[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 31, No. 3, pp.197-203

ISSN: 2508-5107 (Online)

Print publication date 15 Jun 2022

Received 07 Apr 2022 Revised 19 Apr 2022 Accepted 22 Apr 2022

DOI: https://doi.org/10.7735/ksmte.2022.31.3.197

충격압궤 실험에 의한 경량화용 차체 구조부재의 개발

곽영환^a ; 차천석^b^{, *}

Development of Structural Members for a Use of Lightweight by Impact Collapse Experimentation

Young-Hwan Kwak^a ; Cheon-Seok Cha^b^{, *}

aDepartment of Mechanical System Engineering, Chosun University Graduate School
bDepartment of Fire Safety, Donggang University

Correspondence to: ^*Tel.: +82-62-520-2520 E-mail address: cha7170@donggang.ac.kr (Cheon-Seok Cha).

Abstract

The most important requirement in the initial design stage of vehicles is that the structural members of a vehicle body adequately absorb impact energy and secure a safe space during collision. Furthermore, it is the development of materials for weight reduction. Therefore, the collapse characteristics caused by the collision of the structural member having the largest collision energy absorption must be accurately understood when designing a vehicle in consideration of a safe and lightweight design. In this study, the impact collapse experiments were conducted after designing, manufacturing, and molding single hat and double-hat cross-section members of steel and carbon fiber reinforced plastic(CFRP)/epoxy materials. By examining the resulting energy absorption characteristics, accurate design data could be obtained to develop the side structural members for optimal lightweight vehicles.

Keywords:

Structural members, Impact energy, Collapse characteristics, Lightweight design, CFRP, Impact collapse experiments

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Young-Hwan Kwak

Master in the Department of Mechanical System Engineering, Chosun University.

His research interest is Machine.

E-mail: scs@i-scs.com

Cheon-Seok Cha

Professor in the Department of Fire Safety, Donggang University.

His research interest is Machine.

E-mail: cha7170@donggang.ac.kr