International journal of steel structures (국제강구조저널)

Korean Society of Steel Construction (한국강구조학회)
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Experimental Study of SS304L Cylindrical Shell With/Without Cutout Under Cyclic Combined and Uniaxial Loading

  • Kolasangiani, Kamal (Department of Mechanical Engineering, Ferdowsi University of Mashhad) ;
  • Shariati, Mahmoud (Department of Mechanical Engineering, Ferdowsi University of Mashhad)
  • Received : 2015.08.26
  • Accepted : 2016.10.26
  • Published : 2017.06.30
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Abstract

In this research, ratcheting behavior of SS304L cylindrical shells under cyclic combined and uniaxial loadings was studied. Experimental tests were carried outby a servo-hydraulic INSTRON 8802 machine and the shells were fixed normal and oblique at angle of $20^{\circ}$ with respect to the longitudinal direction of the shell. Force-control loadings were applied and the effect of length, angle of cylindrical shell and loading history on ratcheting behavior were examined.It was shown as the angle of cylindrical shell increases, due to increase of bending moment, accumulation of plastic deformation increases.Also, linear relation was observed between plastic energy and rate of plastic deformation which shows the rigidity of fixtures used in tests. Cutout effect on cylindrical shells under these kinds of loading has been studied and it was observed that creating cutout increases the plastic deformation and its rate.

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