A Study of the Residual Stress Characteristics of FCAW Multi-Pass Butt Joint for an Ultra-Thick Plate

극후판 다층 FCAW 맞대기 용접부의 잔류응력 특성에 관한 연구

  • Bang, Hee-Seon (Dept. of Naval Architecture & Ocean Engineering, Chosun University) ;
  • Bang, Han-Sur (Dept. of Naval Architecture & Ocean Engineering, Chosun University) ;
  • Lee, Yoon-Ki (Dept. of Automobile, Chosun College of Science & Technology) ;
  • Kim, Hyun-Su (Dept. of Naval Architecture & Ocean Engineering, Graduate School, Chosun University) ;
  • Lee, Kwang-Jin (Automotive Components Center, Korea Institute of Industrial Technology)
  • 방희선 (조선대학교 공과대학 선박해양공학과) ;
  • 방한서 (조선대학교 공과대학 선박해양공학과) ;
  • 이윤기 (조선이공대학 자동차학과) ;
  • 김현수 (조선대학교 대학원 선박해양공학과) ;
  • 이광진 (한국생산기술연구원 동력부품센터)
  • Received : 2009.11.13
  • Accepted : 2010.04.23
  • Published : 2010.04.30

Abstract

The goal of this work is to establish the reliability of FCA welded joints for high strength EH36-TMCP ultra thick plate. For this, heat conduction and thermo elasto-plastic analyses have been conducted on a multi-pass, X-groove, butt-joint model to clarify the thermal and mechanical behavior (residual stresses, magnitude of the stresses, and their production and distribution mechanisms) of the weld joint. In addition, the results of the welding residual stress obtained from thermo elasto-plastic analysis was verified and compared with results obtained by XRD analysis.

Keywords

References

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