The influence of integration schemes in isogeometric Reissner–Mindlin shell analysis

Dornisch, W. (Corresponding author); Müller, R.; Klinkel, Sven

Aachen : Publikationsserver der RWTH Aachen University (2015)
Contribution to a conference proceedings

In: Conference Proceedings of the YIC GACM 2015 / ed.: Stefanie Elgeti ; Jaan-Willem Simon
Page(s)/Article-Nr.: 4 S.

Abstract

The idea of isogeometric analysis is to use the more sophisticated basis functions of design systems alsofor the analysis. This requires a thoughtful update of element formulations. A precise and effective Reissner–Mindlinshell formulation is presented in this contribution. Special focus is put on the numerical integration of the stiffnessmatrix. The usage of non-uniform integration can have positive or negative effects on the accuracy of computations.A numerical example assesses the interaction between rotational concepts and integration.

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