Sökning: "ESPI"

Hittade 3 uppsatser innehållade ordet ESPI.

  1. 1. THE EU AS A SPACE POWER A path towards integration or interdependence?

    Magister-uppsats, Göteborgs universitet/Statsvetenskapliga institutionen

    Författare :Mahesh Karthik; [2021-07-01]
    Nyckelord :The European Union; European Space Agency; European Space Policy; Cooperation; Security; Sustainability; Economy; Framework Programmes;

    Sammanfattning : This thesis aims to explore the synergies (or the lack thereof) in the actions and programmes of the European Union in conjunction with the European Space Agency in the areas of the space-based economy, space-based sustainability, and space-based security, based on the joint statement signed in 2016 by the two organizations. The joint statement said that the organizations would work in close cooperation with each other for unified and concerted progress within the space sector. LÄS MER

  3. 2. Residual stresses and distortions in austenitic stainless steel 316L specimens manufactured by Selective Laser Melting

    Magister-uppsats, Högskolan Väst/Avdelningen för svetsteknologi (SV)

    Författare :Henrik Nöbauer; [2018]
    Nyckelord :Residual Stresses; Distortions; SLM; Selective Laser Melting; 316L; X-ray diffraction; XRD; ESPI; Hole drilling;

    Sammanfattning : Residual stresses are one of the major challenges in additive manufacturing of metallic materials today. They are induced during manufacturing because of the rapid local heating and cooling and may cause distortions, cracking and delamination between layers. LÄS MER

  4. 3. Investigation of material removal techniques for residual stress profile determination on induction hardened steel

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Natalie Pettersson; [2017]
    Nyckelord :X-ray diffraction; Residual stress measurements; material removal; induction hardening; ESPI;

    Sammanfattning : The residual stress profile is a major factor on the fatigue life of components that are subjected to cyclic loading. In order to measure these stresses x-ray diffraction (XRD) is commonly used. The penetration depth of x-rays is limited for this method and thus, it must be combined with material removal to determine in-depth stress profiles. LÄS MER