Numerical Simulation of the Shape Memory Alloy Pipe Joint

Abstract

Based on the existing constitutive model of shape memory alloys (SMA), as well as on the state of stress distribution between the pipe and pipe joint, a simplified constitutive model for SMA can indeed fit the SMA pipe coupling structure. Using this constitutive model to simulate the stress distribution during the process of heating up, we can use the system to discuss the relationship between the radial compressive stress and various influencing factors. KeywordsShape Memory Alloys; Constitutive Model; Radial Compressive Stress; Pipe Joint; Wall Thickness