Using a SR source of BEPC and the X-ray diffractometer, the study of multilayers and semiconductor superlattice structure, as well as the measurements of residual stress relaxation anddistribution around the ceramic-metal (Si3N4/Steel) interface have been developed.

Effect of simulated welding parameters on pipe girth weld residual stresses;

Finite element analysis of butt-welding residual stresses;

Simulation Experiment Study of Influence Factors on Residual Stresses of Injection-molded Parts;

Analysis of the effects of residual stress in reinforcing cords on the finite element simulation of radial tire;

Study of residual stress in pipe drawing process with fixed mandrel;

Study on residual stress of ZrO_2 thermal barrier coating;

Using the slant cracks with smaller slant angle ofβ=45 deg,the effect on modeⅠstress intensity factor (K_Ⅰ)_(mes) and modeⅡstress intensity factor(K_Ⅱ)_(mes) due to the compressive residual stress and the crack surface contact were discussed.

With the X-ray stressmeasurer, the residual stress of machined surface was measured when aluminum alloy be fine-cutted by cemented carbide on different cutting condition.

Through the analysis of the microstructure,hardness and the distribution of residual stress of the die working surface machined by WEDM,the influences of WEDM on the quality of the die working surface are stated.

Analyzes and discusses the processed surface remaining stress mainly from three aspects.

Its remaining stress and temperature environment have been analyzed using ANSYS.

The implementation method of test for remaining stresses of cold bending thin walled steel sections by the electrochemical corrosion method is discussed mainly.