Abstract
The paper gives a brief introduction to the techniques of numerical modelling developed and used by the Composite systems and adhesion research group (COSARGUB) at Brussels Free University (VUB). These techniques involve identification and subsequent modelling of both linear elastic and viscoelastic response of structural elements and consider either (quasi) static or dynamic response. A first part describes the use of natural vibration patterns in structural stiffness identification. The paper covers applications to laminated plates, in particular their structural stiffness characterisation, combining both numerical (Rayleigh-Ritz or finite element method) and experimental techniques (modal analysis). A second part describes the approach of numerical viscoelastic characterisation through modal analysis, in particular through critical damping ratios measurements. Some attention is also dedicated to more recently developed descriptions of stiffness and strength properties, taking into account the quite important scatter in experimental observations through statistical finite element methods (SFEM). An illustration of the concepts is given for the analysis of an adhesive joint.
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De Patrick, W.W. (1993). The Bridge between Experimental and Numerical Techniques: Numerical Modelling of Linear Elastic and Viscoelastic Response of Composite Structures. In: Dijksman, J.F., Nieuwstadt, F.T.M. (eds) Topics in Applied Mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2090-6_3
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DOI: https://doi.org/10.1007/978-94-011-2090-6_3
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