Norm

NEN-EN 13234:2006 Ontw. en

Technische keramiek - Mechanische eigenschappen van keramische composieten bij omgevingstemperatuur - Evaluatie van de weerstand tegen scheurvoortplanting door beproeven van kerfgevoeligheid

  • Deze norm is ingetrokken sinds 20-11-2006

23,50

Over deze norm

Status Ingetrokken
Aantal pagina's 15
Commissie Technische keramiek
Gepubliceerd op 01-04-2006
Taal Engels
This European Standard describes a method for the classification of ceramic matrix composite (CMC) materials with respect to their sensitivity to crack propagation using tensile tests on notched specimens with different notch depths. Two classes of ceramic matrix composite materials can be distinguished: materials whose strength is sensitive to the presence of notches and materials whose strength is not affected. For sensitive materials, this European Standard defines a method for determining an equivalent fracture toughness. The parameter, Keq, is defined as the fracture toughness of a homogeneous material which presents the same sensitivity to crack propagation as the ceramic matrix composite material which is being considered. The definition of the Keq parameter offers the possibility to compare ceramic matrix composite materials with other materials with respect to sensitivity to crack propagation. For notch insensitive materials, the concept of Keq does not apply. This European Standard applies to all ceramic matrix composites with a continuous fibre reinforcement, unidirectional (1 D), bidirectional (2 D), and tridirectional (x D, where 2 x 3), loaded along one principal axis of reinforcement.

Details

ICS-code 81.060.30
Nederlandse titel Technische keramiek - Mechanische eigenschappen van keramische composieten bij omgevingstemperatuur - Evaluatie van de weerstand tegen scheurvoortplanting door beproeven van kerfgevoeligheid
Engelse titel Advanced technical ceramics - Mechanical properties of ceramic composite at ambient temperature - Evaluation of the resistance to crack propagation by notch sensitivity testing
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