Search for dissertations about: "3D-shell"

Found 3 swedish dissertations containing the word 3D-shell.

2. 1. Modelling of Delamination Growth in Composite Structures

   Author : Niklas E. Jansson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; large deformation; interface; composite materials; 3D-shell; cohesive zone; regularization; shell element; delamination;

   Abstract : Delaminations constitute an important damage and failure mode in polymeric composite laminates. In order to explicitly incorporate and model the delamination progression within a finite element analysis, the meso-modelling concept is applied in the present work. The laminate is thereby represented by separate layers connected with interfaces. READ MORE

4. 2. The effect of core-valence correlation on transition metal clusters and surfaces : a theoretical study

   Author : Hans Åkeby; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Ten studies, using the methods of quantum chemistry to study transition metal clusters and surfaces, are presented. The effect of including correlation between the core and valence-electrons are studied, both with an approximative operator and with the core-electrons explicitly correlated. READ MORE

5. 3. Guided Wave Propagation in Composite Structures; Application to ice detection on wind turbine blades

   Author : Siavash Shoja; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; composite; wind turbine; Guided waves; low temperature; ice detection;

   Abstract : Guided waves are an efficient non-destructive tool in inspection and fault detection of elongated structures. Due to the special characteristics of composite materials, study of guided wave propagation in them has been an interest. READ MORE