Essays about: "materialparametrar"

Showing result 1 - 5 of 11 essays containing the word materialparametrar.

1. 1. Comparison of Fatigue Life Evaluation Methods

   University essay from KTH/Hållfasthetslära

   Author : Louise Hedberg Lundblad; Anna Lund; [2021]
   Keywords : Solid Mechanics; Fatigue; Time history methods; Spectral methods; Truck components; Road induced vibrations; Hållfasthetslära; Utmattning; Tidshistoriksmetoder; Spektrala metoder; Lastbilskomponenter; väginducerade vibrationer;

   Abstract : The aim of this thesis is to investigate a selected set of fatigue life calculation methods and evaluate if they are suitable for fatigue life estimation of truck components at Scania. Failure due to fatigue can be cause by road induced vibrations, which is an inevitable phenomenon trucks are exposed to. READ MORE

3. 2. Relation Between the Material in Press Hardening Dies and Fully Martensitic Transformation : Sheet properties of thick 3D-sheets in small series production

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Jesper Christensson; [2020]
   Keywords : hot stamping; press hardening; material properties;

   Abstract : This report evaluates the influence of the die material on the cooling rate and martensitic transformation of press hardened sheets. The goal was to increase the thicknesses of sheets that can form fully martensitic microstructure when press hardened. READ MORE

4. 3. Climate enhanced concrete in the civil engineering industry

   University essay from KTH/Betongbyggnad

   Author : Daniel Hofgård; John Sundkvist; [2020]
   Keywords : Alternative binders; carbon dioxide emissions; concrete for bridges; hydropower structures; wind powerplant foundations; GGBS; fly ash; material parameters; silica fume; trass; volcanic ash.; Alternativa bindemedel; vindkraftsfundament; brobetong; GGBS; flygaska; koldioxidutsläpp; mald granulerad masugnsslagg; materialparametrar; silikastoft; trass; vattenbyggnadsbetong; vulkanaska;

   Abstract : In 2017, the Swedish Parliament stated a new climate law with the goal that Sweden should be climate neutral by 2045. The concrete industry has developed a roadmap on how the goal for 2045 can be achieved, where one way to reduce the carbon emissions from concrete is by replacing a part of the cement clinker with alternative binders in the concrete mix. READ MORE

5. 4. Cracking in a slender concrete slab due to thermal variation

   University essay from KTH/Betongbyggnad

   Author : Johan Mattsson; Fredrik Åman; [2019]
   Keywords : Concrete slab; Concrete; Finite element analysis; Cracking; Thermal variation; Seasonal temperature; Abaqus; Brigade Plus; Betonggrund; Betong; Finit element analys; Sprickbildning; Termiska laster; Omgivningstemperature; Abaqus; Brigade Plus;

   Abstract : Concrete slabs used in thepulp and paper industries are often situated outdoors, which means that theslabs are exposed to temperature variations due to different weatherconditions. These temperature variations together with operational temperaturesassociated with the manufacturing process, may introduce high temperaturegradients in the concrete. READ MORE

6. 5. Static and dynamic characterization of elastomers by a modified hardness test

   University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Author : Omar Chouman; [2019]
   Keywords : Rubber; elastomer; modified hardness test; dynamic and static characterization; damping; dynamic shear modulus; hyperelastic material; hyperelastic constants; finite element method; FEM; FEA; Abaqus; Volvo Cars; Technology and Engineering;

   Abstract : Today rubber can be found in many different applications, such as vibration dampers, tyres, clothes and gaskets. Two different types of rubbers are used today, namely the natural rubber and synthetic rubber. Natural rubber is made of a milky substance called latex, which is obtained from special trees found in tropical countries. READ MORE