Factors affecting the transverse tensile strength of unidirectional continuous silicon carbide fibre reinforced 6061 aluminum

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Journal of Composite Materials; (USA)

DOI:https://doi.org/10.1177/002199839002400702· OSTI ID:6614669

Wisnom, M R ^[1]

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1. Bristol Univ. (England)

A study of the micromechanics of continuous silicon carbide fiber reinforced 6061 aluminum has been carried out using generalized plane strain nonlinear finite element analysis. An interface element has been developed enabling separate shear and tensile strengths to be assigned, with a quadratic interaction equation. Residual stresses due to manufacturing were included in the analysis. The effect on transverse tensile strength of fiber packing geometry, fiber spacing, residual stresses, interface strengths and matrix material properties were investigated. It was found that the interface strength is the most important factor. Residual stresses are beneficial, these being largely controlled by the yield strength of the matrix material at the time the residual stresses are set up. Fiber packing and spacing and matrix strength do not significantly affect predicted strength. 11 refs.

• OSTI ID: 6614669
• Journal Information: Journal of Composite Materials; (USA), Journal Name: Journal of Composite Materials; (USA) Vol. 24; ISSN JCOMB; ISSN 0021-9983
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
CARBIDES
CARBON COMPOUNDS
CERMETS
COMPOSITE MATERIALS
FIBERS
FINITE ELEMENT METHOD
MATERIALS
MECHANICAL PROPERTIES
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
REINFORCED MATERIALS
RESIDUAL STRESSES
SILICON CARBIDES
SILICON COMPOUNDS
STRESSES
TENSILE PROPERTIES