Search for dissertations about: "cyclic loading"

Showing result 1 - 5 of 124 swedish dissertations containing the words cyclic loading.

2. 1. Modelling of Concrete Subjected to Cyclic Loading

   Author : Rasmus Rempling; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cyclic loading; plasticity; damage; concrete; energy dissipation;

   Abstract : The infrastructure of today depends heavily on concrete structures. Most of these structuresare subjected to repeated loads, known as fatigue or cyclic loads: the loads weakenthe structure. As this phenomenon is of high cost to society, a deeper understanding ofthe deterioration process of cyclic loading would be beneficial. READ MORE

4. 2. Excess pore water pressure generation in fine granular materials under cyclic loading -A laboratory study

   Author : Tan Manh Do; Jan Laue; M. Kubilay Kelesoglu; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Excess pore water pressure; migration of particles; fine granular materials; cyclic loading; Soil Mechanics; Geoteknik;

   Abstract : Abstract Excess pore water pressure can be generated in subgrades of both railway and pavement sub-structures under cyclic loading caused by heavy traffic. When saturated subgrades are subjected to cyclic loading, excess pore water pressures accumulate over time which then could lead to migration of particles into overlying layers. READ MORE

5. 3. From Macromolecular Design to Supramolecular Self-assembly

   Author : Lidija Glavas; Ann-Christine Albertsson; Karin Odelius; Matthew Becker; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Self-assembly; micelles; core crystallinity; cyclic polypeptides; electroactivity; redox-responsiveness; triggered dissociation; loading; release; N-carboxyanhydride polymerization; polyesters; poly ε-decalactone ; Självorganisation; miceller; kärnkristallinitet; cykliska polypeptider; elektroaktivitet; tidsberoende dissociation; inkapsling; frisläppning; N-karboxyanhydrid polymerisation; polyestrar; poly ε-dekalakton ; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : Advancements in drug delivery have enabled a wider array of prevention, control and treatment of diseases such as cancer. Drug delivery systems have the possibility of encapsulating drugs with low solubility, delivering them to specific locations in the body as well as obtaining a controlled and sustained drug release. READ MORE

6. 4. Concrete Structures Subjected to Blast Loading

   Author : Jonas Ekström; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dynamic response; numerical modelling; spalling; blast load; stain-softening; wave propagation; concrete; transverse reverse loading; cyclic crack propagation;

   Abstract : The interest for building safety with regards to highly dynamic events such as close by explosion has accelerated after the recent decades of terrorist attacks. The interest has expanded from civil defence shelters and pure military targets to also include civil buildings used for different civil functions. READ MORE

7. 5. On cyclic accumulation models for degradation of railway foundations

   Author : Hossein Tahershamsi; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Natural soft clay; Global Sensitivity Analysis; Sobol method; Experimental design; Rate-dependent models; Cyclic accumulation models; Cyclic degradation; Uncertainty analysis;

   Abstract : The degradation of railway foundations due to the repeated loading of traffic induces maintenance and safety obligations for the track operator. One major contributor to track degradation is the accelerated settlement rates in soft soils below the track that lead to alignment issues, especially at stiffness transitions. READ MORE