Load-Carrying Efficiency of Homogeneous Wood Composites
Keywords:Pseudotsuga menziesii, particleboard, fiberboard, composition board, strength, stiffness, modulus of elasticity, specific gravity, compression strength, models
AbstractLoad-carrying efficiency is defined here on the basis of load-carrying capacity of a composite board per unit weight. Relationships are derived for evaluating the load-carrying efficiency for tension, compression, shear, and bending applications. As an illustration of the application of the theory, limited experimental data are provided for both particleboard and fiberboard to illustrate that optimum load-carrying efficiency does not necessarily occur at the highest density at which these composites can be manufactured. Further, it is shown that optimum load-carrying efficiency varies for different products and load types. These optimum points may not occur at the highest strength and stiffness values attainable for these products.
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