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Elias AifantisAristotle University of ThessalonikiFighting Singularities In Solids And Fluids Schrefler International Symposium on Geomechanics and Applications for Sustainable Development Back to Plenary Lectures » |
Abstract:One of the still persisting problems in both solid and fluids mechanics is to deal with singularities in the stress/strain fields or the flow field. An associated problem is the mesh-size dependence and non-convergence in finite element calculations in the material softening regime. A simple regularization method can be used to overcome both difficulties. This is shown for both elastic and plastic solids, as well as for both Newtonian and complex fluids. References:[1] E.C. Aifantis, Internal length gradient (ILG) material mechanics across scales and disciplines, Adv. Appl. Mech. 49, pp. 1-110, 2016. |
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