Matrix cracking in crossply ceramic matrix composites under quasi-static and cyclic loading

Journal Article · Tue Mar 01 04:00:00 EST 1994 · Acta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-7151(94)90281-X· OSTI ID:5047076

Pryce, A W; Smith, P A ^[1]

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1. Univ. of Surrey (United Kingdom). Dept. of Materials Science and Engineering

Experimental data are presented for the development of 90[degree] ply and 0[degree] ply cracking in two crossply silicon carbide fiber/calcium aluminosilicate matrix laminates under quasi-static loading. Under mechanical fatigue loading it is found that there is an increase in ply crack densities and a corresponding laminate stiffness reduction with cycling. Possible mechanisms to account for these observations are proposed. A model is presented which describes the stress/strain behavior as a function of crack densities based on assumptions of frictional load transfer between fiber and matrix in the longitudinal plies and elastic bonding between the longitudinal and transverse plies.

• OSTI ID: 5047076
• Journal Information: Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 42:3; ISSN 0956-7151; ISSN AMATEB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
CALCIUM COMPOUNDS
CALCIUM SILICATES
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CRACKS
DYNAMIC LOADS
FRACTURE PROPERTIES
MATERIALS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
OXYGEN COMPOUNDS
SILICATES
SILICON CARBIDES
SILICON COMPOUNDS
STATIC LOADS