Numerical simulation of residual stresses in hot isostatic pressed SiC/GH4738 composites

In this paper, the residual stresses in hot isostatic pressed SiC/GH4738 composites were investigated using numerical simulation. First, the finite element model of the SiC/GH4738 composites was built using ABAQUS. Then, the hot isostatic press process was simulated, where the paths of temperature and pressure were considered. The residual stress distributions were obtained, and the changes in interfacial residual stresses with angle were analyzed. Finally, the effect of process parameters on residual stresses was analyzed. The simulation results show that maximum temperature, holding time, and fiber volume content have little influence on the distribution of interface residual stress but have great influence on the magnitude of interfacial residual stress. The results will help to influence the design and preparation of SiC/GH4738 composites.