Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Shear Impact Characteristics of Adhesively Bonded Tubular Joints

접착 조인트의 전단 충격특성에 관한 연구

  • 김용하 (국립공주대학교 기계공학과) ;
  • 박상근 (국립공주대학교 기계공학과) ;
  • 김동옥 (자동차부품연구원) ;
  • 유용문 (자동차부품연구원) ;
  • 전성식 (국립공주대학교 기계공학과)
  • Received : 2011.03.10
  • Accepted : 2012.01.31
  • Published : 2012.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

The structural adhesives have the advantage of improving automobile performances and are being applied to joining light weight materials like aluminium and composite. In order to characterize the impact behavior of structural adhesive, instrumented impact tests were performed with respect to pin-ring adhesively bonded joint specimens. Also dynamic FE analysis was carried out using LS-DYNA to compare the results with experiments.

구조용 접착제는 알루미늄이나 복합재료 같은 가벼운 재질의 접합에 적용함으로써 자동차의 경량화를 이루어 연비 및 승차감등 성능향상에 큰 효과를 얻을 수 있다. 자동차와 같이 충돌환경에 노출이 되어있는 기계 구조물에 접착제를 적용하기 위해서는 접착제의 충격특성에 관한 연구가 필수적이다. 본 연구에서는 pin-ring 타입의 접착조인트를 이용하여 접착제의 전단 충격특성에 관한 연구를 수행하였으며, 충돌해석을 하기 위해 LS-DYNA를 사용하였다.

Keywords

References

  1. Lee, D.G., Suh, N.P., Axiomatic design and fabrication of composite structures, Oxford, New York, 2006.
  2. 이태현, 신성기, "자동차 충돌해석을 위한 구조용 접착제 유한 요소 해석모델 개발," 한국자동차공학회 창립 30주년 기념 학술대회 논문집, 2008, pp. 1141-1146.
  3. ASTM Designation D950-03, Standard Test Method for Impact Strength of Adhesive bonds.
  4. 고안전 경량 Front Under Body의 기반기술 및 평가기술 개발, 산업원천기술개발사업 보고서, 지식경제부, 2010.
  5. Bezemer, A.A., Guyt, C.B., Vlot, A., "New impact specimen for adhesive: optimization of high-speed-loaded adhesive joints," Int. J. Adhesion & Adhesives, Vol. 18, 1998, pp. 255-260. https://doi.org/10.1016/S0143-7496(97)00032-8
  6. Lee, S.J., Lee, D.G., "Optimal Design of the Adhesively- Bonded Tubular Single Lap Joint," J. Adhesion, Vol. 50, 1995, pp. 165-180. https://doi.org/10.1080/00218469508014364
  7. Arenas, J.M., Narbon, J.J., Alía, C., "Optimum adhesive thickness in structural adhesives joints using statistical techniques based on Weibull distribution," Int. J. Adhesion and Adhesives, Vol. 30, 2010, pp. 160-165. https://doi.org/10.1016/j.ijadhadh.2009.12.003
  8. LS-DYNA Version 971 Keyword User's Manual, Livermore Software Technology Corporation, 2009.
  9. G.R. Cowper, P.S. Symonds, Strain hardening and strain rate effects in the impact loading of cantilever beams, Brown University, Applied Mathematics, Report, 1958.
  10. M. Huang, Vehicle crash mechanics, CRC Press, Boca Raton, 2002.
  11. Norman, T.L., Sun, C.T., "Delamination growth in composite laminates with adhesive strips subjected to static and impact loading," Composites Science and Technology, Vol. 46, 1993, pp. 203-211. https://doi.org/10.1016/0266-3538(93)90154-9
  12. Casas-Rodriguez, J.P., Ashcroft, I.A., Silberschmidt, V.V., "Damage evolution in adhesive joints subjected to impact fatigue," J. Sound and Vibration, Vol. 308, 2007, pp. 467-478. https://doi.org/10.1016/j.jsv.2007.03.088
  13. Yu, J., Wang, E., Li, J., Zheng, Z., "Static and low-velocity impact behavior of sandwich beams with closed-cell aluminum-foam core in three-point bending," Int. J. Impact Engineering, Vol. 35, 2008, pp. 885-894. https://doi.org/10.1016/j.ijimpeng.2008.01.006
  14. Kang, W.J., Cho, S.S., Huh, H., D.T. Chung, "Modified Johnson-Cook Model for Vehicle Body Crashworthiness Simulation," Int. J. Vehicle Design, Vol. 21, 1999, pp. 424- 435. https://doi.org/10.1504/IJVD.1999.005594
  15. Kang, W.J., Huh, H., "Crash Analysis of Auto-Body Structures Considering the Strain-Rate Hardening Effect," Int. J. Automotive Technology, Vol. 1, 2000, pp. 35-41.
  16. Huh, H., Kang, W.J., Han, S.S., "A Tension Split Hopkinson Bar for Investigating the Dynamic Behavior of Sheet Metals," Experimental Mechanics, Vol. 42, 2002, pp. 8-17. https://doi.org/10.1007/BF02411046
  17. Yang, L.M., Shim, V.P.W., "An analysis of stress uniformity in split Hopkinson bar test specimens," Int. J. Impact Engineering, Vol. 31, 2005, pp. 129-150. https://doi.org/10.1016/j.ijimpeng.2003.09.002

Cited by

  1. Design and Performance Evaluation of Carbon Fiber/Epoxy Composite-aluminum Hybrid Wheel for Passenger Cars vol.26, pp.6, 2013, https://doi.org/10.7234/composres.2013.26.6.386