...Yun Luo; Qian Zhang; Hong-Xiang Zheng; Wenchun Jiang In this paper, a new controlling method combined local postweld heat treatment (PWHT) and water jet peening (WJP) was proposed to reduce full-field residual stress of girth weld with thick wall. The finite element analysis with sequential...

...Rajkumar Shufen; Uday S. Dixit Recently, a method of inducing compressive residual stresses in the vicinity of the walls of a thermally autofrettaged cylinder was proposed. In the proposed method, the thermally autofrettaged cylinder was heated in such a manner that its outer wall attained...

...Abdel-Hakim Bouzid; Hacène Touahri; Khaled Benfriha The expansion induced by cold working is a common process that generates residual stresses. It is used when fatigue damage accumulation and life reduction of aluminum alloy perforated plates is an issue in the aeronautics industry. This process...

... in both cases have been obtained, and convection and radiation coefficients of flux-covered X80 pipeline steel in air-cooled environment have been corrected. By using sysweld software, a finite-element computational model was set up for microstructure and residual stress in the weld zone of multiwire...

...Li Ai; Xinhai Yu; Wenchun Jiang; Wanchuck Woo; Xiaofeng Ze; Shan-Tung Tu Fig. 10 Residual stress distributions of as-welded sample and after subsequent heat treatment in three directions Fig. 11 Residual stresses for three directions after PWHT by simulation Fig. 5 Thermal...

... of the outer surface, the middle layer, and the inner surface of a HFIW pipe after heat treatment were quantitatively analyzed, and validated by means of a blind-hole drilling test. The results indicate that the radial residual stress is smaller, than the axial residual stress. The maximum residual von Mises...

...E. Hosseinian; G. H. Farrahi; M. R. Movahhedy Autofrettage is a technique for introducing beneficial residual stresses into cylinders. Both analytical and numerical methods are used for the analysis of the autofrettage process. Analytical methods have been presented only for special cases...

...Andrew H. Sherry; Mark A. Wilkes; John K. Sharples; Peter J. Budden This paper presents the results of a numerical study undertaken to assess the influence of residual stresses on the ductile tearing behavior of a high strength low toughness aluminum alloy. The Gurson–Tvergaard model was calibrated...

..., so that the number of iterations for convergence reduces approximately to one-tenth of Hencky program iterations. The solution algorithm for plane strain, open-end, and closed-end conditions is the same. Stacey , A. , and Webster , G. A. , , 1988 , “ Determination of Residual Stress...

...Hu Chen; Jian-Ming Gong; Shan-Tung Tu; Lu-Yang Geng The brazed plate-fin structure is the key component of a compact plate-fin heat exchanger. The residual stresses and thermal deformation induced by vacuum brazing may bring negative effects on the quality and the life of the plate-fin structure...

...H. Walaszek; H. P. Lieurade; C. Peyrac; J. Hoblos; J. Rivenez The good control of residual stress level in mechanical components is an important factor, particularly for a good fatigue strength of these components. This paper presents advances obtained at the technical center for mechanical...