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Axisymmetric peridynamic analysis of crack deflection in a single strand ceramic matrix composite

Authors :
Craig Przybyla
Samir Naboulsi
Erdogan Madenci
Cody Mitts
Source :
Engineering Fracture Mechanics. 235:107074
Publication Year :
2020
Publisher :
Elsevier BV, 2020.

Abstract

This study employs Peridynamic (PD) theory to predict crack deflection in axisymmetric ceramic matrix composites (CMC). It specifically employs the weak form of PD equations of motion which enables the direct imposition of natural and essential boundary conditions. The results indicate that the critical stress ratio between the coating and matrix have a strong influence on crack deflection in a CMC. Also, it was observed that the smaller this ratio is, the earlier the crack deflection in the fiber coating occurs.

Details

ISSN :
00137944
Volume :
235
Database :
OpenAIRE
Journal :
Engineering Fracture Mechanics
Accession number :
edsair.doi...........9afbd0088c3920116957c189884c825e
Full Text :
https://doi.org/10.1016/j.engfracmech.2020.107074