A New Method for Determination of Glue Joint Shear-Strength in Laminated Wood
Keywords:
Glue joints, shear strength, laminated woodAbstract
Cylindrical samples, 3.1 cm in diameter, were used for determination of "strength properties of adhesives in shear by compression loading," Testing was conducted by use of a hand dynamometer (torque wrench). Comparison of the results between cylindrical and standard orthogonal samples (ASTM D905-49) showed that the proposed method can replace the standard method with significant accuracy, and the relationship of values obtained is linear y = 2.19 + 173.19x with coefficient of correlation r = 0.67.References
American Society For Testing and Materials. 1972. Standard methods of testing veneer, plywood, and other glued veneer constructions. ASTM D 805-52. Philadelphia, PA.nFox, S. P., and W. G. Warren. 1973. Shear-plug shapes and testing methods. Can. Dep. Environ., West. For. Prod. Lab., Inform. Per. VP-X-119.nGaudert, P., and M. N. Carroll. 1973. A plug test for plywood lumber composites. For. Prod. J. 23(1):31-36.nGaudert, P., and G. Tsoumis. 1982. A method for testing internal bond of particleboard. Wood and Fiber 14(2):159-161.nPassialis, C. 1983. Cylindrical samples to determine particleboard properties. Annals School For. and Nat. Env. (in press).nPlywood Fabricator Service. Inc. (PFS). 1966. Quality control and trademarking requirements covering the fabrication of plywood components. Amer. Plywood Assoc., Tacoma, WA.nSelbo, M. L. 1962. A new method for testing glue joints of laminated timbers in service. For. Prod. J. 12(2):65-67.n
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