Mechanical Behavior of Fibrous Ceramic Matrix Composites under Constant Tensile Load. Influence of Fibre-Matrix Interface Properties

1997 ◽  
Vol 132-136 ◽  
pp. 1934-1937
Author(s):  
B. Roy ◽  
M.L. Bouchetou ◽  
Marc Huger ◽  
D. Fargeot ◽  
Christian Gault
Keyword(s):  
Mechanical Behavior ◽  
Tensile Load ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Interface Properties ◽  
Matrix Composites ◽  
Matrix Interface ◽  
Fibre Matrix ◽  
Constant Tensile Load

NDE Characterization and Mechanical Behavior in Ceramic Matrix Composites

2006 ◽  
Vol 321-323 ◽  
pp. 946-951 ◽  
Author(s):  
Jeong Guk Kim ◽  
Sung Tae Kwon ◽  
Won Kyung Kim
Keyword(s):  
Mechanical Behavior ◽  
Nondestructive Evaluation ◽  
Tensile Testing ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
In Situ Monitoring ◽  
Matrix Composites ◽  
Ir Camera ◽  
Qualitative Relationship ◽  
Microscopy Characterization

Several nondestructive evaluation (NDE) techniques, including ultrasonic C-scan, X-ray computed tomography (CT), and infrared (IR) thermography, were employed on ceramic matrix composites (CMCs) to illustrate defect information that might effect mechanical behavior and to analyze structural performance of CMCs. Prior to tensile testing, through C-scan and CT analyses results, the qualitative relationship between the relative ultrasonic transmitted amplitude and porosity based on CT was exhibited. An IR camera was used for in-situ monitoring of progressive damages and to determine temperature changes during tensile testing. Moreover, scanning-electron microscopy characterization was used to perform microstructural failure analyses. This paper describes the use of nondestructive evaluation (NDE) techniques to facilitate the understanding of tension behavior of CMCs.

Damping in Unidirectional and Cross-Ply Ceramic Matrix Composites With Matrix Cracks

2001 ◽  
Author(s):  
Victor Birman ◽  
Larry W. Byrd
Keyword(s):  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Interfacial Friction ◽  
Matrix Composites ◽  
Matrix Interface ◽  
Unidirectional Composites ◽  
Matrix Cracks ◽  
Dissipation Of Energy ◽  
Fiber Matrix Interface ◽  
Fiber Matrix

Abstract The paper elucidates the methods of estimating damping in ceramic matrix composites (CMC) with matrix cracks. Unidirectional composites with bridging matrix cracks and cross-ply laminates with tunneling cracks in transverse layers and bridging cracks in longitudinal layers are considered. It is shown that bridging matrix cracks may dramatically increase damping in unidirectional CMC due to a dissipation of energy along damaged sections of the fiber-matrix interface (interfacial friction). Such friction is absent in the case of tunneling cracks in transverse layers of cross-ply laminates where the changes in damping due to a degradation of the stiffness remain small. However, damping in cross-ply laminates abruptly increases if bridging cracks appear in the longitudinal layers.

Mechanical behavior of glass and Blackglas® ceramic matrix composites

1997 ◽  
Vol 45 (12) ◽  
pp. 5317-5325 ◽  
Author(s):  
R.H. Stawovy ◽  
S.L. Kampe ◽  
W.A. Curtin
Keyword(s):  
Mechanical Behavior ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Matrix Composites

scholarly journals Effect of Cyclic Fatigue Loading on Matrix Multiple Fracture of Fiber-Reinforced Ceramic-Matrix Composites

Ceramics ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 327-346 ◽  
Author(s):  
Longbiao Li
Keyword(s):  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Fatigue Loading ◽  
Cyclic Fatigue ◽  
Matrix Cracking ◽  
Matrix Composites ◽  
Matrix Interface ◽  
Multiple Fracture ◽  
Fiber Matrix Interface ◽  
Fiber Matrix

In this paper, the effect of cyclic fatigue loading on matrix multiple fracture of fiber-reinforced ceramic-matrix composites (CMCs) is investigated using the critical matrix strain energy (CMSE) criterion. The relationships between multiple matrix cracking, cyclic fatigue peak stress, fiber/matrix interface wear, and debonding are established. The effects of fiber volume fraction, fiber/matrix interface shear stress, and applied cycle number on matrix multiple fracture and fiber/matrix interface debonding and interface wear are discussed. Comparisons of multiple matrix cracking with/without cyclic fatigue loading are analyzed. The experimental matrix cracking of unidirectional SiC/CAS, SiC/SiC, SiC/Borosilicate, and mini-SiC/SiC composites with/without cyclic fatigue loading are predicted.

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