Damage mechanics of interfacial media: Basic aspects, identification and application to delamination

Olivier Allix (1) , Pierre Ladevèze (1)

1 LMT - Laboratoire de Mécanique et Technologie

This chapter presents the development of a model to bridge between damage mechanics and delamination by including all the damage mechanisms in delamination analysis. For this, a damage meso-modeling that includes both inner layer damage mechanisms and interracial ones is used. Delamination often appears as the result of interactions among different damage mechanisms, such as fiber-breaking, transverse microcracking, and debonding of the adjacent layers themselves. At the meso-level, the laminate is described as a stacking sequence of inelastic and damageable homogeneous layers throughout the thickness and of damageable interlaminar interfaces. One limitation of the meso-modeling is that the fracture of the material is described by means of only two types of macrocracks: (1) delamination cracks within the interfaces and (2) cracks, orthogonal to the laminate, with each cracked layer being completely cracked in its thickness. The ideas and framework that govern the interface damage modeling are similar to those which are used for deriving the layer damage modeling.

Domaines: Mécanique des matériaux [physics.class-ph]

Olivier Allix, Pierre Ladevèze. Damage mechanics of interfacial media: Basic aspects, identification and application to delamination. Studies in Applied Mechanics, 1996, 44, pp.167-188. ⟨10.1016/S0922-5382(96)80010-9⟩. ⟨hal-01759147⟩