Elastic shear moduli of brittle matrix composites with interfacial debonding

Conference · Fri Dec 30 23:00:00 EST 1994

OSTI ID:89855

Yuan, F G ^[1]; Pagano, N J ^[2]

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1. North Carolina State Univ., Raleigh, NC (United States). Dept. of Mechanical and Aerospace Engineering
2. Wright Laboratory, Wright-Patterson AFB, OH (United States). Mechanics and Surface Interaction Branch

Elastic shear moduli of brittle matrix composites with interfacial debonding are studied. Compatibility displacement boundary conditions between representative volume elements are imposed through finite element analyses. Comparisons of the moduli between the full RVE model and quarter cell model are made. Parametric studies assessing the effect of the debonding, the shear moduli ratios in the constituents and the fiber volume fractions on the composite shear moduli are also presented. Results show that the commonly used quarter cell model overestimate the moduli. The disparity increases as the rigidity of the fibers or fiber volume fraction increases.

• OSTI ID: 89855
• Report Number(s): CONF-9409291--; ISBN 1-56676-220-0
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS
BOUNDARY CONDITIONS
BRITTLENESS
COMPOSITE MATERIALS
FAILURES
FIBERS
FINITE ELEMENT METHOD
INTERFACES
MATHEMATICAL MODELS
SHEAR PROPERTIES
STRAINS
STRESSES