Transcription of Wood Handbook--Chapter 4--Mechanical Properties of …
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4 1 chapter 4 mechanical Properties of WoodDavid W. Green, Jerrold E. Winandy, and David E. KretschmannContentsOrthotropic Nature of Wood 4 1 Elastic Properties 4 2 Modulus of Elasticity 4 2 Poisson s Ratio 4 2 Modulus of Rigidity 4 3 Strength Properties 4 3 Common Properties 4 3 Less Common Properties 4 24 Vibration Properties 4 25 Speed of Sound 4 25 Internal Friction 4 26 mechanical Properties of Clear Straight-Grained Wood 4 26 Natural Characteristics Affecting mechanical Properties 4 27 Specific Gravity 4 27 Knots 4 27 Slope of Grain 4 28 Annual Ring Orientation 4 30 Reaction Wood 4 31 Juvenile Wood 4 32 Compression Failures 4 33 Pitch Pockets 4 33 Bird Peck 4 33 Extractives 4 33 Properties of Timber From Dead Trees 4 33 Effects of Manufacturing
Many of the mechanical properties of wood tabulated in this chapter were derived from extensive sampling and analysis procedures. These properties are represented as the average mechanical properties of the species. Some properties, such as tension parallel to the grain, and all properties for some imported species are based on a more limited ...
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