Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Developed Inherent Strain Method Considering Phase Transformation of Mild Steel in Line Heating

선상가열시 강의 상변태를 고려한 개선된 고유변형도 기반의 등가하중법

  • 하윤석 (서울대학교 대학원 조선해양공학과) ;
  • 장창두 (서울대학교 조선해양공학과)
  • Published : 2004.12.01
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Abstract

The inherent strain method is known to be very efficient in predicting the deformation of steel plate by line heating. However, in the actual line heating process in shipyard, the rapid quenching changes the phase of steel. In this study, In order to consider additional effects under phase transformation, inherent strain regions were assumed to expand. Also, when calculating inherent strain, material properties of steel in heating and cooling are applied differently considering phase transformation. In this process, a new method which can reflect thermal volume expansion of martensite is suggested.8y the suggested method, it was possible to predict the plate deformations by line heating more precisely.

Keywords

References

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