Skip to Main content Skip to Navigation
Theses

Prise en compte du vieillissement et de la fatigue dans le dimensionnement de structures en matériaux composites

Abstract : The main objective of this study is to predict initiation of delamination in carbon/polyphenylenesulfide (PPS) composite material during fatigue testing. In transportation engineering fields such as aeronautics or aerospace, composite materials have many applications because of their high strength/weight ratio. Thermoplastic matrix as PPS offer a number of advantages, like recycling, compared to conventional thermosetting resins such as epoxies. Because this material can exhibit a high crystallinity rate and high glass transition temperature. And so have very good thermomechanical properties. Nevertheless, before making structural parts in thermoplastics composites, an accurate and global knowledge of the mechanical behaviour is needed as well in static, in fatigue and aging effects. When during fatigue testing delamination, defined as the debonding between two adjacent layers occurs, very often that means a rapid and detrimental failure for the structure. Therefore, in order to establish a criterion able to predict delamination onset, fatigue tests at different stress levels and Arcan-Mines tests have been performed. This study presents a procedure to evaluate the interface strength of laminated composites when submitted to fatigue loadings. Finally we propose a reliable delamination initiation criterion and its validation for the considered material.
Document type :
Theses
Complete list of metadatas

Cited literature [12 references]  Display  Hide  Download

https://pastel.archives-ouvertes.fr/pastel-00609158
Contributor : Bibliothèque Mines Paristech <>
Submitted on : Monday, July 18, 2011 - 2:01:41 PM
Last modification on : Wednesday, October 14, 2020 - 3:52:48 AM
Long-term archiving on: : Wednesday, October 19, 2011 - 2:23:44 AM

Identifiers

  • HAL Id : pastel-00609158, version 1

Citation

Josserand Bassery. Prise en compte du vieillissement et de la fatigue dans le dimensionnement de structures en matériaux composites. Matériaux. École Nationale Supérieure des Mines de Paris, 2011. Français. ⟨NNT : 2011ENMP0014⟩. ⟨pastel-00609158⟩

Share

Metrics

Record views

1171

Files downloads

1910