超声波焊接铝塑复合管承载行为的数值模拟

采用有限元方法分析了铝塑复合管在模拟承载状态下的应力应变行为,研究了中间铝层的直径变化以及搭接接头搭接部分长度的变化对承载行为的影响.得出在内外径一定的情况下,铝层直径的增加使应力集中程度减小,但内外层塑料的应变发生相反的变化;搭接接头搭接长度的增加,使应力集中程度降低.

Digital Analog of Loading Action for Ultrasonic Welding Al-Plastic Compound Pipe

To adopt finite meta method analyzes stress strain action of Al-plastic compound pipe under Analog load status and studies the influence of load capacity by variation of diameter of medium Al layer and change of joint part length lap joints.Given under inside and outside diameter is fixed,the increase of diameter of Al layer reduces the concentration of stress,however,the stress of inside and outside layer plastic will occur the opposite change;the increase of lap length of lap joints reduces the concentration degree of stress.