Computational model of adhesive scarf joints in timber beams

• Autorzy: Rapp P.

Identyfikatory

DOI

10.12841/wood.1644-3985.070.01

• Języki publikacji: EN

Abstrakty

EN

The subject of this paper is the general formulation of a model for scarf adhesive joints in timber beams within the framework of plane linear elasticity. It is assumed that wood is orthotropic. The joint can be subjected to a complex loading state including an axial force, a bending moment and a shear force. The joint model is given in displacements by means of a set of four partial differential equations of the second order. Boundary conditions cater for sharp edges in the adherends. Complete solutions to theory of elasticity equations are presented and discussed. The manner in which the joint transmits the axial force, the bending moment and the shear force is presented. It is shown that the scarf joint does not feature stress concentrations and that there exists an approximate equivalence of displacements and stress states in scarf jointed and continuous elements.

Słowa kluczowe

EN

timber beam; adhesive scarf joint; analytical model; two-dimensional displacement-stress analysis; orthotropy; linear elasticity

PL

belka drewniana; model analityczny; analiza dwuwymiarowa; sprężystość liniowa

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Drewno : prace naukowe, doniesienia, komunikaty
• Rocznik: 2014
• Tom: vol. 57, nr 193
• Strony: 5--35
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Rapp P.

• Poznan University of Technology, Poznan, Poland

Bibliografia

• Erdogan F., Ratawani M. [1971]: Stress Distribution in Bonded Joints. Journal of Composite Materials 5 (3): 378–393. DOI: 10.1177/002199837100500308
• Goodman J.R., Bodig J. [1970]: Orthotropic Elastic Properties of Wood. Journal of the Structural Division 96 (11): 2301–2319
• Keylwerth R. [1951]: Die anisotrope Elastzität des Holzes und der Lagerhölzer (Anisotropic elasticity of wood and wooden beams). VDI – Forschungsheft 430, Ausgabe 13, Band 17, Deuther Ingeniur, Dusseldorf
• Neuhaus H. [1994]: Lehrbuch des Ingenieurholzbaus (Textbook on wood structures). Teubner, Stuttgart
• Rapp P. [2010a]: Mechanika połączeń klejowych jako płaskie zadanie teorii sprężystości (Mechanics of adhesive joints as a plane problem of the theory of elasticity). Rozprawy Nr 441, Wydawnictwo Politechniki Poznańskiej, Poznań
• Rapp P. [2010b]: Mechanics of adhesive joints as a plane problem of the theory of elasticity. Part I: general formulation. Archives of Civil and Mechanical Engineering 10 (2): 81–108
• Reddy M.N., Sinha P.K. [1975]: Stresses in Adhesive-Bonded Joints for Composites. Fibre Science and Technology 8 (1): 33–47. DOI: 10.1016/0015-0568(75)90013-5
• Smardzewski J. [1996]: Distribution of stresses in finger joints. Wood Science and Technology 30 (6): 477–489. DOI: 10.1007/BF00244442
• Tomasiuk A. [1988]: Analyse der Spannungen in Klebfugen biegebelasteter Keilzinken-verbindungen (Analysis of stresses in scarf adhesive joints under bending). Holztechnologie – Leipzig 29 (1): 25–26