Shear damage mechanisms in a woven, Nicalon-reinforced ceramic-matrix composite

Journal Article · Fri Jan 31 23:00:00 EST 1997 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1997.tb02838.x· OSTI ID:483659

Keith, W P; Kedward, K T ^[1]

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1. Univ. of California, Santa Barbara, CA (United States). Mechanical Engineering Dept.

The shear response of a Nicalon-reinforced ceramic-matrix composite was investigated using Iosipescu tests. Damage was characterized by X-ray, optical, and SEM techniques. The large inelastic strains which were observed were attributed to rigid body sliding of longitudinal blocks of material. These blocks are created by the development and extension of intralaminar cracks and ply delaminations. This research reveals that the debonding and sliding characteristics of the fiber-matrix interface control the shear strength, strain softening, and cyclic degradation of the material.

• Sponsoring Organization: USDOE
• OSTI ID: 483659
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 2 Vol. 80; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
ALUMINIUM PHOSPHATES
COMPOSITE MATERIALS
CRACKS
DAMAGE
FIBERS
INTERFACES
MATHEMATICAL MODELS
SHEAR PROPERTIES
SILICON CARBIDES
STRAINS
VALIDATION