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.
| Original language | English |
|---|---|
| Pages (from-to) | 21-30 |
| Journal | Journal of Metals, Materials and Minerals |
| Volume | 22 |
| Issue number | 1 |
| State | Published - 2012 |