Low-velocity Impact Characterization of Laminated Composite Materials

복합재료의 저속충격 특성

  • Han, Ji-Won (Department of Mechanical Engineering, Hoseo University)
  • 한지원 (호서대학교 공과대학 기계공학과)
  • Published : 2008.12.31

Abstract

The composite materials are widely used in the many applications of industry as well as aerospace field because of their high specific stiffness and strength which benefits the material and provides potential energy savings. However, composite materials also have a low property about external applied impact. In this paper, impact tests were conducted on different sample types(glass, carbon and kevlar composite) to obtain information such as absorbed energy and composite deformation using an instrumented impact test machine (DYNATUP 8250). 3 type samples were compared to experimental results. The data from impact test provided valuable information between the different type samples by wet lay up. This paper shows results of that kevlar composite has larger absorption energy and deformation than others.

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