ENV 13234:1998

Advanced technical ceramics - Ceramic composites - Mechanical properties at ambient temperature - Evaluation of the resistance to crack propagation by the notch sensitivity testing ENV 13234:1998

Publication date:   Jan 30, 2004

Scope

This ENV presents a method to classify the ceramic matrix composite (CMC) materials with respect to their sensitivity to crack propagation by using tensile tests on notched specimens having different notch depths. Two classes of ceramic matrix composite materials can be distinguished: the materials for which the strength is insensitive and those for which the strength is affected by the presence of notches. For sensitive materials, this ENV allows the determination of an equivalent fracture toughness.