Computational fatigue life prediction of continuously fibre reinforced multiaxial composites
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- Magna Powertrain Engineering Center Steyr
Abstract
The potential of a fatigue-life prediction method for continuously fibre reinforced carbon/epoxy laminates has been investigated. Stress analysis conducted with a finite element solver in combination with the experimentally measured anisotropic S–N curves was used as input parameters. Subsequently, lifetime of a unidirectional and a multidirectional composite was calculated for a cyclic tension–tension load case and validated with experimental fatigue tests. The predicted lifetime of the unidirectional laminate correlated well to the experimental results. For the fatigue-life calculation of multidirectional composites, the software underestimated the experimental data. Results and possible improvements based on the presented calculations are discussed in detail.
Details
Original language | English |
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Pages (from-to) | 269-277 |
Number of pages | 9 |
Journal | Composites Part B: Engineering |
Volume | 80.2015 |
Issue number | October |
DOIs | |
Publication status | Published - 20 Jun 2015 |