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
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This article is published in International Journal for Numerical Methods in Engineering.The article was published on 1998-10-30. It has received 7 citations till now. The article focuses on the topics: Tangent stiffness matrix & Viscoplasticity.read more
Citations
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Journal ArticleDOI
Thermal and structural analysis of calandria vessel of a phwr during a severe accident
TL;DR: In this paper, a numerical analysis is performed to evaluate the thermal loads and the stresses in the calandria vessel following a severe core damage accident in a PHWR, and the strain rate and the vessel failure have been evaluated for the above scenario.
Journal ArticleDOI
The influence of the crust layer on RPV structural failure under severe accident condition
Jianfeng Mao,Jianfeng Mao,Li Xiangqing,Shiyi Bao,Shiyi Bao,Lijia Luo,Zengliang Gao,Zengliang Gao +7 more
TL;DR: In this paper, a detailed investigation is conducted by using numerical simulation on the two pressure vessel (RPV) with and without crust layer respectively, and the authors assesses the likelihood and potential failure location, time and mode of the lower head (LH) under the loadings of the critical heat flux (CHF) and slight internal pressure.
Book ChapterDOI
Plant life management (PLiM) practices for sodium cooled fast neutron spectrum nuclear reactors (SFRs)
TL;DR: In this article, the authors give an overview of life management issues of fast neutron spectrum (SFRs) and present state-of-the-art PLiM practices for SFRs.
Journal ArticleDOI
Effects of the Unified Viscoplastic Formulation and Temperature Terms on the Thermomechanical Behavior of Soldering Materials
TL;DR: In this paper, the authors compared the most common unified viscoplastic models in the local and finite element levels for the decision upon the most efficient model for a tin-based solder token as the test material.
Proceedings ArticleDOI
Efficiency and robustness of some behavior laws in the description of viscoplastic deformation and degradation of solder materials
TL;DR: In this paper, the authors compare the most common unified viscoplastic models in the local and finite element levels for the decision upon the most efficient model for a tin-based solder token as the test material.
References
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Journal ArticleDOI
A tangent modulus method for rate dependent solids
TL;DR: In this article, a one step forward gradient time integration scheme is developed which leads to a tangent stiffness type method for rate dependent solids, and numerical examples are presented showing application of the method to material behaviors ranging from elastic nonlinearly viscous to nearly rate independent.
Journal ArticleDOI
A Unified Constitutive Model for Cyclic Viscoplasticity and Its Applications to Various Stainless Steels
J. L. Chaboche,D. Nouailhas +1 more
Journal ArticleDOI
An implicit integration algorithm with a projection method for viscoplastic constitutive equations
K. Hornberger,H. Stamm +1 more
TL;DR: In this article, the solution of the non-linear system of algebraic equations arising from time discretization of the constitutive equations is determined using a projection method in combination with Newton's method.
Journal ArticleDOI
Development of a method for integrating time‐dependent constitutive equations with large, small or negative strain rate sensitivity
T. G. Tanaka,A. K. Miller +1 more
TL;DR: In this article, a unified numerical method to integrate stiff time-dependent constitutive equations has been developed, which is a stable, non-iterative and self-correcting solution procedure which works successfully over a wide range in strain rate sensitivity.
Journal ArticleDOI
A new uniformly valid asymptotic integration algorithm for elasto‐plastic creep and unified viscoplastic theories including continuum damage
Abhisak Chulya,Kevin P. Walker +1 more
TL;DR: In this paper, a new scheme to integrate a system of stiff differential equations for both the elasto-plastic creep and the unified viscoplastic theories is presented, which has high stability, allows large time increments, and is implicit and iterative.
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An elasto-viscoplastic constitutive model for polymers at finite strains
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