Low-cycle fatigue of thermally-cycled carbon-epoxy composite

Authors

  • Ya. B. Unigovski Department of Engineering Ben-Gurion University of the Negev
  • A. Grinberg Department of Engineering Ben-Gurion University of the Negev
  • E. M. Gutman Department of Engineering Ben-Gurion University of the Negev
  • R. Shneck Department of Engineering Ben-Gurion University of the Negev

Keywords:

Carbon fiber laminate, Fatigue, Thermal cycling

Abstract

Investigation of low-cycle fatigue of composites is of vital importance for the design of structural components. In this study, the effects of thermal cycling on low-cycle fatigue behavior of carbon-epoxy laminate are investigated in a purely bending mode at strain ratios of -1 and 0.1. It is found that a very small increase in the plastic strain amplitude catastrophically shortens the fatigue life N of the composite determined as a number of cycles corresponding to 0.9 of the initial force. The preliminary thermal cycling of the composite at the temperature varied from 180°C to ?195.8°C shortens N values in comparison to the reference at small strains.

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Published

2012-06-30

How to Cite

[1]
Y. B. Unigovski, A. Grinberg, E. M. Gutman, and R. Shneck, “Low-cycle fatigue of thermally-cycled carbon-epoxy composite”, J Met Mater Miner, vol. 22, no. 1, Jun. 2012.

Issue

Vol. 22 No. 1 (2012)

Section

Original Research Articles

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