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한국생산제조학회 학술지 영문 홈페이지
[ Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 6, pp.577-583
ISSN: 2508-5093 (Print) 2508-5107 (Online)
Print publication date 15 Dec 2018
Received 17 Oct 2018 Revised 25 Oct 2018 Accepted 30 Oct 2018
DOI: https://doi.org/10.7735/ksmte.2018.27.6.577

퇴화 쉘요소를 사용한 원통형 복합재 패널의 비선형 좌굴후 현상해석

조희근a, *
Nonlinear Buckling and Post-Buckling of Cylindrical Composite Structure Using Degenerated Shell Element
Hee Keun Choa, *
aDepartment of Mechanical Engineering Education, Andong National University, 1375 Kyungdong-ro, Andong, Kyungpook-do, 36729, Korea

Correspondence to: *Tel.: +82-54-820-5677 Fax: +82-54-820-6379 E-mail address: hkcho@anu.ac.kr (Hee Keun Cho).

Abstract

In this study, the post - buckling analysis of cylindrical panel of isotropic material and composites was investigated. The arc-length nonlinear analysis method has been used for the analysis of post-buckling phenomena where snap-through and snap-back phenomenon occur. In this study, a method to find bifurcation point in buckling analysis using arc-length method is presented. The bifurcation point of the buckling was found in the cylindrical shell structure of isotropic material to ensure the reliability of the current approach. The bifurcation buckling point was successfully calculated with composites having extremely high structural instability. The formulations, mathematical model and analysis procedures and boundary conditions proposed in this study can be used as important data for the unstable buckling analysis of other structures.

Keywords:

Buckling, Composite, Bifurcation, Shell element

Acknowledgments

본 연구는 대구연구개발 특구 기술사업화과제(2018-DG-RD-0003-01-101)의 연구수행으로 진행되었습니다.

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