Search for dissertations about: "Ductile shearing"

Showing result 1 - 5 of 11 swedish dissertations containing the words Ductile shearing.

2. 1. Computational modelling of machining - Mesh objective ductile damage modelling

   Author : SENAD RAZANICA; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ductile damage; fracture modeling; Mesh dependence; machining process; visco-plastic Johnson- Cook; simulation tool; FEM;

   Abstract : AbstractTo strengthen the competitiveness the manufacturing industry strives for a continuousdevelopment of cost efficient manufacturing processes and improved product quality.These research and development issues are addressed by increasing the implementationof simulation tools based on finite element method (FEM). READ MORE

4. 2. The effect of stress state in ductile failure

   Author : Imad Barsoum; Jonas Faleskog; Viggo Tvergaard; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ductile failure; Rupture mechanisms; Stress triaxiality; Lode parameter; Finite element analysis; Experiments; Localization; Micromechanics; Void growth; Void coalescence; Engineering mechanics; Teknisk mekanik;

   Abstract : The industrial application of high strength steels in structural components has increased the demand on understanding the ductile failure behavior of this type of materials. In practical situations the loading experienced on components made out of these materials can be very complex, which may affect the failure behavior. READ MORE

5. 3. Ductile failure and rupture mechanisms in combined tension and shear

   Author : Imad Barsoum; Jonas Faleskog; Björn Skallerud; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Other engineering mechanics; Övrig teknisk mekanik;

   Abstract : This licentiate thesis is generally concerned with the ductile failure and rupture mechanisms encountered under combined tension and torsion loading. In the first part entitled Paper A, an experimental investigation of the rupture mechanisms in a mid-strength and a high strength steel was conducted employing a novel test configuration. READ MORE

6. 4. Late-orogenic, ductile shear zones and protolith ages in the Svecofennian domain, central Sweden

   Author : Karin Högdahl; Carl Ehlers; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

   Abstract : The timing of deformation along ductile shear zones in the Svecofennian Domain in central Sweden has generally been constrained by their relationship to magmatic and metamorphic events of known age. A better resolution for the timing of the deformation can be obtained by direct, radiometric dating of minerals which are constituents of the shear fabric. READ MORE

7. 5. Assembly of the Caledonian Orogenic Wedge, Jämtland, Sweden

   Author : Hagen Bender; Uwe Ring; Bjarne SG Almqvist; Rob Strachan; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; collisional orogeny; Scandinavian Caledonides; Seve Nappe Complex; Köli Nappe Complex; in-sequence thrusting; out-of-sequence thrusting; imbrication; nappe stacking; orogenic wedge assembly; Rb–Sr geochronology; rock magnetism; anisotropy of magnetic susceptibility; Geology; geologi;

   Abstract : Collisional orogeny creates the largest mountain belts on Earth. The Caledonides of Scandinavia are a deeply eroded, ancient mountain belt, which today exposes a deep section through the former orogenic interior. READ MORE