simple – Wood Engineering

Accuracy of Deflection Calcs (and Eee)

By WoodEngineering Posted on April 1, 2022 Posted in Uncategorized Tagged with accuracy, accurate, allowable, beam, bend, calc, calculation, coefficient of variation, COV, deflection, E, elasticity, glulam, joist, load, lumber, modulus, modulus of elasticity, MOE, National Design Specification, NDS, rafter, sag, sawn, simple, span, variability, wood

In the example above (link) we calculated a deflection of 0.599 in. How accurate is this number? (I showed it to three significant figures … accurate to half a percent?) Leaving out, for now, the accuracy/precision of the other input, …

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E app (Apparent Modulus of Elasticity)

By WoodEngineering Posted on March 31, 2022 Posted in Uncategorized Tagged with apparent, beam, bend, bending, bounce, column, composite, concentrated, deflection, deform, design, E, E app, E min, E true, elasticity, G, Gere, girder, glulam, I-joist, joist, load, lumber, materials, mechanics, Mechanics of Materials, modulus, moment of inertia, national, National Design Specification, NDS, plane, plank, post, prefab, rotate, safe, sag, sawn, SCL, shear, simple, specification, stability, strain, stress, structural, Supplement, true, variability, wood, Wood Handbook (WH), Young’s modulus

E app (`Eee app’, `Eee apparent’, Apparent Modulus of Elasticity) is a design property for wood construction. It comes from the Modulus of Elasticity of the wood (E, MOE, Young’s Modulus). It’s not a `true’, or `pure’ property, and it …

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Accuracy of Deflection Calcs (and Eee)

E app (Apparent Modulus of Elasticity)