전산구조공학 (Computational Structural Engineering)

한국전산구조공학회 (Computational Structural Engineering Institute of Korea)
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확장유한요소법을 이용한 임의의 불연속면 처리기법

Arbitrary Discontlnuities in Finite Elements

  • Belytschko, Ted (Department of Mechanical Engineering, Northwestern University) ;
  • Moes, Nicolas (Department of Mechanical Engineering, Northwestern University) ;
  • Usui, Suji (Department of Mechanical Engineering, Northwestern University) ;
  • Parimi, Chandu (Department of Mechanical Engineering, Northwestern University)
  • 발행 : 2004.06.01
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초록

유한요소법의 테두리 내에서, 함수 자체 및 그 미분에서 발생하는 임의의 불연속면을 처리할 수 있고, 또 불연속면의 교차 및 분기를 다루는 기법을 제사하였다. 불연속면을 근사하기 위해 거리함수를 이용하였고, 불연속면의 천이는 레벨？ 함수를 이용하여 표현하였다. 이산화된 방정식을 유도하기 위해 표준 갈라킨법을 이용하였다. 수치해석 예로서, 균열성장, 회전축 베어링, 비부착 함입, 암반의 절리를 대상으로 하였다. 본 논문은 International Journal for Numerical Methods in Engineering 2001년 50호 pp. 993-1013에 발표된 논문이다. (중략)

키워드

참고문헌

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  2. International Journal for Numerical Methods in Engineering v.45 no.5 Elastic crack growth in finite elements with micimal remeshing Belytschko,T.;T.Blank
  3. International Journal for Numerical Methods in Engineering v.58 no.12 Dynamic crack propagation based on loss of hyperbolicity with a new discontinuous enrichment Belytschko,T.;H.Chen;J.Xu;G.Zi
  4. Nonlinear finite elements for continua and structures Belytschko,T.;W.K.Liu;B.Moran
  5. International Journal for Numerical Methods in Engineering v.37 no.2 Element free Galerkin methods Belytschko,T.;Y.Y.Lu;L.Gu
  6. International Journal for Numerical and Analytical Methods in Geomechanics v.8 A computer method for stability analysis of cavems in jointed rock Belytschko,T.;M.Plesha;C.Dowding
  7. International Journal for Numerical Methods in Engienering v.48 Arbitrary branched and intersecting cracks with the extended finite element method Daux,C.;N.Moes;J.Dolbow;N.Sukumar;T.Belytschko
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  20. International Journal for Numerical Methods in Engineering v.57 New crack-tip elements for XFEM and applications to cohesive cracks Zi,G.;T.Belytschko
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