Scientific Computing Seminar

Date and Place: Thursdays and hybrid (live in 32-349/online via Zoom). For detailed dates see below!


In the Scientific Computing Seminar we host talks of guests and members of the SciComp team as well as students of mathematics, computer science and engineering. Everbody interested in the topics is welcome.

List of Talks

Event Information:

  • Thu

    SC Seminar: Rozan I. Rosandi

    12:00Hybrid (Room 32-349 and via Zoom)

    Rozan I. Rosandi, Differential-Algebraic Systems Group, TU Kaiserslautern

    A Riemannian Framework for the Isogeometric Shape Optimization of Thin Shells


    Structural optimization is concerned with finding an optimal design for a structure under mechanical load. In this talk, we consider thin elastic shell structures based on the linearized Koiter model, whose shape can be described by a surface embedded in Euclidean space. We regard the set of all embeddings of the surface as an infinite-dimensional Riemannian manifold and perform optimization in this setting using the Riemannian shape gradient. Non-uniform rational B-splines (NURBS) are employed to parameterize the surface and solve the underlying equations that govern the mechanical behavior of the shell via isogeometric analysis (IGA). By representing NURBS patches as B-spline patches in projective space, NURBS weights can also be incorporated into the optimization routine. We discuss the practical implementation of the method and demonstrate our approach on the compliance minimization of a half-cylindrical shell under static load and fixed area constraint.

    How to join online

    The talk is held online via Zoom. You can join with the following link: