DOI QR코드

DOI QR Code

Description of reversed yielding in thin hollow discs subject to external pressure

  • Alexandrov, Sergei E. (Laboratory for Strength and Fracture of Materials and Structures, Institute for Problems in Mechanics) ;
  • Pirumov, Alexander R. (Technical Mechanics Department, Moscow Technological University) ;
  • Jeng, Yeau-Ren (Department of Mechanical Engineering and Advanced Institute of Manufacturing with High-tech Innovations, National Chung Cheng University)
  • 투고 : 2015.10.13
  • 심사 : 2016.02.13
  • 발행 : 2016.05.25

초록

This paper presents an elastic/plastic model that neglects strain hardening during loading, but accounts for the Bauschinger effect. These mathematical features of the model represent reasonably well the actual behavior of several materials such as high strength steels. Previous attempts to describe the behavior of this kind of materials have been restricted to a class of boundary value problems in which the state of stress in the plastic region is completely controlled by the yield stress in tension or torsion. In particular, the yield stress is supposed to be constant during loading and the forward plastic strain reduces the yield stress to be used to describe reversed yielding. The new model generalizes this approach on plane stress problems assuming that the material obeys the von Mises yield criterion during loading. Then, the model is adopted to describe reversed yielding in thin hollow discs subject to external pressure.

키워드

과제정보

연구 과제 주관 기관 : RFBR, NSC

참고문헌

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피인용 문헌

  1. Influence of the Bauschinger Effect on the Distribution of Residual Stresses in a Thin Hollow Hyperbolic Disc under External Pressure vol.972, pp.None, 2019, https://doi.org/10.4028/www.scientific.net/msf.972.105
  2. Residual stress in an elastoplastic annular disc interacting with an elastic inclusion vol.8, pp.3, 2016, https://doi.org/10.12989/csm.2019.8.3.273
  3. Description of Residual Stresses in Autofrettaged Open-Ended Cylinders Made of High-Strength Steel vol.13, pp.13, 2016, https://doi.org/10.3390/ma13132940
  4. Yield strength estimation of X65 and X70 steel pipe with relatively low t/D ratio vol.38, pp.2, 2016, https://doi.org/10.12989/scs.2021.38.2.151