摘要：Objective:To study the stress distribution of the femoral hip prosthesis after the hip joint ***:After the hip joint replacement,when the femur and prosthesis are considered as concentric cylinders with perfectly banded interface,a relatively perfect theoretical model of simulating the interfacial stress transfer is ***:The maximum interfacial shear stress occured at Z=*** the cross-section of the femoral neck,interfacial shear stress decreased exponentially with the increases of the *** stress became very small at Z>0.1 m,which meant that the shear stress at the far end of the femoral hip prosthesis was very *** order to avoid the stress concentration and femoral hip prosthesis sinking,interfacial stress must remain constant and balanced with the pressure load at Z=*** radius of the femoral hip prosthesis changed with interfacial shear *** maximum value of the radius occured at Z=0,then it decreased at ***,a=18.2 mm at Z=10 mm,a=5.36 mm at Z=98 mm,these are ideal ***:A theoretical model of simulating the interfacial stress is established when the femur and prosthesis are considered as concentric *** distributions of the interfacial shear and radial stresses with the axial positions are obtained.A theoretical reference for the design of the prosthesis is provided.