HAL CCSD
Fatigue life study of laminated composites carbon-epoxy manufactured from unidirectional plies and 2D-woven plies combining thermo-mechanical analysis and a residual strength model
Demilly, K.
Marco, Yann
Le Saux, V.
Dolo, G.
Carrere, Nicolas
Billaudeau, E.
Pannier, Yannick
Riou, M.
Naval Group
Institut de Recherche Dupuy de Lôme (IRDL) ; École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS)
Ecole Nationale Supérieure de Mécanique et d'Aérotechnique [Poitiers] (ISAE-ENSMA)
International audience
ISBN: 978-297016140-0
ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Lausanne (CH), Switzerland
Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
hal-04045295
https://ensta-bretagne.hal.science/hal-04045295
https://ensta-bretagne.hal.science/hal-04045295
20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022, Jun 2022, Lausanne (CH), Switzerland. pp.765-768
en
Carbon
Curve fitting
Fatigue testing
Temperature measurement
Weibull distribution
[SPI.MAT]Engineering Sciences [physics]/Materials
[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]
info:eu-repo/semantics/conferenceObject
Conference papers
Long-term durability under repeated mechanical loading is a major criterion for design of composite structures. The development of a fatigue criterion faces two major difficulties: (i) the proposal of a load/life curve (S-N curve) describing the natural dispersion of the fatigue tests and (ii) the duration of these tests. The goal of the study is to combine the Sendeckyj's approach based on a so-called residual strength that fits S-N curve and associates a failure probability [1], and a self-heating-based method that estimate a mean S-N curve from the thermal dissipation, determined from temperature measurements on a single sample [2]. The fatigue lifetime for high cycles loading is estimated by the heat-build up protocol. Quasi-static tests and a few fatigue tests are used to estimate the failure distribution based on a two-parameters Weibull model.
2022-06-26