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PDF : 12020075.pdf
title(En) :Studies on the Mechanical Properties of Plywood. IV. Young's Modulus in Tension and Tensile Strength
author(En) :Motoaki Okuma
information :Mokuzai Gakkaishi 12(2), 75-80 (1966)
assort :Original Article
summary(En) :   Tensile tests of 11 kinds of veneer construction-plywood (shown in 1st report) have been carried out and relations between veneer construction and YOUNG's modulus in tension and tensile strength have been investigated.
   If we take the construction coefficients of plywood as f and K0, empirical formulae (8), (9), (10) are obtained, from which calculating formulae (10), (11), (12) are derived as to YOUNG's modulus. By similar method, calculating formulae for tensile strength (16), (17), (18) are derived.
   In this case,
              f : Number of glue lines in the unit thickness of plywood,
                  
              K0 : Coefficient of plywood as to veneer construction.
                  
              n : No. of plies
              ti (i = 1,2,…(n - 1)/2) :cf, Fig. 2
   Then YOUNG's modulus in tension and tensile strength of veneer and glue line (composite layer) are also calculated.