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Found 2 essays matching the above criteria.

1. 1. Implementation and validation of an isogeometric hierarchic shell formulation

   University essay from KTH/Bro- och stålbyggnad

   Author : Michael Loibl; [2019]
   Keywords : Isogeometric Analysis; Shell; Locking; Kirchho-Love; Reissner-Mindlin; Three-Dimensional Shell I;

   Abstract : Within this thesis, thin walled shell structures are discussed with modern element formulationsin the context of the Isogeometric Analysis (IGA). IGA was designed to achieve a directinterface from CAD to analysis. According to the concept of IGA, Non-Uniform RationalB-Splines (NURBS) are used as shape functions in the design and the analysis. READ MORE

3. 2. Modelling of failure mechanisms for corrugated board.

   University essay from KTH/Hållfasthetslära (Inst.)

   Author : Mohamed Haidar; [2015]
   Keywords : paper; corrugated paperboard; FEM; experiments; testing; transverse shear; buckling; energy relations; Reissner-Mindlin;

   Abstract : The present work describes the construction of a semi-analytical model for prediction of buckling loads in simply supported corrugated paperboard panels. The model accounts for transverse shear, due to the weakness of the core in such plates compared to the facings. This was done utilizing energy relations and rst order transverse shear. READ MORE