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CRACK SHIELDING MECHANISMS OF INTERLAYERED EPOXY MATERIALS UNDER QUASI-STATIC AND FATIGUE LOADING

Publications associées (36)

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Design of fiber/coating systems for high strength in ceramic matrix composites

William Curtin

A finite element model is used to study the stresses arising in ceramic matrix composites with different coatings and sliding interfaces. Stress concentrations in the fibers are found near matrix cracks, and their magnitudes depend on the location of the d ...

Amer Ceramic Soc2001

Tough-to-brittle transitions in ceramic-matrix composites with increasing interfacial shear stress

William Curtin

The possibility of decreasing ultimate tensile strength associated with increasing fiber/matrix interfacial sliding is investigated in ceramic-matrix composites. An axisymmetric finite-element model is used to calculate axial fiber stresses versus radial p ...

2000

Modeling brittle and tough stress-strain behavior in unidirectional ceramic matrix composites

William Curtin

A new simple model for predicting the uniaxial stress-strain behavior of a unidirectional ceramic matrix composite. including stochastic matrix crack evolution, stochastic fiber damage and ultimate failure, is presented. The model demonstrates an important ...

1998

Fracture and Interface Properties of a Composite with Long Aligned Fibers

John Botsis

Results on fracture, fatigue crack growth and debonding on compact tension specimens of a specially made composite material are reported. The specimens consisted of an epoxy matrix and layers of equally spaced long aligned glass fibers. The experimental da ...

H.-P. Rosmanith1997

This paper concerns the gage length dependence of fiber strength as established by measuring the fiber fracture stress vs. fragment length in the succession of fragments, which occur in tension testing of a single-fiber composite (s.f.c.). For fibers with ...

1994

THEORY OF MECHANICAL-PROPERTIES OF CERAMIC-MATRIX COMPOSITES

William Curtin

A theory is presented to predict the pullout work and ultimate tensile strength of ceramic-matrix composite (CMC) materials tested under uniaxial tension as functions of the underlying material properties. By assuming that the fibers fracture independently ...

1991