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6. 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.
Elastic strain energy; Énergie de déformation élastique
Energy due to elastic deformation/stress of a material...
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Glossary
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Bibliography
Standards and norms
- Standard test method for mode I interlaminar fracture toughness of unidirectional continuous fiber reinforced composite materials, ASTM International - ASTM D5528-33 - 2013
- Standard test method for plane strain-strain fracture toughness of metallic materials, ASTM International - ASTM E399-90 - 1997
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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