Journal ArticleDOI
The concentration of stress in cladding produced by the expansion of cracked fuel pellets
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TLDR
In this paper, the effect of increasing cladding thickness on the acceleration of a cracked fuel pellet was examined using a Fourier series technique, and the implications of the results for the mechanism of stress corrosion cracking in Light Water Reactors were discussed.About:
This article is published in Nuclear Engineering and Design.The article was published on 1978-05-02. It has received 19 citations till now. The article focuses on the topics: Cladding (fiber optics) & Stress corrosion cracking.read more
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Finite element simulation of Pellet-Cladding Interaction (PCI) in nuclear fuel rods
N. Marchal,C. Campos,C. Garnier +2 more
TL;DR: In this paper, the use of finite element method to simulate locally the phenomenon of Pellet-Cladding Interaction (PCI) in nuclear fuel rods is discussed. But the authors focus on the effect of fuel fracture properties on clad loading.
Journal ArticleDOI
Simulation of Pellet-Cladding Interaction with the PLEIADES Fuel Performance Software Environment
TL;DR: The PLEIADES fuel performance software environment and its application to the modeling of pellet-cladding interaction (PCI) is discussed in this paper, where the authors focus on the PEADES platform.
Journal ArticleDOI
A new phenomenological criterion for pellet–cladding interaction rupture
TL;DR: In this article, a phenomenological criterion based on the membrane circumferential stress in the cladding and shear stresses at pellet-cladding interface is proposed to assess the failure risk under PCI.
Journal ArticleDOI
Discrete element method for simulation of early-life thermal fracturing behavior in ceramic nuclear fuel pellets
TL;DR: In this article, a discrete element method (DEM) representation of coupled solid mechanics, fracturing and heat conduction processes is developed and applied to explicitly simulate the random initiation and subsequent propagation of interacting thermal cracks in a ceramic nuclear fuel pellet during initial rise to power and during power cycles.
Journal ArticleDOI
Power ramped cladding stresses and strains in 3D simulations with burnup-dependent pellet–clad friction
J. Sercombe,I. Aubrun,C. Nonon +2 more
TL;DR: In this article, the authors present 2D(r, θ) plane strain and 3D simulations of PCI during base irradiation and ramp tests and show that the sole evolution of the friction coefficient with burnup is sufficient to capture the radial crack pattern of rodlets after power ramping.
References
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Theory of elasticity
TL;DR: The theory of the slipline field is used in this article to solve the problem of stable and non-stressed problems in plane strains in a plane-strain scenario.
Journal ArticleDOI
Theoretical analysis of the strains produced in nuclear fuel cladding tubes by the expansion of cracked cylindrical fuel pellets
TL;DR: In this article, the authors calculated the stress, force and strain distributions produced in collapsed cladding by the expansion of cracked pellets during a power increase and showed that the tendency for the cladding to stretch preferentially over them is reduced by frictional sliding at the pellet/clad interface.