The Impact Stresses and Wave Propagation of Laminated Composites

  • Ahn, Kook Chan (Department of Mechanical Design Engineering, Jinju National University) ;
  • Kim, Doo Hwan (Department of International Livestock Industry, Jinju National University) ;
  • Lee, Gwang Seok (Department of Electronic Engineering, Jinju National University)
  • Published : 2002.12.01

Abstract

This paper demonstrates the impact stresses and wave propagation characteristics of glass/epoxy laminates subjected to the low-velocity impact by a steel ball theoretically and experimentally. A plate finite element model in conjunction with experimental contact laws is used for the theoretical investigation. The specimens for statical indentation and impact test are composed of $[0/45/0/-45/0]_28 and [90/45/90/-45/90]_28$ stacking sequences and have clamped-simply supported boundary conditions. Finally, these two results are compared and then the impulsive stress and wave propagation characteristics of this laminated composite are studied.

Keywords

References

  1. W. Goldsmith, Impact, Edward Arnold Ltd., London, 1960
  2. F.C. Moon, 'A Critical Survey of Wave Propagation and Impact in Composite Matehals', NASA CR-121226, 1973
  3. C.T. Sun and S. Chattopadhyay, 'Dynamic Response of Anisotropic Laminated Plates under Initial Stress to Impact of a Mass', Journal of Applied Mechanics, Trans. ASME, pp. 693-698, 1975
  4. C.T. Sun and S.N. Huang, 'Transverse Impact Prob-lems by Higher Order Beam Finite Element', Comput-ers & Structures, Vol. 5, pp. 297-303, 1975 https://doi.org/10.1016/0045-7949(75)90035-8
  5. I.M. Daniel, T. Liber and R.H.L aBedz, 'Wave Prop-agation in Transversely Impacted Composite Lami-nates' Experimental Mechanics, pp. 9-16, 1979
  6. T. Hayashi, R. Ugo and Y. Morimoto, 'Expehmental Observation of Stress Waves Propagating in Laminated Composites', Experimental Mechanics, pp. 169-174, 1986
  7. N. Taketa, R.L. Sierakowski, L.E. Malvern, 'Wave Propagation Experiments on Ballistically Im-pacted Composite Laminates', Journal of Composite Materi-als, Vol. 15, pp. 157-174, 1981 https://doi.org/10.1177/002199838101500206
  8. K.C. Ahn, M.S. Kim and G.N. Kim, 'Impact Analysis of Laminate Composite Beams by the Finite Element Method', Transaction of KSME, Vol. 12, No. 4, pp. 652-661, 1988
  9. K.C. Ahn, M.S. Kim and G.N. Kim, 'A Study on the Impact Behaviour of the Beam-Like Laminate Com-posites by Beam and Plate Theory', Transaction of KSME, Vol. 13, No. 1, pp. 1031-1036, 1989
  10. E.L. Wilson and R.W. Clough, 'Dynamic Response by Step by Step Matrix Analysis', Symp. on Use of Com-puters in Civil Engineemig, 1962