6533b837fe1ef96bd12a2003

RESEARCH PRODUCT

A continuum damage model to simulate failure in composite plates under uniaxial compression

Giuseppe CatalanottiDavide TuminoFrancesco Cappello

subject

Materials sciencePolymers and PlasticsContinuum (measurement)General Chemical EngineeringOrganic ChemistryComposite numberUniaxial compressionmodelling and simulationpolymer compositeMaterials ChemistryPolymer compositesmechanical propertiePhysical and Theoretical ChemistryComposite materialSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria Industriale

description

Experimental investigations and numerical simulations are performed in order to numerically predict the buckling behaviour of thin composite laminated specimens. Experiments are aimed at two objectives: the first is to completely characterize the carbon/epoxy material under simple loading configurations, the second is to test this material in buckling and post-buckling situations. The data collected with the first campaign of experiments are used to obtain the strength parameters required to define a damage model based on the failure theory by Tsai-Wu. This model is implemented in a Finite Element (FE) code and numerical simulations of buckling are executed for unidirectional and cross-ply laminates; results are in good agreement with experiments both in terms of determination of the critical loads and prediction of failure during post-buckling.

https://doi.org/10.3144/expresspolymlett.2007.4