... yields starting from the inner wall up to an intermediate radius. When the load is removed, elastic recovery takes place and compressive residual stresses are induced in the vicinity of the inner wall, which strengthen the vessel against high static and pulsating loads during service. Based on the load...

...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...

... 28, 2014; published online September 4, 2014. Assoc. Editor: Maher Y. A. Younan. 29 01 2013 28 01 2014 In this study, for the hard-facing of spring-loaded pressure relief valve seats, the residual stress distributions after the tungsten inert gas welding, (TIG) postwelded heat...

... on the rules of influence of a post weld medium-frequency heat treatment process on microstructural change and the rules of residual stress distribution, and proposes a quantitative analysis method for studies on heating mechanisms of on-line heat treatment. The microstructural evolution process respect...

...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...

... pipes stress-strain relations autofrettage residual stresses thick-walled tube VMP method Autofrettage is a technique to increase the pressure capacity of thick-walled cylinders by introducing residual stresses into the cylinder. In this process, the cylinder is subjected to high...

...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...