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Theoretical and applied fracture mechanics v.93, 2018년, pp.202 - 210   SCIE
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Welded joints under multiaxial non-proportional loading

Carpinteri, Andrea (Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy ) ; Boaretto, Joel (Mechanical Post-Graduate Program, Federal University of Rio Grande do Sul, Sarmento Leite 425, CEP 90050-170 Porto Alegre, Brazil ) ; Fortese, Giovanni (Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy ) ; Giordani, Felipe (Mechanical Post-Graduate Program, Federal University of Rio Grande do Sul, Sarmento Leite 425, CEP 90050-170 Porto Alegre, Brazil ) ; Rodrigues, Roberto Isoppo (Mechanical Post-Graduate Program, Federal University of Rio Grande do Sul, Sarmento Leite 425, CEP 90050-170 Porto Alegre, Brazil ) ; Iturrioz, Ignacio (Mechanical Post-Graduate Program, Federal University of Rio Grande do Sul, Sarmento Leite 425, CEP 90050-170 Porto Alegre, Brazil ) ; Ronchei, Camilla (Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy ) ; Scorza, Daniela (Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy ) ; Vantadori, Sabrina (Departme ) ; Zanichelli, Andrea ;
  • 초록  

    Abstract The present paper examines the fatigue behaviour of a fillet-welded tubular T-joint in the so-called H structural component of an agricultural sprayer. Since the experimental measurements, performed in some control locations of the equipment, have highlighted a stress/strain field of random nature, an equivalent deterministic cyclic loading is here defined in order to simplify the fatigue analysis. Such an equivalent loading is able to accumulate damage values equal to the experimental ones in correspondence of the above control locations. The present study shows that it is possible to neglect the actual nature of loading provided that a suitable equivalent deterministic cyclic loading is taken into account. Highlights The fatigue behaviour of a welded T-joint in an agricultural sprayer is examined. Experimental strain measurements and numerical analyses of the T-joint are employed. Two critical plane-based multiaxial fatigue criteria are applied. The agreement between experimental and theoretical results is satisfactory.


  • 주제어

    Agricultural sprayer .   Critical plane-based criteria .   Multiaxial fatigue .   Non-proportional loading .   T-joint.  

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