Earticle

초록

영어

The purpose of this study was to analyze flexural-torsional buckling capacity for columns having asymmetric cross section. This paper presents classical theory and develops instability analysis of thin-walled structures. The linear and geometric stiffness matrix for an element of a general asymmetric thin-walled open-section is formulated, and the bracing stiffness for an element in addition to linear stiffness assembles into global stiffness matrix. An approximate non-linear analysis has achieved by load incremental solution. The results of example are in reasonable agreements with previous theory expression suggested by Timoshenko and Gere, and with previous approximate method suggested by Paavola and Salonen.

목차

Abstract
 1. 서 론
  1.1 연구의 목적
  1.2 연구의 범위 및 방법
 2. 미분방정식을 이용한 좌굴해석
 3. 유한요소법에 의한 좌굴해석
  3.1 강성행렬 유도
  3.2 변환행렬의 유도
 4. 예제 적용 및 분석
  4.1 중심축 하중을 받는 ㄱ형 단면 부재의 좌굴해석
  4.2 편심하중이 작용하는 ㄷ형 단면 부재의 좌굴해석
  4.3 편심하중을 받는 ㄱ형 단면 부재의 비선형 해석
 5. 결 론
 참고문헌

저자

• 김주원 [ Kim, Ju Won | 동명대학교 전임강사, 공학박사 ] 교신저자

참고문헌