Crack-wake interfacial debonding criteria for fiber-reinforced ceramic composites

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Acta Materialia

DOI:https://doi.org/10.1016/1359-6454(95)00369-X· OSTI ID:271765

Hsueh, C H ^[1]

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1. Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

The condition for progressive debonding with friction along the debonded interface is considered for the bridging fiber in the crack-wake of fiber-reinforced ceramic composites. The energy-based criterion is adopted in the present study to analyze the debond length, the crack-opening displacement, and the displacement of the composite due to interfacial debonding. The results are identical to the previous results obtained from a simple approach, in which interfacial debonding is assumed to occur when the mismatch in the axial strain between the fiber and the matrix reaches a critical value. Furthermore, the mismatch-strain criterion is found to bear the same physical meaning as the strength-based criterion.

• Sponsoring Organization: USDOE
• OSTI ID: 271765
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 6 Vol. 44; ISSN XZ504Y; ISSN 1359-6454
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BONDING
CERAMICS
COMPOSITE MATERIALS
CRACKS
ENERGY
FIBERS
FRACTURE MECHANICS
FRICTION
INTERFACES
MECHANICAL PROPERTIES
NUMERICAL ANALYSIS
STRAINS
STRESSES