Computational Analysis of Quality Reduction during Drying of Lumber due to Irrecoverable Deformation. II: Algorithmic Aspects and Practical Application
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VIEW THE ORIGINAL ARTICLEPublication: Journal of Engineering Mechanics
Volume 129, Issue 9
Abstract
This paper describes the development of an efficient numerical integration algorithm for an orthotropic viscoelastic-mechanosorptive-plastic material model for wood, which was presented in Part I of this serial. This development utilizes both a semianalytical algorithm for the viscoelastic parts, and the return-mapping algorithm known from plasticity for the mechanosorptive-plastic part of the model. This yields an easily computed, closed form expression for the consistent tangent operator, and, as a consequence, a quadratic rate of asymptotic convergence on the global level of the incremental-iterative analysis by means of the FEM. To prove the practical applicability of the presented formulation, a numerical study of the so-called case-hardening phenomenon as observed on fast dried pine wood was performed. Selected results are presented and discussed.
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References
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Published In
Journal of Engineering Mechanics
Volume 129 • Issue 9 • September 2003
Pages: 1006 - 1016
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Dec 11, 2001
Accepted: May 5, 2003
Published online: Aug 15, 2003
Published in print: Sep 2003
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