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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31 , No. 4

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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 4, pp. 255-262
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Aug 2022
Received 25 Jul 2022 Revised 04 Aug 2022 Accepted 05 Aug 2022
DOI: https://doi.org/10.7735/ksmte.2022.31.4.255
열영향을 받는 하이브리드 원통형 적층복합재의 최적화
조희근^a^{, *}

Optimization of Hybrid Cylindrical Laminated Composites Under Thermal Effects
Hee Keun Cho^a^{, *}
aDepartment of Mechanical Engineering Education, Andong National University
Correspondence to : ^*Tel.: +82-54-820-5677 E-mail address: hkcho@anu.ac.kr (Hee Keun Cho).



Funding Information ▼ ANDONG NATIONAL UNIVERSITY

Abstract

In this study, a hybrid laminated composite comprising carbon/epoxy (C/E) and glass/epoxy(Gl/E) laminates was optimized. The optimal lamination angle must be calculated in the design of a cylindrical laminated composite that is subjected to both bending and torsion under a thermal stress environment. Generally, the composite material does not simply cause fracture owing to a stress component but exhibits fracture behavior according to the fracture theory owing to the combination of various stress components. The lamination angles of the hybrid cylindrical laminated composite were optimized using the four failure theories of Tsai-Wu, Tsai-Hill, Hoffman, and Hasin as the design criteria. The effect of thermal stress on the lamination angle was confirmed by comparatively examining the optimization results of the case where thermal stress was applied and the case where thermal stress did not act.


Keywords: Composite, Orthotropic material, FEM(finite element method), FEA(finite element analysis), Optimization

Acknowledgments

이 논문은 안동대학교 기본연구지원사업에 의하여 연구되었음.

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Hee Keun Cho

Professor in the Department of Mechanical Engineering, Andong National University. His research interest is computer aided engineering, finite element method, composite materials and design optimization

E-mail: hkcho@anu.ac.kr