Journal ArticleDOI
Influence of elastic and thermal mismatch on the local crack-driving force in brittle composites
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TLDR
In this article, an expression for the change of local K 1 value of a crackfront near circular and spherical inclusions with elastic moduli and thermal expansion coefficient different from those of the matrix is derived.Abstract:
An expression is derived for the change of localK
1 value of a crackfront near circular and spherical inclusions with elastic moduli and thermal expansion coefficient different from those of the matrix. The derivation is based on the concept of an “image stress” which is imposed on the crack, to illustrate the interaction between elastic and thermal stress concentrations developed around inclusions in a composite material and the crack-tip stress field.read more
Citations
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Crack propagation in a glass particle-filled epoxy resin
J. Spanoudakis,Robert J. Young +1 more
TL;DR: In this paper, the effect of particle/matrix adhesion on crack propagation in an epoxy resin reinforced with spherical glass particles was investigated in terms of crack pinning and blunting.
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The fracture of hybrid-particulate composites
TL;DR: In this article, the fracture behavior of hybrid-particulate composites has been examined and the mechanisms of toughening have been identified using a double-torsion test.
Journal ArticleDOI
On the fracture of brittle-matrix/ductile-particle composites
TL;DR: In this paper, a mechanism for the toughening of brittle matrices with ductile particles is presented, where the constraints imposed on the particles by the rigid matrix suppress plastic deformation of the particles at crack tips so that the main contribution to composite toughness comes from ligament formation in the matrix and their fracture behind the advancing crack front.
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Thermal expansion of rocks; some measurements at high pressure
Teng-fong Wong,W. F. Brace +1 more
TL;DR: In this article, the authors measured coefficients of thermal expansion of rocks under sufficient pressure that the strains were reversible; the coefficients obtained fell close to the theoretical bounds for polycrystalline aggregates calculated by Walsh.
Journal ArticleDOI
Crack propagation in a glass particle-filled epoxy resin Part 2 Effect of particle-matrix adhesion
J. Spanoudakis,Robert J. Young +1 more
TL;DR: In this paper, the effect of particle/matrix adhesion on crack propagation in an epoxy resin reinforced with spherical glass particles was investigated in terms of crack pinning and blunting.
References
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Journal ArticleDOI
Concentration of Stress Around Spherical and Cylindrical Inclusions and Flaws
Journal ArticleDOI
The strength of brittle materials containing second phase dispersions
TL;DR: In this paper, a comparison of the line tension effect with observed increases in strength in brittle matrix composites is made, showing that line tension is the major contribution to the strength increase for brittle obstacles.
Journal ArticleDOI
Fracture Energy and Strength Behavior of a Sodium Borosilicate Glass‐Al2O3 Composite System
TL;DR: Fracture energy and strength were determined for three series within a sodium borosilicate glass-Al2O3 dispersed composite system as discussed by the authors, and the fracture energy was determined at 77°K with the double cantilever specimen configuration.