Journal ArticleDOI
Residual stress distributions in welded stainless steel sections
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TLDR
In this paper, a total of 18 test specimens were fabricated from hot-rolled stainless steel plates by means of shielded metal arc welding (SMAW) and two grades of stainless steel were considered, namely the austenitic grade EN 1.4301 and the duplex grade EN1.4462.Abstract:
Residual stress magnitudes and distributions in structural stainless steel built-up sections have been comprehensively investigated in this study. A total of 18 test specimens were fabricated from hot-rolled stainless steel plates by means of shielded metal arc welding (SMAW). Two grades of stainless steel were considered, namely the austenitic grade EN 1.4301 and the duplex grade EN 1.4462. Using the sectioning method, the test specimens were divided into strips. The residual stresses were then computed by multiplying the strains relieved during sectioning by the measured Young׳s moduli determined from tensile and compressive coupon tests. Residual stress distributions were obtained for 10 I-sections, four square hollow sections (SHS) and four rectangular hollow sections (RHS). Peak tensile residual stresses reached around 80% and 60% of the material 0.2% proof stress for grades EN 1.4301 and EN 1.4462, respectively. Based upon the test data, simplified predictive models for residual stress distributions in stainless steel built-up I-sections and box sections were developed. Following comparisons with other available residual stress test data, the applicability of the proposed models was also extended to other stainless steel alloys. The proposed residual stress patterns are suitable for inclusion in future analytical models and numerical simulations of stainless steel built-up sections.read more
Citations
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Journal ArticleDOI
Standardised material properties for numerical parametric studies of stainless steel structures and buckling curves for tubular columns
Sheida Afshan,Sheida Afshan,Sheida Afshan,Ou Zhao,Ou Zhao,Ou Zhao,Leroy Gardner,Leroy Gardner,Leroy Gardner +8 more
TL;DR: In this paper, a comprehensive database of material test data from different stainless steel products, values for the yield stress fy, the ultimate tensile stress fu, and the strain at the ETSF and the Ramberg-Osgood parameters were proposed.
Journal ArticleDOI
Laser-welded stainless steel I-sections: residual stress measurements and column buckling tests
TL;DR: In this paper, a total of 9 stub column tests and 22 flexural buckling tests have been performed on laser-welded structural stainless steel members, for which there are currently little experimental data owing to their recent introduction to the construction industry, are the focus of the present study.
Journal ArticleDOI
Testing, numerical modelling and design of S690 high strength steel welded I-section stub columns
Yao Sun,Yating Liang,Ou Zhao +2 more
TL;DR: In this article, a comprehensive testing and numerical simulation investigation into the material properties, membrane residual stresses and compression capacities of S690 high strength steel welded I-section stub columns was performed.
Journal ArticleDOI
Local–overall interactive buckling of welded stainless steel box section compression members
TL;DR: In this article, the interaction between local and overall buckling of welded stainless steel columns has been investigated experimentally and numerically in the study of eight stainless steel box section compression members fabricated from slender hot-rolled plates.
Journal ArticleDOI
Local–overall interactive buckling behaviour of welded stainless steel I-section columns
TL;DR: In this article, two separate finite element (FE) models, capable of simulating the interactive buckling behaviour and predicting the ultimate capacity of welded stainless steel I-section columns, were validated against the obtained test results.
References
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Book
Guide to stability design criteria for metal structures
TL;DR: Stability analysis by Finite-element method as discussed by the authors has been used for dynamic stability analysis of columns and columns in a variety of structural and structural components, e.g., columns with Elastic Lateral Restraints.
Journal ArticleDOI
Residual stress. Part 2 – Nature and origins
TL;DR: In this paper, the authors examine the nature and origins of residual stresses across a range of scales, from the long range residual stress fields in engineering components and welded structures, through the interphase stresses present in composites and coatings, to the microscale interactions of phase transformations with local stresses.
BookDOI
Guide to stability design criteria for metal structures
TL;DR: In this article, the authors present an overview of the structural properties of metal columns and their application in the design of box girders, including the following: 1.1 Introduction. 2.2 Bifurcation Buckling. 3.3 Influence of End Restraint. 4.4 Inelastic Bending.
Journal ArticleDOI
Recent advances in residual stress measurement
TL;DR: In this paper, the capabilities of newly emerging destructive (i.e., the contour method) and non-destructive residual stress measurement techniques for evaluating ferritic and austenitic pressure vessel components are contrasted against more well-established methods.
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