• 40CrMoV13.9 notched specimens under multiaxial fatigue: An overview of recent results 

      Razavi, Seyed Mohammed Javad; Peron, Mirco; Torgersen, Jan; Berto, Filippo; Welo, Torgeir (Journal article; Peer reviewed, 2017)
      The multiaxial fatigue strength of circumferentially V-notched and semicircular notched specimens made of 40CrMoV13.9 has been investigated in this paper. The multiaxial load were applied using combined tension and torsion ...
    • Creep behavior of v-notched components 

      Gallo, P; Razavi, Seyed Mohammed Javad; Peron, Mirco; Torgersen, Jan; Berto, Filippo (Journal article; Peer reviewed, 2017)
      Geometrical discontinues such as notches play a significant rule in structural integrity of the components, especially when the component is subjected to very severe conditions, such as the high temperature fatigue or ...
    • Effect of hot dip galvanization on the fatigue strength of steel bolted connections 

      Razavi, Seyed Mohammed Javad; Peron, Mirco; Torgersen, Jan; Berto, Filippo; Mutignani, F (Journal article; Peer reviewed, 2017)
      Hot dip galvanized steel bolted joints has been tested under fatigue loading to evaluate the effect of galvanizing coating on the fatigue strength of S355 structural steel. The experimental results showed that the decrease ...
    • Failure assessment of steel/CFRP double strap joints 

      Majidi, Hamid Reza; Razavi, Seyed Mohammed Javad; Berto, Filippo (Journal article; Peer reviewed, 2017)
      In the current study, the failure behavior of retrofitted steel structures was studied experimentally and theoretically with steel/carbon fiber reinforced polymer (CFRP) double strap joints (DSJs) under quasi-static tensile ...
    • Fatigue assessment of steel rollers by means of the local energy 

      Chebat, F; Cincera, M; Razavi, Seyed Mohammed Javad; Berto, Filippo; Welo, Torgeir (Journal article; Peer reviewed, 2017)
      This paper aims to analyses the fatigue behavior of steel rollers using the average strain energy density (SED) criterion. Considering the variability of the V-notch opening angle, a simple scalar quantity, i.e. the value ...
    • Fatigue Assessment of Ti–6Al–4V Circular Notched Specimens Produced by Selective Laser Melting 

      Razavi, Seyed Mohammed Javad; Ferro, Paolo; Berto, Filippo (Journal article; Peer reviewed, 2017)
      Additive manufacturing (AM) offers the potential to economically produce customized components with complex geometries in a shorter design-to-manufacture cycle. However, the basic understanding of the fatigue behavior of ...
    • Fracture assessment of magnetostrictive materials 

      Peron, Mirco; Razavi, Seyed Mohammed Javad; Berto, Filippo; Torgersen, Jan; Colussi, M (Journal article; Peer reviewed, 2017)
      Giant magnetostrictive materials are gaining interest in the field of smart material, especially the commercially known Terfenol-D, that is an alloy made out of iron, terbium and dysprosium (Tb0.3Dy0.7Fe1.9). Since these ...
    • Local strain energy density for the fatigue assessment of hot dip galvanized welded joints: Some recent outcomes 

      Peron, Mirco; Razavi, Seyed Mohammed Javad; Berto, Filippo; Torgersen, Jan; Mutignani, F (Journal article; Peer reviewed, 2017)
      Since in literature only data about the effect of the hot-dip galvanizing coating on fatigue behavior of unnotched specimens are available, whereas very few for notched components and none for welded joints, the aim of ...
    • Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape 

      Peron, Mirco; Razavi, Seyed Mohammed Javad; Berto, Filippo; Torgersen, Jan; Marsavina, L (Journal article; Peer reviewed, 2017)
      Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a ...
    • Mode II brittle fracture: Recent developments 

      Campagnolo, A; Razavi, Seyed Mohammed Javad; Peron, Mirco; Torgersen, Jan; Berto, Filippo (Journal article; Peer reviewed, 2017)
      Fracture behaviour of V-notched specimens is assessed using two energy based criteria namely the averaged strain energy density (SED) and Finite Fracture Mechanics (FFM). Two different formulations of FFM criterion are ...
    • Notch stress intensity factors under mixed mode loadings: An overview of recent advanced methods for rapid calculation 

      Peron, Mirco; Razavi, Seyed Mohammed Javad; Berto, Filippo; Torgersen, Jan (Journal article; Peer reviewed, 2017)
      Recently some methods for the rapid calculation of notch stress intensity factors (NSIFs) have been developed and three of them are compared in this work. First, the criteria proposed by Lazzarin et al. and Treifi et al. ...
    • Notched graphite under multiaxial loading 

      Razavi, Seyed Mohammed Javad; Peron, Mirco; Torgersen, Jan; Berto, Filippo (Journal article; Peer reviewed, 2017)
      Cylindrical specimens made of polycrystalline graphite and weakened by circumferential V-notches under mixed mode I/III loading were studied in this research. Different geometries of V-notches varying the notch opening ...
    • The Effect of Heat-Treatment on Notched Ti-6Al-4V Specimens Produced by Selective Laser Melting Under Fatigue Loading 

      Flo, Oscar Benjamin (Master thesis, 2018)
      Selective Laser Melting (SLM) is an Additive Manufacturing (AM) technique that can produce metallic parts of arbitrary geometry with densities greater than 99.7%. However, complex shapes lead to notches with different radii ...
    • The fatigue behavior of V-notches in presence of residual stresses: Recent developments and future outcomes 

      Ferro, P; Peron, Mirco; Razavi, Seyed Mohammed Javad; Berto, Filippo; Torgersen, Jan (Journal article; Peer reviewed, 2017)
      Residual stresses, arising from welding processes or nonhomogeneous plastic deformations, broadly influence the high cycle fatigue behavior of mechanical components. The presence of V-notches leads to singular residual ...
    • Thickness Effect on Fatigue Behaviour of Ti-6Al-4V Specimens Produced by Electron Beam Melting 

      Vassbotn, Mimmi (Master thesis, 2019)
      Elektronstråle smelting (EBM) er en type additiv tilvirkning (AM) som brukes til å produsere metalliske komponenter med komplekse geometrier. AM komponenter er avhengig av fabrikasjonsprosessen og derfor også avhengig av ...