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Journal of Materials Engineering and Performance

, Volume 27, Issue 10, pp 5079–5085 | Cite as

Strain Rate Dependency of Simulated Welding Residual Stresses

  • Stefanos Gkatzogiannis
  • Peter Knoedel
  • Thomas Ummenhofer
Article
  • 80 Downloads

Abstract

In the present work, the influence of taking into consideration the strain rate-dependent nature of steel S355 during a calculation of the welding residual stresses through a finite element simulation is investigated. The Perzyna material model is calibrated using experimental values found in the literature and is introduced to a validated weld simulation model, where the strain rate dependency had not been taken into consideration before this study. The calculated profiles of the welding residual stresses, for strain rate-dependent and independent behavior, are then compared with experimentally measured profiles. The results of this first-step analysis show that taking into consideration strain rate dependency during a welding simulation of the investigated S355 has non-negligible influence on the calculated welding residual stresses.

Keywords

S355 strain rate dependency weld simulation 

Notes

Acknowledgment

The above-presented work was carried out as a part of the framework of a PhD programme at Karlsruhe Institute of Technology (Ref 23).

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Copyright information

© ASM International 2018

Authors and Affiliations

  • Stefanos Gkatzogiannis
    • 1
  • Peter Knoedel
    • 1
  • Thomas Ummenhofer
    • 1
  1. 1.KIT Steel & Lightweight StructuresResearch Center for Steel, Timber & MasonryKarlsruheGermany

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