Glossary
Fracture Mechanics of Composite : Delamination and Cracking

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...