An approach to viscoelastic behaviour analysis of wood-based panels by an inverse method of characterisation
-
Frédéric Bos
Abstract
The main objective of this paper is to propose an alternative method for viscoelastic characterisation of wood-based panels. Our approach, based on inverse identification methods, allows simultaneous estimation of the whole bending/torsion stiffness matrix of orthotropic plates. Elastic or viscoelastic characterisations are carried out according to the same protocol. The first step consists of optimisation of the experimental set-up, i.e., determination of the best localisation and intensity of the applied stresses and of the best position for boundary conditions. This step is realised for each type of panel using generic algorithms to obtain sensitivities satisfying the test for each stiffness matrix component. An identification procedure is then performed using a finite element program. The measurement of the whole displacement field (500×500 mm2) is made using an optical system. Validation of the elastic identification is carried out by comparison with the mechanical properties obtained from a vibrating test and a simulation tool. Non-conventional analysis of the viscoelastic behaviour of wood-based panels is illustrated for two particular plywood panels.
References
Arafeh, M.H. (1995) Identification de lois de comportement élastique de matériaux orthotropes. Thèse. L'Université de Technologie de Compiègne, France.Suche in Google Scholar
Baillargeon, G. – Méthodes statistiques de l'ingénieur. Volume 1. Editions SMG, 1990.Suche in Google Scholar
Bos, F., Bos-Casagrande, S. (2003) On-line non-destructive evaluation and control of wood based panels by vibration analysis. J. Sound Vib.268:403–412.10.1016/S0022-460X(03)00342-0Suche in Google Scholar
Bos, F., Guitard, D. (1995) Validation expérimentale d'un outil de conception des contreplaqués. Ann. For. Sci.52:423–431.10.1051/forest:19950503Suche in Google Scholar
Cloud, D., Optical Methods of Engineering Analysis. Cambridge University Press, 1995.10.1017/CBO9780511575013Suche in Google Scholar
Dinwoodie, J.M., Higgings, J.S., Paxton, B.H., Robson, D.J. (1990) Creep research on particleboard. 15 years work at the UK Building Research Establishment. Holz Roh Werkstoff29:64–76.10.1007/BF02607843Suche in Google Scholar
Grédiac, M., Auslender, F., Pierron, F. (2000) Identification simuntannée de paramètres pilotant une loi de comportement orthotrope avec prise en compte d'une non linéarité. In: Comptes Rendus des 12èmes JNC, Vol. 1. pp. 365–374.Suche in Google Scholar
Kernevez, J.P., Knoff-Lenoir, C., Touzot, G., Verchery, G. (1978) An identification method applied to an orthotropic plate bending experiment, Int. J. Num. Eng.12:129–139.10.1002/nme.1620120113Suche in Google Scholar
Le Magorou, L. (2002) Identification de lois de comportement élastique et viscoélastique de panneaux structuraux à base de bois. Thèse. L'Université Bordeaux I, Spécialité Mécanique, France.Suche in Google Scholar
Le Magorou, L., Bos, F., Rouger, F. (2002) Identification of constitutive laws for wood-based panels by means of an inverse method. Compos. Sci. Technol.62:591–596.10.1016/S0266-3538(01)00149-XSuche in Google Scholar
Pierron, F., Vautrin, A. (1996) The ten degrees off-axis tensile test: a critical approach. Compos. Sci. Technol.56:483–488.10.1016/0266-3538(96)00004-8Suche in Google Scholar
Rouger, F. (1988) Application des méthodes numériques aux problèmes d'identification de lois de comportement du matériau bois. Thèse. L'Université de Technologie de Compiègne, France.Suche in Google Scholar
Schittowski, K. (1985) A FORTRAN subroutine solving constrained nonlinear programming problem. Ann. Oper. Res.5:485–500.Suche in Google Scholar
Spiegel, M.R. – Probalités et Statistique: course et probl;agemes. New York: McGraw-Hill. S;aaerie Schaum, 1981.Suche in Google Scholar
Verchery, G., Gong, X.J. (1999) Pure tension with off-axis tests for orthotropic laminates. In: Proceedings of the 12th International Conference on Composite Materials. ICCM12, Paris.Suche in Google Scholar
©2005 by Walter de Gruyter Berlin New York
Artikel in diesem Heft
- The prediction of pulp yield using selected fiber properties
- Surface lignin and extractives on hardwood RDH kraft pulp chemically characterized by ToF-SIMS
- NMR studies on Fraser fir Abies fraseri (Pursh) Poir. lignins
- Acid hydrolysis kinetics and identification of erythro and threo α-ethyl ether derivatives of non-phenolic arylglycerol-β-syringyl ether lignin model compounds
- Stabilization of cellulose solutions in N-methylmorpholine-N-oxide (Lyocell dopes) by addition of an N-oxide as sacrificial substrate
- Mechanism of decomposition of peracetic acid by manganese ions and diethylenetriaminepentaacetic acid (DTPA)
- The effect of chlorophorin and its derivative on melanin biosynthesis
- Long-term development of VOC emissions from OSB after hot-pressing
- Assessment of continuous distribution of wood properties from a low number of samples: Application to the variability of modulus of elasticity between trees and within a tree
- Earlywood and latewood elastic properties in loblolly pine
- Combined shear and compression analysis using a modified Iosipescu shear test device. Experimental studies on dry wood
- An approach to viscoelastic behaviour analysis of wood-based panels by an inverse method of characterisation
- The mechanosorptive effect in Pinus radiata D. Don.
- Advances in understanding bioactivity of chitosan and chitosan oligomers against selected wood-inhabiting fungi
- Comparison of quantitative real-time PCR, chitin and ergosterol assays for monitoring colonization of Trametes versicolor in birch wood
- Rate and extent of adsorption of ACQ preservative components in wood
- Prediction of long-term leaching potential of preservative-treated wood by diffusion modeling
Artikel in diesem Heft
- The prediction of pulp yield using selected fiber properties
- Surface lignin and extractives on hardwood RDH kraft pulp chemically characterized by ToF-SIMS
- NMR studies on Fraser fir Abies fraseri (Pursh) Poir. lignins
- Acid hydrolysis kinetics and identification of erythro and threo α-ethyl ether derivatives of non-phenolic arylglycerol-β-syringyl ether lignin model compounds
- Stabilization of cellulose solutions in N-methylmorpholine-N-oxide (Lyocell dopes) by addition of an N-oxide as sacrificial substrate
- Mechanism of decomposition of peracetic acid by manganese ions and diethylenetriaminepentaacetic acid (DTPA)
- The effect of chlorophorin and its derivative on melanin biosynthesis
- Long-term development of VOC emissions from OSB after hot-pressing
- Assessment of continuous distribution of wood properties from a low number of samples: Application to the variability of modulus of elasticity between trees and within a tree
- Earlywood and latewood elastic properties in loblolly pine
- Combined shear and compression analysis using a modified Iosipescu shear test device. Experimental studies on dry wood
- An approach to viscoelastic behaviour analysis of wood-based panels by an inverse method of characterisation
- The mechanosorptive effect in Pinus radiata D. Don.
- Advances in understanding bioactivity of chitosan and chitosan oligomers against selected wood-inhabiting fungi
- Comparison of quantitative real-time PCR, chitin and ergosterol assays for monitoring colonization of Trametes versicolor in birch wood
- Rate and extent of adsorption of ACQ preservative components in wood
- Prediction of long-term leaching potential of preservative-treated wood by diffusion modeling
