Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Deformation Analysis of the Structures with SMA Strip Actuator

형상기억합금 스트립 작동기를 이용한 구조물의 형상 변형 해석

  • 노진호 (한국과학기술원 항공우주공학과) ;
  • 한재홍 (한국과학기술원 항공우주공학과) ;
  • 이인 (한국과학기술원 항공우주공학과)
  • Published : 2005.11.30
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Abstract

In this research, the thermomechanical responses of shape memory alloy(SMA) actuators and their applications in the structures combining strip SMA actuators are investigated. The numerical algorithm of the 3-D SMA thermomechanical constitutive equations based on Lagoudas model is developed using user material(UMAT) subroutine written by FORTRAN. For the numerical results, the ABAQUS finite element program has been utilized with UMAT subroutine of the numerical algorithm of SMAs. The interactions between the host structure and SMA strip actuator are numerically investigated.

본 연구에서는 형상기억합금 작동기의 열-기계적 특성과 구조물의 응용을 살펴보았다. Lagoudas 모델을 기본으로 3-D 형상기억합금의 구성방정식을 FORTRAN으로 해석 알고리즘을 만들어 user material(UMAT) subroutine을 개발하였다. 개발된 형상기억합금 해석 UMAT subroutine을 상용 프로그램 ABAQUS와 연계 해석하여 형상기억합금 작동기와 주 구조물간의 상호 특성을 수치적으로 살펴보았다.

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References

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