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  A FINITE ELEMENT MODEL FOR DELAMINATION IN COMPOSITE PLATES
 
 
Titel: A FINITE ELEMENT MODEL FOR DELAMINATION IN COMPOSITE PLATES
Auteur: Rinderknecht, S.
Kroplin, B.
Verschenen in: Mechanics of advanced materials & structures
Paginering: Jaargang 2 (1995) nr. 1 pagina's 19-47
Jaar: 1995-03-01
Inhoud: A finite element model for the calculation of the static load-deflection behaviour of plates containing a delamination is presented. The introduction of a process layer, in which the connection between two laminate parts can be fixed or controlled, allows the use of one element across the laminate thickness in both the undamaged and delaminated area. To avoid very high numerical costs, the model is based on the simplifying Reissner-Mindlin plate theory and not on the general three-dimensional elasticity theory. The element formulation leads to the possibility of considering contact in a very simple way and applying both fracture and damage mechanics to estimate delamination growth. Although generally, a fracture mechanical mode separation as well as an exact determination of the stress state along the delamination front is not possible, the simplified model allows an efficient calculation of the load-deflection behaviour for stationary delaminations and an estimation of delamination growth with Griffith-type criteria.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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