Virtual testing applied to transverse multiple cracking of tows in woven ceramic composites
Langue
en
Article de revue
Ce document a été publié dans
Mechanics Research Communications. 2011, vol. 38, n° 8, p. 579-585
Elsevier
Résumé en anglais
The present paper proposes a method of virtual testing with a view to investigating the local response of tows within textile ceramic matrix composite (CMC) under various loading conditions. The method was developed on 2D ...Lire la suite >
The present paper proposes a method of virtual testing with a view to investigating the local response of tows within textile ceramic matrix composite (CMC) under various loading conditions. The method was developed on 2D woven SiC/SiC composites. It capitalizes on knowledge on mechanical damage phenomenology and data established in previous works. It is applied to isolated transverse tows subjected to uniaxial loading by parallel longitudinal tows. The transverse tows contain heterogeneities like matrix voids, fibres and interphases. Mesh for finite element analysis is constructed from micrographs of composite cross section. Cracks were introduced into the mesh for simulation of multiple cracking. Transverse tow tensile behavior and data on distributions of flaw populations were derived from finite element computations of stress-state. Results were compared to experimental observations. © 2011 Elsevier Ltd. All rights reserved.< Réduire
Mots clés en anglais
Finite element method
Matrix algebra
Experimental observation
Composite cross section
Ceramic matrix composites
Ceramic composites
Ceramic materials
Virtual testing
Weaving
Population statistics
Finite element computations
Loading condition
Local response
matrix
Mechanical damages
Multiple cracking
SiC/SiC composites
Tensile behaviors
Uni-axial loading
Virtual materials
Origine
Importé de halUnités de recherche