ON MODELLING OF DELAMINATION IN LAMINATED PLATES (AN ALTERNATIVE TO FRACTURE MECHANICS APPROACH)
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The unilateral contact approach is used to model the initial debonding and subsequent delamination of two-layer or multi-layer symmetric laminated plates under transverse loads. The mathematical formulation of the approach and associated finite element model are presented. The bond material (or adherent) is modelled as a continuum that has a uniaxial (in the transverse direction) elastic response. The flexural behaviour of the plate is modelled by means of the Hencky-Mindlin type shear deformation theory. Two sample problems are presented. The relationship between the brittle fracture mechanics approach and the present approach is also discussed.
author list (cited authors)
Reddy, J. N., Frederick, D., & Grimaldi, A.