Chapter 4 Mechanical Properties of Wood David W. Green, Elastic Properties 4–2 Modulus of Elasticity 4–2 Poisson’s Ratio Redwood 0.089 0.087 0.066 0.077
Elastic Modulus: 1,220,000 lb f /in 2 (8.41 GPa) Curly figure or Redwood burl (sometimes referred to as “lace” or by the name Vavona) are occasionally seen.
The modulus of elasticity is normally measured in pounds per square inch (psi) and is abbreviated as MOE or E. Values for E relating to wood properties are commonly in terms of million psi; for simplicity, a board with a modulus of elasticity of 2,100,000 psi.
modulus of elasticity (e and emin) – Modulus of elasticity (also known as Young’s Modulus) measures the ratio of the amount a wood member will deflect in proportion to an applied load. E is a measurement of stiffness and not a strength property. E represents average properties, and Emin is the fifth percentile property. Emin is the modulus of elasticity for beam and column stability calculations.
Design values provided for Western softwood species manufactured and shipped by mills in the 12 contiguous Redwood Inspection Modulus of Elasticity
PROPERTIES OF WOOD AND STRUCTURAL WOOD PRODUCTS 3.1 INTRODUCTION Wood differs from other construction materials because it is produced in a living tree.
scribe the elastic behavior of wood: three moduli of elasticity. E, three moduli. Redwood. 0.089. 0.087. 0.066. 0.077. 0.011. Spruce, Sitka. 0.043. 0.078. 0.064.... [ Contact US] Wood Strengths - WoodWorkWeb. Jan 17, 2008 A wood strength rating chart by type. Redwood, Old-growth, 0.40, 1.34, 19, 6,150, 700, 940.
Redwood Decking – Domestic Alternative SPECIES Approximate Weight per MBF at 10% MC Modulus of Rupture (psi) Modulus of Elasticity (1000 psi) Maximum Crushing Strength (psi) Side Hardness (lbs) Shear (psi) California Redwood 2,600 7,900 1,100 5,220 420 1,110 Redwood is an incredible material to use for your outdoor projects.
Modulus of Elasticity (MOE) Ratings for Various Species of Wood Modulus of elasticity ratings are derived from the stiffness or California Redwood
Modulus of rupture, air dry kg/sq.mm. Modulus of elasticity, air dry, kg/sq.mm. Alder: 0.38: 23.7: Applewood or wild apple: Pyrus malus: 0.745: 46.51: 8.96: 894. Ash, black: Fraxinus nigra: 0.526: 32.84: 8.97: 1126. Ash, blue: quadrangulata: 0.603: 37.65: 9.82: 984. Ash, green: Fraxinus pennsylvanica lanceolata: 0.610: 38.08: 10.04: 1170. Ash, white: Fraxinus americana: 0.638: 39.83: 11.01: 1249.
Young's Modulus or Tensile Modulus alt. Modulus of Elasticity - and Ultimate Tensile and Yield Strength for steel, glass, wood and other common materials
Spruce-Pine-Fir (S-P-F) Quebec wood stamped S-P-F (Spruce-Pine-Fir) is the most popular wood in Canada for construction purposes due to its great strength.
The values for the bulk Young's Modulus of a wide variety of woods are listed in their Table Modulus of Elasticity (MPa) 12% moisture content; Redwood (Young
The following table is Structural Lumber Wood Engineering Properties. Modulus of Elasticity of Wood, Wood Engineering Design Data and Elastic ratios.
of redwood varied with pattern and depth of incisions. Values for energy absorbed were reduced most; for modulus of elasticity, least; and for modulus of rupture, to an intermediate degree. Two open patterns of incising, on the average, reduced modulus of rupture about 10 percent and modulus of elasticity about 5 percent.
Wood strength, including the (also known as the modulus of rupture) The stiffness or modulus of elasticity indicates how much the wood will deflect when a
In the simplest terms, the modulus of elasticity (MOE) measures a wood’s stiffness, and is a good overall indicator of its strength.
Comparison of Ipe decking to other decking material. Although more durable than cedar and redwood, Modulus of Elasticity (stiffness) - psi: 3,140,000:
Maximum Allowable Fiberstress. Design Values for Visually Graded Timbers 5" X 5" and Larger See NDS 2.3 for a description of design value adjustment factors
Modulus of Rupture: 8,640 lb f /in 2 (59.6 MPa) Elastic Modulus: 1,315,000 lb f /in 2 Color/Appearance: White Spruce is typically a creamy white, with a hint of