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5. Glossary
Contrainte interlaminaire/intralaminaire; interlaminar/intralaminar stress
Stress between two consecutive folds (interlaminar) or within a fold (intralaminar).
Courbe R (courbe de résistance) ; R curve (resistance curve)
Generally increasing curve of crack toughness. This increase in toughness is due to the creation of the FPZ.
Cusps (horns); cusps
The term "cusps" is generally used directly to designate the wave-like or horn-shaped asperities created on a Mode II fracture surface.
Delamination
Cracking between two consecutive plies in a composite laminate.
CT (Compact Tension) test
The English term CT test, and not its French translation compact tensile test, is used...
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Bibliography
Bibliography
Standards and norms
- Standard test method for mode I interlaminar fracture toughness of unidirectional continuous fiber reinforced composite materials - ASTM D5528-33 - 2013
- Standard test method for measurement of fracture toughness - ASTM E1820-18 - 2018
- Standard test method for translaminar fracture toughness of laminated and pultruded polymer matrix composite materials - ASTM E1922-15 - 2015
- Standard test method...
Regulations
Federal Aviation Administration 25 (FAR25) – Advisory Circular 25.571, Damage tolerance and fatigue evaluation of structure (1978)
Joint Airworthiness Requirements 25 (JAR25) – Part 1: requirements, Part 2: acceptable means of compliance and interpretations (for composite structures: JAR25 § 25.603 and ACJ 25.603) (1978)
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