Detailed analysis of debonding and frictional sliding in fiber-reinforced brittle matrix composites

Conference · Fri Dec 01 04:00:00 EST 1995

OSTI ID:135770

Liu, Y F; Kagawa, Y ^[1]

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1. Univ. of Toyko (Japan)

Using axisymmetric cylindrical composite model, a comprehensive finite element analysis was carried out for fiber pullout and crack bridging conditions. The analysis completely satisfied the mechanical boundary conditions and mechanical continuities over fiber-matrix interface. Energy release rate for a debonding crack tip was calculated. Residual stresses due to thermal expansion mismatch and the interfacial Coulomb frictional shear stress transfer at the debonded interface were considered in the calculations. The debond length was determined based on the energy release rate analysis. The stress distributions along the fiber-matrix interface and the singular stress field in the crack tip were also obtained. Discussions were made on the calculated results.

• OSTI ID: 135770
• Report Number(s): CONF-9508127--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS
BOUNDARY CONDITIONS
COMPOSITE MATERIALS
CRACKS
INTERFACES
MATHEMATICAL MODELS
REINFORCED MATERIALS
RESIDUAL STRESSES
SHEAR
THERMAL EXPANSION