Volume 33 Issue 07
Jul.  2007
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He Chenghong, Zhang Zuoguang, Li Yubin, et al. Impact energy absorption and dynamic viscoelasticity of composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(07): 851-855. (in Chinese)
Citation: He Chenghong, Zhang Zuoguang, Li Yubin, et al. Impact energy absorption and dynamic viscoelasticity of composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(07): 851-855. (in Chinese)

Impact energy absorption and dynamic viscoelasticity of composites

  • Received Date: 20 Jun 2006
  • Publish Date: 31 Jul 2007
  • The energy absorptions of composite laminates reinforced respectively by glass fiber, carbon fiber, aramid fiber, and UHMWPE fiber (separately named as GFRP, CFRP, AFRP and DFRP), were investigated under the low velocity impact. The load sensibilities on dynamic viscoelasticity of composite fiber bundles of these four kinds of fibers were analyzed by using the EPLEXOR500 dynamic mechanical thermal analyzer under high loads. The impact tests show that the impact energy absorption is close related to the fiber properties and failure modes. The impact energy absorptions of AFRP and DFRP laminates through ductile failures are much higher than those of GFRP, and CFRP laminates through brittle failures. Dynamic mechanical thermal analysis of composite fiber bundles show the load effects as that storage modulus increase and loss tangents decrease with the increasing static load, while the case is just reverse with the increasing dynamic load. In these effects, the organic fibers exhibit more serious load sensibilities and non-linearity than the inorganic fibers. These four laminates show the same sequence DFRP>AFRP>GFRP>CFRP on energy absorption as the load sensibility of storage modulus or the value of loss tangent of composite fiber bundles. This reflectes the correlation of the macroscopic impact performance and viscoelasticity which is close associated with material microstructure.

     

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  • [1] Sanchez-Saez S, Barbero E, Zaera R, et al. Compression after impact of thin composite laminates[J]. Composites Science and Technology, 2005, 65(13):1911-1919 [2] Christoforou A P. Impact dynamics and damage in composite structures[J]. Composite Structures, 2001, 52(2):181-188 [3] Richardson M O W, Wisheart M J. Review of low-velocity impact properties of composite materials[J]. Composites Part A:Applied Science and Manufacturing, 1996, 27(12):1123-1131 [4] 关志东,郦正能,寇长河,等.复合材料层板低速冲击损伤有限元模拟[J].北京航空航天大学学报,1999,25(1):37-40 Guan Zhidong, Li Zhengneng, Kou Changhe, et al. Dynamic simulation for composite laminates damage process due to low velocity impact [J]. Journal of Beijing University of Aeronautics and Astronautics, 1999, 25(1):37-40(in Chinese) [5] 刘安华,龚克成.高分子材料黏弹过程的混沌运动[J].高分子材料科学与工程,2001,17(1):11-15 Liu Anhua, Gong Kecheng. Chaotic movement of viscoelastic process in macromolecular materials[J]. Polymer Materials Science and Engineering, 2001,17(1):11-15(in Chinese) [6] Lazan B J. Behavior of plastics under vibrations[J]. Modern Plastics, 1942(20):83-88, 136-138 [7] Payne A R. The dynamic properties of carbon black-loaded natural rubber vulcanizates[J]. Journal of Applied Polymer Science, 1962, 19(6):57-63 [8] Lee T H,Freddy Y C Boey, Loh N L. Characterization of a fiber-reinforced PPS composite by dynamic mechanical analysis:effect of aspect ratio and static stress[J]. Composites Science and Technology, 1993, 49(3):217-223 [9] Alvarez V A, Valdez M E, Vazquez A. Dynamic mechanical properties and interphase fiber/matrix evaluation of unidirectional glass fiber/epoxy composites[J]. Polymer Testing, 2003, 22(6):611-615 [10] 张义同.热黏弹性理论[M].天津:天津大学出版社,2002 Zhang Yitong. Theory of thermo-viscoelasticity [M]. Tianjin:Tianjin University Press, 2002(in Chinese)
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