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Impact Collapse Characteristic of CFRP Side Member according to Interface Number for Crashworthiness Improvement

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한국정밀공학회 2013년도 춘계학술대회논문집

충돌성능 향상을 위한 CFRP 사이드 부재의 계면 수 변화에 따른

충격압궤특성

Impact Collapse Characteristic of CFRP Side Member according to

Interface Number for Crashworthiness Improvement

*

황우채

1

,

#

양인 영

1

, 임광희

2

,이 행 남

3

*W. C. Hwang

1

,

#

I. Y. Yang(iyyang@chosun.ac.kr)

1

, K. H. Im

2

, H. N. Lee

3

1조선대학교 기계설계공학과, 2우석대학교 자동차공학과, 3조선대학교 기계공학과

Key words : CFRP, Collapse mode, Impact collapse crashworthiness, Interface number

1. 서론

, , , . . , , , , , .1-3 .

CFRP(Carbon Fiber Reinforced Plastic) , .

2. 시험편

1.22~1.8mm 󰡒ㄷ󰡓 = (100~140) × (50~100)mm, = (500~700) . 1/4 = 30 × 30mm, = 12mm CFRP . Fig. 1 . , CFRP CFRP 8 0° [+θn/-θn] . 2, 3, 4, 6 7 .

3. 압궤실험

SHIMADZU (AG-1S, 100kN) , , 10mm/min . , , (end ef-fects) (120mm) 50%(60mm) . .

1377

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한국정밀공학회 2013년도 춘계학술대회논문집

Fig. 1 Configuration of the CFRP double hat shaped structural member .

4. 결론 및 고찰

CFRP (2, 3, 4, 6, 7) ․ . 1. CFRP 6 7 . 2. CFRP . , 4 . "ㄷ" . 2I 3I 4I 6I 7I 0 20 40 60 80 100 Abs o rbed e n ergy per uni t ma ss[k J/ kg] Interface number I=Interface

Fig. 2 Relationship between interface number and absorbed energy per unit mass for CFRP double hat shaped member (Static)

2I 3I 4I 6I 7I 0 20 40 60 80 100 Total abs o rbed e n ergy pe r uni t mass[k J/ kg] Interface number I=Interface

Fig. 3 Relationship between interface number and absorbed energy per unit mass for CFRP double hat shaped member (Impact)

참고문헌

1. K. S. Lee, K. H. Im, I. Y. Yang, "Experimental eval-uation of the crashworthiness for lightweight com-posite structural member," Thin Solid Films, Vol. 518, Issue 20, pp. 5637-5641, 2010.

2. Cha, C. S., Kang, J. Y. and Yang, I. Y., "Axial Impact Collapse Analysis of Spot Welded Hat shaped Section member," KSME International Journal, Vol. 15. pp. 180~191. 2001.

3. W. C Hwang, K, S, Lee., Y, J, Yang. and I, N, Yang., "An Experimental Study on the Optimum Collapse Characteristics of Composite Structural Member under Impact Loading," IJPEM, Vol. 12, No. 3, pp. 521-526, 2010.

수치

Fig. 1 Configuration of the CFRP double hat shaped  structural member . 4. 결론 및 고찰 CFRP (2, 3, 4, 6, 7)  ․

참조

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