Lecture 19: Beam, Plate, and Shell Elements I

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Topics: Beam, plate, and shell elements I Brief review of major formulation approaches The degeneration of a three-dimensional continuum to beam and shell behavior Basic kinematic and static assumptions used Formulation of isoparametric (degenerate) general shell elements of variable thickness for large displacements and rotations Geometry and displacement interpolations The nodal director vectors Use of five or six nodal point degrees of freedom, theoretical considerations and practical use The stress-strain law in shell analysis, transformations used at shell element integration points Shell transition elements, modeling of transition zones between solids and shells, shell intersections Instructor: Klaus-Jürgen Bathe