Application of finite element analysis to panel warping
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Abstract
A three-dimensional finite element program was developed to study the warping of an orthotropic plate. Special features of this program include the capability of modeling moisture-gradient-induced deformation of homogeneous as well as layered sheet materials such as plywood and fiberboard or particleboard. This specially developed finite element analysis is applied here to predict the warping due to an assumed moisture content gradient of a solid wood panel (Douglas fir). How well this analysis simulates the actual behavior of the material can only be determined on the basis of further experimental examination, which, however, was not the subject of this study.
Keywords
Initial Moisture Content Solid Wood Orthotropic Plate Forest Product Laboratory Moisture Content LevelAnwendung der Finite-Elemente-Analyse auf die Verformung von Platten
Zusammenfassung
Ein dreidimensionales Finite-Elemente-Programm wurde entwikkelt, um die Verformung rechteckiger Platten zu untersuchen. Spezielle Programmteile simulieren die durch Feuchtegradienten verursachten Deformationen sowohl homogener als auch aus Schichten aufgebauter Platten wie Sperrholz, Faser-oder Spanplatten. Dieses spezielle Analysenprogramm wird hier angewendet, um die Verformung von Vollholzplatten (Douglasien) aufgrund vorgegebener Holzfeuchtegradienten zu berechnen. Wie gut diese Berechnungen das tatsächliche Verhalten von Holzplatten simuliert, kann nur nach weiteren experimentellen Prüfungen beurteil werden, was jedoch nicht im Rahmen dieser Untersuchungen lag.
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References
- Bathe, K. J.; Wilson, E. L.: Numerical Methods in Finite Element Analysis, Prentice-Hall, Inc, Englewood Cliffs, New Jersey 1976Google Scholar
- Forest Products Laboratory: Wood Handbook, Agric. Handbook No. 72. USDA Forest Serv., Washington, D.C., 466p 1987Google Scholar
- Kikuchi, N.: Finite Element Methods in Mechanics, Press Syndicate of the University of Cambridge, the Pitt Building, Trumpington Street, Cambridge CB21RP, 32 East 57th Street, New York 1986Google Scholar
- Suchsland, O.: How to Analyze the Warping of a Furniture Panel, Wood Science Series, No. 3, Department of Forestry, Michigan State University, East Lansing, MI, 27p 1990Google Scholar
- Suchsland, O.; J. D. MeNatt: On the Warping of Laminated Wood Panels. Report on Cooporative Study between the U.S. Forest Service, Forest Products Laboratory; the Forestry Department, Michigan State University; and the Michigan State University Agricultural Experiment Station. Michigan State University, East Lansing, MI, 120p 1985Google Scholar