Search for dissertations about: "High-speed photography"

Showing result 1 - 5 of 21 swedish dissertations containing the words High-speed photography.

2. 1. High strain-rate experiments using high-speed photography

   Author : Jörgen Kajberg; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

   Abstract : In many technical processes, material is deformed under conditions that contain high strain rates. Examples of such processes are collisions, impact, penetration, metal forming and crack propagation. Constitutive models including viscoplasticity have been proposed for these kinds of situations. READ MORE

4. 2. Signal processing and high speed imaging as monitoring tools for pulsed laser welding

   Author : Rickard Olsson; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser welding; digital signal processing; High speed imaging; monitoring; Kalman filtering; Manufacturing Systems Engineering; Produktionsutveckling;

   Abstract : In Laser Materials Processing there has always been a need for suitable methods to supervise and monitor the processes on line, to ensure correct production quality or to trigger alarms when failures are detected. Numerous investigations have been made in this field, including experimental and theoretical work. READ MORE

5. 3. Composites studied by moiré methods and high speed photography

   Author : L. Gunnar Melin; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimental Mechanics; Experimentell mekanik;

   Abstract : Fibre composites are today used as construction material in a growing number of applications. Carbon fibres/epoxy matrix composites are employed in high performance applications as aircrafts where a high stiffness/weight ratio is important. READ MORE

6. 4. Optical Diagnostics of Non-thermal Plasmas and Plasma-assisted Combustion

   Author : Jiajian Zhu; Förbränningsfysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; High-speed photography; Laser diagnostics; Planar laser-induced fluorescence; Plasma-assisted combustion; Non-thermal plasmas; Gliding arc discharge; Optical diagnostics; Particle tracking velocimetry; Fysicumarkivet A:2015:Zhu;

   Abstract : Non-thermal plasma is regarded as a collection of free electrons, ions and neutral particles that are not at local thermodynamic equilibrium. The high-energetic electrons formed in non-thermal plasmas are capable of generating chemically active species and modifying chemical kinetics in practical applications. READ MORE

7. 5. Blast and Impact Loaded Concrete Structures - Numerical and Experimental Methodologies for Reinforced Plain and Fibre Concrete Structures

   Author : Jonas Ekström; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reinforced concrete structures; High Speed Photography; Numerical analysis; Drop weight test; Digital Image Correlation; Dynamic response; Experimental
   methodology;

   Abstract : For decades the focus of civil protection has been on civil defence shelters to withstand the threat of warfare and protecting civilians. In latter years, the general focus has often shifted towards the protection of specific targets that host functions important to society. READ MORE