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http://dx.doi.org/10.7234/composres.2021.34.1.035

Structural Analysis and Design of B-pillar Reinforcement using Composite Materials  

Kang, Ji Heon (Korea Institute of Industrial Technology)
Kim, Kun Woo (Korea Institute of Industrial Technology)
Jang, Jin Seok (Korea Institute of Industrial Technology)
Kim, Ji Wook (Korea Institute of Industrial Technology)
Yang, Min Seok (Korea Institute of Industrial Technology)
Gu, Yoon Sik (A-jin Industrial Co. Ltd.)
Ahn, Tae Min (A-jin Industrial Co. Ltd.)
Kwon, Sun Deok (Gyeongbuk Hybrid Technology Institute)
Lee, Jae Wook (Korea Institute of Industrial Technology)
Publication Information
Composites Research / v.34, no.1, 2021 , pp. 35-46 More about this Journal
Abstract
This paper aims to reduce weight by replacing the reinforcements of the B-pillar used in vehicles with CFRP(Carbon Fiber Reinforced Plastics) and GFRP(Glass Fiber Reinforced Plastics) from the existing steel materials. For this, it is necessary to secure structural stability that can replace the existing B-pillar while reducing the weight. Existing B-pillar are composed of steel reinforcements of various shapes, including a steel outer. Among these steel reinforcements, two steel reinforcements are to be replaced with composite materials. Each steel reinforcement is manufactured separately and bonded to the B-pillar outer by welding. However, the composite reinforcements presented in this paper are manufactured at once through compression and injection processes using patch-type CFRP and rib-structured GFRP. CFRP is attached to the high-strength part of the B-pillar to resist side loads, and the GFRP ribs are designed to resist torsion and side loads through a topology optimization technique. Through structural analysis, the designed composite B-pillar was compared with the existing B-pillar, and the weight reduction ratio was calculated.
Keywords
Composite materials; B-pillar reinforcement; Structural analysis; Light-weight;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Hwang, Y.T., Lim, J.Y., Nam, B.G., and Kim, H.S., "Analytical Prediction and Validation of Elastic Behavior of Carbon-Fiber-Reinforced Woven Composites," Composites Research, Vol. 31, No. 5, 2018, pp. 276-281.
2 Moon, J.B., Kim, J.H., Jang, H.K., and Park, J.S., "A Study on Calculation of Composites Lamina Material Properties through Reverse Engineering of Light Weight Composite Car-body," Transaction of the Korean Society of Automotive Engineers, Vol. 25, No. 1, 2017, pp. 1-10.   DOI
3 Kim, G.H., Lim, D.W., Choi, J.H., Kweon, J.H., Lee, T.J., Song, M.H., and Shin, S.J., "Fabrication and Evaluation of Composite Panel with Hat-shaped Stiffeners," Composites Research, Vol. 23, No. 2, 2010, pp. 31-39.   DOI
4 Lee, J.J., Mun, J.H., Yoon, W.H., Kang, D.K., Ahn, M.S., Roh, H.J., Kang, J.H., and Lee, J.W., "Study on Structural Reliability Assessment of a Partition Panel Made of a CFRP(Carbon Fiber Reinforced Plastic)," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 18, No. 10, 2019, pp. 68-74.   DOI
5 Shin, K.B., and Koo, D.H., "A Study on the Evaluation of the Failure for Carbody Structures made of Laminated Fiber-Reinforced Composite Materials Using Total Laminate Approach," Composites Research, Vol. 17, No. 1, 2004, pp. 18-28.
6 UN_IPRES Corp., "Total Press Engineering - Unipres' Technical Strength homepage", accessed Dec. 12, 2020, www.unipres.co.jp/en/products/total/
7 Behrens, B.A., Bouguecha, A., Gaebel, C.M., Moritz, J., and Schrödter, J., "Hot Stamping of Load Adjusted Structural Parts," Proceeding of the 11th International Conference on Technology of Plasticity, Nagoya, Japan, Oct. 2014, pp. 1756-1761.
8 Nam, K.W., Park, S.H., Yoo, J.S., and Lee, S.M., "Analysis of Impact Characteristics of Bonded Dissimilar Materials for Center Pillar," Transactions of the Korean Society of Mechanical Engineers-A, Vol. 36, No. 8, 2012, pp. 929-934.   DOI
9 Lee, I.C., Lee, T.K., and Jang, D.H., "Development Process of Side Impact Beam for Automotive Light-Weighting Door using Sheet Type," Transactions of Materials Processing, Vol. 24, No. 2, 2015, pp. 130-137.   DOI
10 Nam, K.W., Park, S.H., Lee, K.H., and Lee, M.Y., "Mechanical Properties of Laser-Welded Multi-Material Tailor-Welded Blanks," Transactions of the Korean Society of Mechanical Engineers-A, Vol. 36, No. 8, 2012, pp. 857-863.
11 Toeh, E.R., and Lund, A.K., "IIHS Side Crash Test Ratings and Occupant Death Risk in Real-World Crashes," Traffic Injury Prevention, Vol. 12, No. 5, 2011, pp. 500-507.   DOI
12 Hill, R., "A Theory of the Yielding and Plastic Flow of Anisotropic Metals," Proceeding of the Royal Society, Series A, Vol. 193, 1948.
13 Ghadianlou, A., and Abdullag, S.B., "Crashworthiness Design of Vehicle Side Door Beams under Low-speed Pole Side Impacts," Thin-Walled Structures, Vol. 67, 2013, pp. 25-33.   DOI