We present an isogeometric thin shell formulation for multi-patches based on rational splines over hierarchical T-meshes (RHT-splines). Nitsche's method is employed to efficiently couple the patches. The RHT-splines have the advantages of allowing a computationally feasible local refinement, are free from linear dependence, possess high-order continuity and satisfy the partition of unity and non-negativity. In addition, the C1 continuity of the RHT-splines avoids the rotational degrees of freedom. The good performance of the present method is demonstrated by a number of numerical examples.
|Number of pages
|Computer Methods in Applied Mechanics and Engineering
|Published - 2017 Apr 1
Bibliographical noteFunding Information:
The first author gratefully acknowledges the financial support of the Singapore Maritime Institute (Grant SMI-2014-MA11). Yuri Bazilevs was partially supported by the NASA (Grant NNX15AW13A).
© 2016 Elsevier B.V.
- Isogeometric analysis
- Large deformation
- Multiple patches
- Thin shell
ASJC Scopus subject areas
- Computational Mechanics
- Mechanics of Materials
- Mechanical Engineering
- General Physics and Astronomy
- Computer Science Applications