Summary
The tensor polynomial strength theory for anisotropic materials was coupled with finite-element analyses to predict the ultimate load capacity of several wood-composite I-beams. Small-specimen tests with the constituent materials provided elastic constants for the finite-element computations and ultimate strengths for development of strength tensors.
Ultimate load capacity, failure modes, and sites of failures in wood composite I-beams were predicted. Analytical results were in excellent agreement with data from full-scale I-beam tests and demonstrated the influence of web joints and material strengths on failure characteristics.
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The generous assistance of the Trus Joist Corporation, the Blandin Forest Products Company, and the Potlatch Corporation, and the financial support of the Cooperative State Research Service, USDA Forest Service, and the Alabama Agricultural Experiment Station at Auburn University are gratefully acknowledged. This is Paper 2316, Forest Research Laboratory, Oregon State University, Corvallis, Oregon
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Leichti, R.J., Tang, R.C. Predicting the load capacity of wood composite I-beams using the tensor polynomial strenght theory. Wood Sci. Technol. 23, 109–121 (1989). https://doi.org/10.1007/BF00350933
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DOI: https://doi.org/10.1007/BF00350933