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Bending Strength of Lumber

1990; American Society of Civil Engineers; Volume: 116; Issue: 5 Linguagem: Inglês

10.1061/(asce)0733-9445(1990)116

1943-541X

Andrew Buchanan,

Tree Root and Stability Studies

The bending strength of lumber is a complex problem. Bending strength depends on three main factors, the ratio of tension to compression strength of the material, nonlinear ductile behavior in the compression zone, and size‐dependent brittle fracture in the tension zone. In this paper, the relationships between bending strength and axial tension and compression strengths are explained in detail. The results of large‐scale, in‐grade lumber tests are used to predict ultimate bending strengths throughout the distribution of lumber strength properties.