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Showing result 1 - 5 of 33 essays matching the above criteria.

1. 1. Flexural strength of dental restoratives

   University essay from Umeå universitet/Institutionen för odontologi

   Author : Mikael Blennow; Ahmed Al-Ahmed; [2023]
   Keywords : Flexural strength; porosity;

   Abstract : Background: New dental restorative material, “Cention Forte” and “Admira Fusion” have been available on the market for quite some time but are still new in comparison with traditional resin-based composite, “Ceram.x Spectra ST” and glass ionomer cement, “GC Fuji II LC”. READ MORE

3. 2. EVALUATION OF ENVIRONMENTAL AND TECHNICAL PERFORMANCE OF ALTERNATE FIBRES FOR SHOTCRETE IN TUNNELS

   University essay from KTH/Betongbyggnad

   Author : Shilpa Anand; [2022]
   Keywords : Shotcrete; Life cycle assessment; Environmental Product Declaration; Global warming potential; steel; basalt and synthetic fibres; flexural strength; energy absorption.;

   Abstract : Tunnels in hard and jointed rock are normally excavated in an arch shape to enable the rock mass to support its weight. Since the beginning of the 1980's, fibre reinforced shotcrete (FRS) in combination with rock bolts have been the dominating support method for hard rock tunnels. READ MORE

4. 3. Analysis of Resin Impregnated Non-woven : In collaboration with Hitachi Energy

   University essay from Uppsala universitet/Institutionen för materialvetenskap

   Author : Ahmed Abdulkareem Najm Al-Saedi; Anders Hedenfeldt; Andrea García; Anna-Karin Kron; Cornelia Bergström; Lova Källkvist; [2022]
   Keywords : resin impregnated non-woven; bushings; composite; resin impregnated paper; tensile; bending; permeability; mechanical properties;

   Abstract : High voltage bushings are the most critical components of power transformers. A common material used in bushings is resin impregnated paper (RIP). Hitachi Energy is investigating whether this can be replaced with a new material, resin impregnated non-woven (RIN). READ MORE

5. 4. Shear Failure of Steel Fiber and Bar Reinforced Concrete Beams Without Stirrups : Predictions based on Nonlinear Finite Element Analyses

   University essay from KTH/Betongbyggnad

   Author : David Andersson; [2022]
   Keywords : Nonlinear finite element analysis; Shear failure; Fiber reinforced concrete beams; ATENA;

   Abstract : Shear failure in concrete beams are often brittle in nature and potentially dangerous without adequatereinforcing measures. In design of concrete, it is commonly recommended to install transversalreinforcement along the shear span to induce a more ductile structural response, improving the shearcapacity all together and providing sufficient warning prior to collapse. READ MORE

6. 5. Characterization methodology to assess the mechanical properties of delignified birch/PMMA transparent wood biocomposites

   University essay from KTH/Fiber- och polymerteknologi

   Author : Nicolò Arcieri; [2022]
   Keywords : Transparent wood; mechanical properties; fracture toughness; in situ experiments; cohesive zone model; Transparent trä; mekaniska egenskaper; brottsstyrka; in situ-experiment; modell för kohesionszonen;

   Abstract : Transparent trä biokompositer (TW) är en ny attraktiv klass av biokomposit. De är uppbyggda av delignifierat trä som impregnerats med en polymer med matchande brytningsindexet.  TW kan skräddarsys för inom ett brett spektrum av funktionella, optiska och mekaniska egenskaper. READ MORE