[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 30, No. 3, pp.218-223

ISSN: 2508-5107 (Online)

Print publication date 15 Jun 2021

Received 10 Mar 2021 Revised 22 Mar 2021 Accepted 26 Mar 2021

DOI: https://doi.org/10.7735/ksmte.2021.30.3.218

탄소섬유복합재와 강재의 재질과 형상변화에 따른 구조부재의 압궤 특성

곽영환^a ; 차천석^b^{, *}

Collapse Characteristics of Structural Members based on Materials and Section Shape Changes in Carbon Fiber Composites and Steels

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

In the event of a vehicle collision, the kinetic energy of the colliding vehicles can cause sever injuries to the passengers if the vehicle body is too strong and the passengers bounced out of the vehicle due to inertia. If the vehicle body absorbs considerable collision energy, the passengers might get trapped inside, causing their death. Therefore, when a vehicle crashes, the structural members of its body must efficiently absorb the collision energy and secure space. In this study, a single hat-shaped cross-section member and a double-hat cross-section member has been used for the side member of an automobile that absorbs most of the collision energy during a vehicle collision event. Following the designing and manufacturing of the steel and carbon fiber reinforced polymer (CFRP) material structural members, the axial collapse test was performed to investigate the collapse mode and energy absorption characteristics based on their shape and material changes.

Keywords:

Vehicle collision, Structural member, CFRP, Collision energy, Collapse mode, Energy absorption characteristics

References

Lee, J., Kim, B., Chung, T., 2008, Automotive Body Design, Trans. Korean Soc. Mech. Tool Eng., 17:5 10-22.
Cha, C. S., 2000, Evaluation of Impact Collapse Characteristics in Vehicle Members Having Thin-wall Section, Doctoral Dissertation, Chosun University, Republic of Korea.
Editorial Department, 2012, Current Status and Forecast Report of Automotive Composite Materials, A&D Consultant, Republic of Korea.
Hwang, W. C., 2012, Collision Evaluation of Safety Performance in CFRP Hat Shaped Member a Use of Car Body Structures, Doctoral Dissertation, Chosun University, Republic of Korea.
Kim, H. S., Kim, J. H., 2019, Study on Collapse Characteristics in Composite Structural Member Consisting of Laminate Structures Using FEA, Proc. Korean Soc. Manuf. Technol. Eng. Autumn Conf., 144.
Hwang, W., Sim, J., Yang, I., 2011, A Study on the Collapse Characteristics of Al/CFRP Square Structural Member for Light Weight, J. Korean Soc. Manuf. Technol. Eng., 20:3 219-224.
Ahn, T., Lee, Y., Lee, S., 2020, A Study on Composite Materials Frame of Electric Vehicles using Impact Analysis, J. Korean Soc. Manuf. Process Eng., 19:2 75-80 [https://doi.org/10.14775/ksmpe.2020.19.02.075]
Huh, H., Kim, K. P., Kim, S. H., Song, J. H., Kim, H. S., Hong, S. K., 2003, Crashworthiness Assessment of Front Side Members in an Auto-body Considering the Fabrication Histories., Int. J. Mech. Sci., 45:10 1645-1660 [https://doi.org/10.1016/j.ijmecsci.2003.09.022]
Kim, K., Song, J., Huh, H., Kim, H., Hong, S., 2004, Crashworthiness of an Auto-body Member with the Forming Effect, Trans. Korean Soc. Automot. Eng., 12:1 91-98.
White, M. D., Jones, N., 1999, Experimental Quasi-static Axial Crushing of Top-hat and Double-hat Thin-walled Sections, Int. J. Mech. Sci., 41:2 179-208 [https://doi.org/10.1016/S0020-7403(98)00047-2]
White, M. D., Jones, N., Abramowicz, W., 1999, A Theoretical Analysis for the Quasi-static Axial Crushing of Top-hat and Double-hat Thin-walled Sections, Int. J. Mech. Sci., 41:2 209-233 [https://doi.org/10.1016/S0020-7403(98)00048-4]
Go, D. S., Kim, H. S., Park, C. J., Kim, J. H., 2017, Evaluation of Strength Characteristics of Circular Member of CFRP with Same Number of Interface according in Variation of Orientation Angle, Proc. Korean Soc. Manuf. Technol. Eng. Autumn Conf., 225.
Toshniwal, S. S., Prakash, R. V., 2020, Energy Absorption Characteristics of Single and Double-Walled Square Tubes Subjected to Axial Crushing, Adv. Mech. Eng. Summer Conf., 361-369 [https://doi.org/10.1007/978-981-15-3639-7_42]
Kwak, Y. H., 2021, Influence of Collapse Characteristics on Change in Section Shapes and Materials of Vehicle Structural Member, Master Thesis, Chosun University, Republic of Korea.
Park, J. W., 2008, A Study on the Crashworthiness Capacity of Vehicle side Member, Master Thesis, Chosun University, Republic of Korea.

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