A Consistent Higher-Order Isogeometric Shell Formulation
Daniel Schöllhammer,
Benjamin Marussig,
Thomas-Peter Fries
Abstract:Shell analysis is a well-established field, but achieving optimal higher-order convergence rates for such simulations is a difficult challenge. We present an isogeometric Kirchhoff-Love shell framework that treats every numerical aspect in a consistent higher-order accurate way. In particular, a single trimmed B-spline surface provides a sufficiently smooth geometry, and the non-symmetric Nitsche method enforces the boundary conditions. A higher-order accurate reparametrization of cut knot spans in the paramet… Show more
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