Computational analysis of quality reduction during drying of lumber due to irrecoverable deformation. II: Algorithmic aspects and practical application

Peter Mackenzie-Helnwein, Antti Hanhijärvi

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)1006-1016
JournalJournal of Engineering Mechanics
Volume129
Issue number9
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed

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Lumber
Drying
Wood
Case hardening
Plastic parts
Plasticity
Plastics
Finite element method

Keywords

  • algorithms
  • drying
  • wood drying
  • lumber
  • wood
  • structural engineering computing
  • viscoelasticity
  • plasticity
  • finite element analysis
  • deformation

Cite this

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title = "Computational analysis of quality reduction during drying of lumber due to irrecoverable deformation. II: Algorithmic aspects and practical application",
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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Computational analysis of quality reduction during drying of lumber due to irrecoverable deformation. II : Algorithmic aspects and practical application. / Mackenzie-Helnwein, Peter; Hanhijärvi, Antti.

In: Journal of Engineering Mechanics, Vol. 129, No. 9, 2003, p. 1006-1016.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Computational analysis of quality reduction during drying of lumber due to irrecoverable deformation. II

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AU - Mackenzie-Helnwein, Peter

AU - Hanhijärvi, Antti

PY - 2003

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N2 - 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.

AB - 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.

KW - algorithms

KW - drying

KW - wood drying

KW - lumber

KW - wood

KW - structural engineering computing

KW - viscoelasticity

KW - plasticity

KW - finite element analysis

KW - deformation

U2 - 10.1061/(ASCE)0733-9399(2003)129:9(1006)

DO - 10.1061/(ASCE)0733-9399(2003)129:9(1006)

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