Details

Autor(en) / Beteiligte

• Nguyen-Thanh, N.
• Kiendl, J.
• Nguyen-Xuan, H.
• Wüchner, R.
• Bletzinger, K.U.
• Bazilevs, Y.
• Rabczuk, T.

Titel

Rotation free isogeometric thin shell analysis using PHT-splines

Ist Teil von

• Computer methods in applied mechanics and engineering, 2011-11, Vol.200 (47), p.3410-3424

Ort / Verlag

Kidlington: Elsevier B.V

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• ► An isogeometric shell element based on the thin shell theory is proposed. ► The PHT-spline tremendously facilitates local refinement and possess C 1 continuity. ► The thin shell analysis based on Kirchhoff–Love theory avoids the use of rotational degrees of freedom. This paper presents a novel approach for isogeometric analysis of thin shells using polynomial splines over hierarchical T-meshes (PHT-splines). The method exploits the flexibility of T-meshes for local refinement. The main advantage of the PHT-splines in the context of thin shell theory is that it achieves C 1 continuity, so the Kirchhoff–Love theory can be used in pristine form. No rotational degrees of freedom are needed. Numerical results show the excellent performance of the present method.