Abstract
The present contribution shows the residual stress results obtained from experiments with the sectioning method in comparison to global (structural) welding simulation models on component-like (i.e., large scale) I-girders made of structural steel grades S355 and S690QL. Plates were welded by conventional gas metal arc welding using two different heat inputs. In addition, the base material was assumed to be approximately stress-free. Based on these results, conclusions and recommendations for the design of welded I-girders are drawn.
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Acknowledgments
The present contribution was a part of the IGF project 18104 BG of the German Research Association for Steel Application (FOSTA). It was kindly funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) by the AiF (German Federation of Industrial Research Associations) as part of the program for support of the Industrial Cooperative Research (IGF) on the basis of a decision by the German Bundestag. Sincere thanks are given for this support and to the representing companies actively involved in the project board. In addition, the authors want to thank Mr. Frank Köhler and Mr. Christian Ullrich for the conduction of the sectioning experiments and Mrs. Stefanie Groth for her assistance during the evaluation of the strain gage data as well as Mrs. Birgit Ragotzky for her support in the development of numerical models.
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Launert, B., Rhode, M., Kromm, A. et al. Measurement and numerical modeling of residual stresses in welded HSLA component-like I-girders. Weld World 61, 223–229 (2017). https://doi.org/10.1007/s40194-016-0413-x
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DOI: https://doi.org/10.1007/s40194-016-0413-x