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Residual stresses5/18/2023 ![]() A detailed finite element (FE) modelling exercise was also carried out for the prediction of the weld residual stresses resulting from the manufacturing processes of the DMW joint. The weld residual stresses were thoroughly characterised using neutron diffraction and the contour method. The finished mock-up was subsequently machined to its final dimension. It was then subjected to a stress relief heat treatment before being girth welded together with the stainless steel tube (316L). The manufacturing process involved cladding and buttering of the ferritic steel tube (SA508-3). In this study, a mock-up of a nuclear safe-end dissimilar metal weld (DMW) joint (SA508-3/316L) was manufactured. In case of the thermo-mechanical analysis, compressive residual stresses at the rebar surface between two ribs and tensile residual stresses in the longitudinal direction at the tip of the ribs can be reported. In case of the load stress analysis, the results agree well with findings reported in literature and extend the current state of knowledge for B500B rebars with small diameters. The results are discussed and compared to literature results. A linear-elastic load stress analysis and a thermo-mechanical analysis of the manufacturing process are conducted. In this contribution, a modeling approach is proposed to examine geometrically and thermo-mechanically induced stress concentrations in ribbed reinforcing bars made of the steel grade B500B. However, the rebar’s fatigue performance is also influenced by residual stresses originating from the manufacturing process. Several studies addressing the relationship between rib geometry, stresses at the rebar surface induced by service loads and the rebar fatigue performance can be found in literature. In service, they are subjected to cyclic loading. Ribbed reinforcing steel bars (rebars) are used for the reinforcement of concrete structures. Authors may use MDPI'sĮnglish editing service prior to publication or during author revisions. Submitted papers should be well formatted and use good English. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Please visit the Instructions for Authors page before submitting a manuscript. ![]() Metals is an international peer-reviewed open access monthly journal published by MDPI. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. ![]() All manuscripts are thoroughly refereed through a single-blind peer-review process. Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website. Research articles, review articles as well as short communications are invited. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. All submissions that pass pre-check are peer-reviewed. Manuscripts can be submitted until the deadline. ![]() Once you are registered, click here to go to the submission form. Manuscripts should be submitted online at by registering and logging in to this website. This includes advances in residual stress prediction, development of hybrid techniques for measurement of residual stresses, and novel approaches in residual stress engineering. The aim of this Special Issue is to cover the recent progress and new developments regarding all aspects of residual stress characterization and approaches to control residual stresses in engineering components. In the former case, knowledge of residual stresses is required for assessments supporting the safe operation and life extension of critical infrastructure, whereas in the latter case, detailed knowledge is required to manipulate the residual stress field through careful design, controlled manufacture processes, and lifetime management. Alternatively, if residual stresses are engineered at the design stage, they can lead to improved performance and enhanced product lifetime. They cause distortion and can combine with operational stresses and result in premature failure of components. Residual stresses are the locked-in stresses inevitably introduced in fabricated parts as a result of manufacturing processes. ![]()
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