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Verification, Performance, Validation, and Modifications to the SOVS Continuum Constitutive Model in a Nonlinear Large‐Deformation Finite Element Code
Author(s) -
Argüello José Guadalupe,
Reiterer Markus W.,
Ewsuk Kevin G.
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03008.x
Subject(s) - finite element method , constitutive equation , nonlinear system , computer science , suite , deformation (meteorology) , code (set theory) , shrinkage , structural engineering , mechanical engineering , materials science , engineering , physics , programming language , composite material , history , machine learning , archaeology , set (abstract data type) , quantum mechanics
The continuum theory of sintering embodied in the constitutive description of Skorohod and Olevsky can be combined with results from mesostructure evolution simulations to model shrinkage and deformation of ceramics. An implementation (and variations) of this sintering model based on a finite element (FE) formulation that allows three dimensional (3D) components to be modeled using Sandia National Laboratories' nonlinear large‐deformation FE code, JAS3D, is presented. This tool provides a capability to model sintering of complex 3D components. Recent modifications to the model dictated that the suite of verification and validations problems, developed for the model, be exercised anew on the modified version. The verification, performance, and validation of the model within JAS3D is described and discussed herein. Modifications and improvements to the original implementation of the model are then also summarized and reviewed as the model's evolution is tracked to its current form.