加对BAg5CuZn钎料钎缝组织与性能影响. 焊接学报. 2024(04): 101-108+135 . 
本站查看
2. 汪小钰，王轶，操齐高，孟晗琪，郑晶，苏瑾，胡建华，张志霄. 熔炼气雾化制备钴基粉末钎料在GH4169合金钎焊中应用. 电焊机. 2024(05): 46-51 . 百度学术
3. 李淳，陈雷，司晓庆，亓钧雷，曹健. 陶瓷-金属接头残余应力调控研究综述. 机械工程学报. 2024(22): 21-39 . 百度学术
其他类型引用(1)
计量
- 文章访问数: 255
- HTML全文浏览量: 7
- PDF下载量: 65
- 被引次数: 4
下载:
