Journal ArticleDOI
Assessment of life of inner vessel for a pool-type fast breeder reactor based on inelastic and viscoplastic deformations
Reads0
Chats0
TLDR
In this article, a 3D elastic and axisymmetric inelastic analysis with classical kinematic hardening model, ORNL material model and more realistic CHABOCHE viscoplastic model have been performed.Abstract:
Towards assessing the creep-fatigue damage for the inner vessel of a pool-type fast reactor, 3-D elastic and axisymmetric inelastic analysis with classical kinematic hardening model, ORNL material model and more realistic CHABOCHE viscoplastic model have been performed. The material properties of stainless steel type 316 LN at various temperatures are used in the analysis. Using the results of this analysis, the creep-fatigue damage and ratcheting are assessed as per the rules of RCC-MR and results have been compared for the various constitutive models used. Inelastic analysis has been performed only at highly stressed local regions. Computations with the ORNL material model is found to be satisfactory in terms of conservatism and computer cost involved, and hence recommended for use in the design stage. Further, conservatism in estimating the creep fatigue-damage of the component associated with the elastic route of RCC-MR has been quantified. The inelastic and viscoplastic analysis tool has been validated using experimental benchmark problems.read more
Citations
More filters
Journal ArticleDOI
Development of non-iterative self correcting solution (nonss) method for the viscoplastic analysis with the chaboche model
P. Chellapandi,R. S. Alwar +1 more
Journal ArticleDOI
A thermodynamically consistent model for hydraulic transients in metallic pipes undergoing elasto-viscoplastic deformations
TL;DR: In this article , an extension of the fluid transient analysis to include the elasto-viscoplastic behavior of the pipe material is presented, where the pipe dissipates meaningful amounts of energy that cause a significant alteration in the whole fluid-pipe dynamics.
Journal ArticleDOI
Operating temperatures for an FBR
S.B. Bhoje,P. Chellapandi +1 more
TL;DR: In this paper, structural mechanics aspects related to operating temperatures of a typical pool type 500 MWe fast breeder reactor are discussed, and critical high temperature components are analyzed in detail based on elastic, inelastic and viscoplastic deformation theories.
Related Papers (5)
Development of inelastic constitutive model for austenitic stainless steel for design use
Application of a two-surface plasticity model for thermal ratcheting and failure life estimation in structural model tests
Creep-Fatigue Lifetime Assessment with Phenomenological and Constitutive Material Laws☆
Stefan Linn,Alfred Scholz +1 more