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Applied Composite Materials

, Volume 1, Issue 4, pp 273–282 | Cite as

The effects of strain rate and CCVC interfacial layer on mechanical behaviours of CALL

  • Rao Shiguo
  • Xia Yuanming
  • Sun Kang
Article

Abstract

In this paper, the loading and loading-unloading tests of CALL and CALL (CCVC) under tensile impact have been carried out by a self-designed Rotating Circular Disk Tensile impact Apparatus. The quasi-static tension and short beam bending tests are performed on the Shimadzu-5000 testing apparatus. Experiment results show that both CALL and CALL (CCVC) have positive hybrid effect. Under quasi-static tension, the two composites have no obvious yielding until fracture, but have an obvious yielding point on the dynamic tensile stress-strain curves. The dynamic unstable fracture strain is about three times the static unstable fracture strain. The interlaminar shear strength (ISS) of CALL (CCVC) is 10 more than that of CALL. At the same time, the tensile strength and unstable fracture strain of CALL (CCVC) are also higher than that of CALL. In this paper, some conclusions are also drawn from the SEM observation of the fracture specimen surfaces.

Key words

Tensile impact CALL CCVC interfacial layer Hybrid effect Strain rate 

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Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • Rao Shiguo
    • 1
  • Xia Yuanming
    • 1
  • Sun Kang
    • 2
  1. 1.Institute of Composite MaterialsShanghai Jiaotong UniversityShanghaiP.R. China
  2. 2.Department of Modern MechanicsUniversity of Science and Technology of ChinaHefeiP.R. China

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