Essays about: "Weld stresses"

Showing result 16 - 20 of 23 essays containing the words Weld stresses.

  1. 16. Numerical simulation of residual stresses in a weld seam : An application of the Finite Element Method

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Maciej Maczugowski; [2017]
    Keywords : Finite element method; residual stresses; temperature distribution; fatigue life; weld power; time step; T-joint weld model; Butt weld model.;

    Abstract : Articulated haulers are fundamental equipment to transport material. The load carrying structure on a hauler consists mainly of welded frames. During welding of the frames high residual stress will be introduced. These stresses may have a significant impact on the fatigue life of the frames. READ MORE

  3. 17. Simulation of laser welding in sandwich rocket nozzle

    University essay from Karlstads universitet/Avdelningen för maskin- och materialteknik

    Author : Filip Elfving; [2015]
    Keywords : FEM; Sandwich; T-joint; residual deformations; residual stresses; Laser;

    Abstract : This bachelor thesis has been carried out at GKN Aerospace. GKN is a member of European Space Agency, designing and manufacturing rocket-nozzles for the Ariane rockets. The manufacturing process entails many welds. Weld-simulations have been made to investigate stresses and plastic strains on simplified geometries. READ MORE

  4. 18. Comparison of a new, high precision, energy efficient welding method with the conventional Gas Metal Arc Welding on high carbon steel base metal

    University essay from Högskolan Väst/Avd för tillverkningsprocesser

    Author : Aimal Mazidi; [2014]
    Keywords : Gas Metal Arc Welding;

    Abstract : CMT+P welding is less susceptible to hot cracking than the MAG welding process due to use of low heat input properties. Solidification cracking was found in all weld specimens that had greater 0.39KJ/mm heat inputs. Cracking occurs because of the contraction stresses generates during cooling. READ MORE

  5. 19. Weld optimization with new Low Temperature Transformation fillermaterials

    University essay from KTH/Industriell produktion

    Author : Gustav Schmidt; [2013]
    Keywords : ;

    Abstract : In this study, evaluation of typical weld geometry, residual stresses and fatigue properties of two new LTT consumables have been performed. The literature survey discusses the topics of LTT consumables regarding fatigue life, chemical composition, dilution, crack phenomena and fatigue crack repair, impact toughness, weld residuals stress and weldgeometry. READ MORE

  6. 20. Effect of material grade on fatigue strength and residual stresses in high strength steel welds

    University essay from KTH/Lättkonstruktioner

    Author : Wasim Asgher; [2012]
    Keywords : Fatigue Strength; Fillet Welded Joints; Effective Notch Method; Residual Stress Simulation.;

    Abstract : This thesis work is concerned with effect of material grade on fatigue strength of welded joints. Fatigue strength evaluation of welded joints in as welded and post weld treated condition was carried out with effective notch method. Results of peak stress method have also been compared with those of effective notch method for as welded joints. READ MORE