Sökning: "maximum surface stress"
Visar resultat 11 - 15 av 28 uppsatser innehållade orden maximum surface stress.
11. Optimization of case-hardening depth for small gears
Master-uppsats, KTH/Hållfasthetslära (Avd.)Sammanfattning : The optimization of case hardening depth for small gears was investigated with the use of Abaqus and the subroutine DANTE to simulate the formation of the microstructural phases, resulting in residual stresses and increased hardness. This was done with a step wise increment of the carburizing time, resulting in a theoretical maximum for compressive residual stresses at the surface. LÄS MER
12. Simulation of Hardening of the MahanaKhon Tower Mat Foundation
Master-uppsats, KTH/BetongbyggnadSammanfattning : Cement hydration is the result of a series of simultaneous chemical reactions occurring during the production of concrete. An excessive amount of heat is generated, which consequently may give rise to thermal stresses and cause early age cracks in concrete that may affect its structural integrity, and load bearing capacity. LÄS MER
13. Analysis of Barreling and Tolerance Effects of Blade Attachments
Master-uppsats, KTH/Hållfasthetslära (Avd.)Sammanfattning : In a gas turbine rotor, the Blade-Disc attachment is often a critical part. This part needs to endure both high contact stress and high temperature. Thus, the prediction of the life of the attachment becomes important. Furthermore, the refinement of the Blade-Disc attachment is worth to study, to extend the lifetime of the turbine rotor. LÄS MER
14. Improved lifetime of a rubber spring in an articulated hauler through product development
Magister-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)Sammanfattning : Dampening systems are important in heavy vehicles utilized in rough terrains, with purpose to reduce shocks and vibrations with negative influences on the vehicle and, more importantly, on the operator of the vehicle. During the years the heavy vehicles require sturdier construction parts, due to demands on higher load capacity, where the easy solution to scale up the construction parts is not always applicable for dampening systems with nonlinear behavior. LÄS MER
15. Stability analysis of a large span timber dome
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Avdelningen för KonstruktionsteknikSammanfattning : The aim of this thesis is to study the feasibility of building a timber dome with a span of 300 metres, concerning elastic stability. The load-bearing members were modelled with the properties of glued laminated timber GL30c with the dimensions 0.8×1.6 m2. LÄS MER
