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3-D FINITE ELEMENT ANALYSIS OF THE EFFECT OF WELDING RESIDUAL STRESS ON HYDROGEN DIFFUSION IN HYDROGEN CONTAINED ENVIRONMENT H. Chen1,S.T. Tu1,W.C. Jiang1,J.Q. Tang1,J.M. Gong1 (1.College... the finite element method (FEM). The effect of welding residual stress on hydrogen diffusion has been discussed using a 3-D sequential coupling finite element analysis procedure complied by Abaqus code......
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by authors, and then residual stresses were obtained.The effects of the carburized part, the web structure, and the rim thickness on the residual stress were determined. 关键词:case-carburizing; residual stress; gear; thin rim; thin web; carburized part; 3D-FEM; heat conduction analysis; elastic-plastic stress analysis; [全文内容正在添加中] ......
rate is beneficial to obtain a homogeneous residual stress field; (3) The impact sequence has a great effect on the residual stress field. It can greatly attenuate the phenomenon of the "residual stress hole" to obtain a homogeneous residual stress field. Key words:Laser shock processing; Overlapping; Residual stress; Finite element method; [全文内容正在添加中] ......
Prediction of Large Structure Welding Residual Stress by Similitude PrinciplesShude Ji 1)? , Liguo Zhang 1) , Xuesong Liu 2) and Jianguo Yang 2) 1) School of Aerospace Engineering, Shenyang Institute..." name="ChDivSummary">On basis of the similitude principles, the conception of virtual simulative component and the auxiliary value of welding residual stress, which is deduced by the welding conduction......
loading + the fabrication stress + the residual stress) should be below a threshold level, which, in the absence of other data, could be (conservatively) estimated to be about 50% of the tensile yield... in distilled water. The total stress in service (stress from the service loading + the fabrication stress + the residual stress) should be below the threshold level which, in the absence of other data......
Thermal residual stress analysis of coated diamond gritsZi-qian Huang1),Bo Xiang2),Yue-hui He1),Bai-yun Huang1) 1) State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China 2) Zhejiang Huayou Cobalt Co. Ltd.,Tongxiang 314500,China摘 要:Residual stresses of coated diamond grits were analyzed by a finite element unit cell......
brought about difficulties for measurement. X-ray diffraction (XRD)[1], Raman spectroscopy[2] and nanoindentation[3] are three conventional methods to measure preciously residual stress and strain in small sized area. Residual stress and strain acquired by XRD are mean values in the X-ray penetration depth. Since the penetration depth of X-rays varies with its wavelength, different values......