A mechanical model formulated by the authors to study laminated shells with cohesive interfaces loaded dynamically is particularized here to plates deforming in cylindrical bending under quasi-static loading. The plate is modeled as an assembly of sub-layers joined by cohesive interfaces, which define actual and potential fracture surfaces. A homogenized displacement field is derived by imposing a-priori continuity conditions between sub-layers, thus reducing the number of unknowns of the problem and making it independent of the number of layers. The accuracy of the model is verified through a comparison with an exact elasticity solution.
An efficient model for laminated beams with cohesive interfaces
CAMPI, FRANCESCA;MASSABO', ROBERTA
2013-01-01
Abstract
A mechanical model formulated by the authors to study laminated shells with cohesive interfaces loaded dynamically is particularized here to plates deforming in cylindrical bending under quasi-static loading. The plate is modeled as an assembly of sub-layers joined by cohesive interfaces, which define actual and potential fracture surfaces. A homogenized displacement field is derived by imposing a-priori continuity conditions between sub-layers, thus reducing the number of unknowns of the problem and making it independent of the number of layers. The accuracy of the model is verified through a comparison with an exact elasticity solution.
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