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Journal of Materials Science

, Volume 42, Issue 16, pp 6607–6613 | Cite as

Prediction of residual stresses in welds of similar and dissimilar steel weldments

  • Chin-Hyung LeeEmail author
  • Kyong-Ho Chang
Article

Abstract

The fabrication of structural member using dissimilar steels renders steel structures lighter and more economical. However, it always involves welding process and produces different residual stresses in welds as compared with welding of similar steels. This paper presents the characteristics of residual stresses in welds of similar and dissimilar steel weldments by carrying out three-dimensional (3-D) thermal elastic-plastic finite element (FE) analysis. The materials used in this investigation were SM400, SM490, SM520 and SM570, widely used structural steels in welded structure. Results show that the maximum longitudinal residual stresses in welds of the similar steel weldments increase with increasing yield stress of the steel welded (SM400 < SM490 < SM520 < SM570). In case of the dissimilar steel weldments, the difference between the longitudinal residual stresses in welds increases with increasing yield stress of the steel welded together with SM400 (SM490 < SM520 < SM570).

Keywords

Welding Residual Stress Weld Metal Welding Process Weld Pool 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Conventional Rail Engineering CorpsKorea Railroad Research InstituteUiwang-shi, Kyunggi-doKorea
  2. 2.Department of Civil and Environmental EngineeringChung-Ang UniversityDongjak-ku, SeoulKorea

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