Experimental Determination of Flaw Shapes and Stress Intensity Distributions; Conditions for Application to Composite Materials

1982 ◽  
pp. 441-450
Author(s):  
C. W. Smith
Keyword(s):  
Stress Intensity ◽  
Composite Materials ◽  
Experimental Determination

Interfacial Characterisation in Transparent Spinel Matrix Reinforced by SiC Fibre

2009 ◽  
Vol 409 ◽  
pp. 252-259 ◽  
Author(s):  
Zdeněk Chlup ◽  
Ivo Dlouhý ◽  
Selen Gürbüz ◽  
Arcan F. Dericioglu ◽  
Vladislav Kozák
Keyword(s):  
Fracture Toughness ◽  
Composite Materials ◽  
Experimental Determination ◽  
Fracture Behaviour ◽  
Composite Ceramics ◽  
Final Fracture ◽  
Chevron Notch ◽  
Interface Characteristics ◽  
Propagating Crack

The behaviour of a propagating crack when an interface is present is a key feature in composite materials. This interaction usually predetermines final fracture behaviour of the material. In case of ceramic based composites (particle, fibre reinforced, laminates etc.) knowledge about properties of the interface and/or interlayer is usually unknown due to difficulties associated with their experimental determination. The aim of this work is to indicate a possible way for the determination of interface characteristics suitable as inputs for numerical calculations. The introduced testing methodology was tested on spinel composite ceramics reinforced by unidirectional SiC fibre. The adopted method for fracture toughness determination is using a chevron notch technique. Additionally, fractographical techniques were used when interpreting the measured values.

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