Computational fatigue life prediction of continuously fibre reinforced multiaxial composites

Julia Maier (Brunbauer); Christian Gaier; Gerald Pinter

doi:10.1016/j.compositesb.2015.06.002

Computational fatigue life prediction of continuously fibre reinforced multiaxial composites

Julia Maier (Brunbauer)
, Christian Gaier
, Gerald Pinter

Chair of Materials Science and Testing of Polymers (210)

Magna Powertrain Engineering Center Steyr

Research output: Contribution to journal › Article › Research › peer-review

24 Citations (Scopus)

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.

Original language	English
Pages (from-to)	269-277
Number of pages	9
Journal	Composites Part B: Engineering
Volume	80.2015
Issue number	October
DOIs	https://doi.org/10.1016/j.compositesb.2015.06.002
Publication status	Published - 20 Jun 2015

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10.1016/j.compositesb.2015.06.002

Cite this

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title = "Computational fatigue life prediction of continuously fibre reinforced multiaxial composites",

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. ",

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AU - Pinter, Gerald

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N2 - 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.

AB - 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.

U2 - 10.1016/j.compositesb.2015.06.002

DO - 10.1016/j.compositesb.2015.06.002

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