孙标,廖秋慧,何建萍

• 1:上海工程技术大学材料工程学院

摘要(Abstract)：

为实现铜与低碳钢的连接,一种新型连接方法被提出,即旋转冲击连接,用铜作为旋转子弹,低碳钢作为基板,子弹以一定的碰撞速度和角度冲击基板实现连接。为了获得冲击连接形成所需的合适冲击速度和角度,利用SPH(Smoothed-particle hydrodynamics)粒子法模拟冲击连接过程。结果表明:子弹冲击连接时可以形成稳定界面波形的冲击速度范围为150～380 m/s,冲击角度范围为0°～6°。同时分析了冲击角度和速度对界面波形成的原因和影响,表明子弹在低速度(150～380 m/s)和低冲击角度(0°～6°)时界面机理符合应力波机理与复板流刻入机理;高速度(480～928 m/s)和高冲击角度(7°～10°)时符合流体力学的机理。

关键词(KeyWords)： 冲击连接;数值模拟;SPH粒子法;界面波形

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51775327)

作者(Author): 孙标,廖秋慧,何建萍

DOI: 10.13289/j.issn.1009-6264.2021-0164

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