Biaxial ratcheting and cyclic plasticity for Bree-type loading. Part 2: Comparison between finite element analysis and theory
- Nanyang Technological Univ., Singapore (Singapore). School of Mechanical and Production Engineering
In Part 1 of this two part (Ng and Nadarajah, 1996), the results of an extensive program of finite element analyses were described. The problem being considered is the phenomenon of ratcheting and cyclic stress-strain hysteresis loop behavior in a thin-walled cylinder subject to cyclic thermal stress and sustained internal pressure. The purpose of Part 2 is to compare the finite element results with two analytical solutions and review the applicability of the latter as a design procedure for assessment of these types of structures. The comparison shows that the ratcheting to shake-down boundaries based on F.E. and analytical models are in close agreement. The hoop ratcheting rates predicted by the uniaxial model enveloped the F.E. and biaxial models, while for the axial ratcheting rates, the F.E. results are upper bound.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 231027
- Journal Information:
- Journal of Pressure Vessel Technology, Vol. 118, Issue 2; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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