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Accelerated estimation of fatigue performances of thermoplastic composite material by self-heating monitoring

Abstract : Self-heating tests are an alternative experimental approach to classic fatigue tests in order to estimate the fatigue limit of materials. This experimental procedure is based on the monitoring of the self-heating of the studied material under short cyclic loading blocks. The aim is to correlate a change of the thermal behaviour of the material with the appearance of fatigue damage in the material. Acoustic emission monitoring and microscopic damage inspection could be used to confirm the accuracy of the self-heating test method. In this paper, self-heating tests are applied to a balanced 2D-woven carbon/thermoplastic composite material. In addition, quasi-static tensile tests are performed to characterize the mechanical properties of material, as well as to monitor the evolution of and the thermal field. The thermal behaviours of the material under tensile static loads and during self-heating tests are compared and found to be quite similar which opens very promising prospects as for the determination of the fatigue limit of thermoplastic composites.
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https://hal.archives-ouvertes.fr/hal-01895783
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Submitted on : Monday, October 15, 2018 - 2:57:18 PM
Last modification on : Wednesday, April 27, 2022 - 4:56:54 AM

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  • HAL Id : hal-01895783, version 1

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Laura Muller, Jean-Michel Roche, Antoine Hurmane, Catherine Peyrac, Laurent Gornet. Accelerated estimation of fatigue performances of thermoplastic composite material by self-heating monitoring. ECCM 18, Jun 2018, ATHENES, Greece. ⟨hal-01895783⟩

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