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What are the material properties of wood?

What are the material properties of wood?

The mechanical properties of wood include strength in tension and compression (as measured in axial and transverse directions), shear, cleavage, hardness, static bending, and shock (impact bending and toughness).

What are the 12 properties of wood?

The main physical properties of wood include: color, luster, texture, macro-structure, odor, moisture, shrinkage, internal stresses, swelling, cracking, warping, density, sound – electro – thermal conductivity.

What is the elasticity of wood?

The tables below show the values of Young’s modulus (modulus of elasticity) and Poisson’s ratio at room temperature for woods and composite materials used in engineering….Wood.

Material Modulus of elasticity
Wood species GPa 106 psi
Angelim pedra (Hymenolobium petraeum): 12.9 1.87
Casca grossa (Vochysia spp): 16.2 2.35

What are useful properties of wood?

Most important properties of wood and timber may be discussed under the following general headings.

  1. Color and Odor. Most trees are characterized by a typical color and odor.
  2. Specific Gravity.
  3. Moisture Content.
  4. Grain.
  5. Shrinkage and Swelling.
  6. Strength.

Why is wood orthotropic?

Wood is an orthotropic and anisotropic material with unique and independent properties in different directions. Because of the orientation of the wood fibers and the manner in which a tree increases in diameter as it grows, properties vary along three mutually perpendicular axes: longitudinal, radial, and tangential.

What are three wood properties?

Wood is an orthotropic and anisotropic material. Be- cause of the orientation of the wood fibers and the manner in which a tree increases in diameter as it grows, properties vary along three mutually perpen- dicular axes: longitudinal, radial, and tangential (Fig. 3).

Is wood highly flammable?

Wood is naturally combustible. This means that buildings with wooden walls, floors and roof are at an increased risk of a fire. Fire-retardant-treated wood is wood that is made more resistant to ignition and fire spread through the use of retardant chemicals.

Is wood tough or brittle?

Experimental analyses show that it is a brittle material. However, properties of wood always depend on moisture content. You might want to include viscoelastic properties in your model as well. As you mentioned correctly it is orthotrpic elastic.

Does wood have high Youngs modulus?

EL values from bending can be increased by 10% to remove this effect approximately….YOUNG’S MODULUS (MODULUS OF ELASTICITY) OF WOOD.

Elastic ratios for various woods at approximately 12% moisture content
Kind of Wood ET/EL ER/EL
Oak, red 0.082 0.154
Oak, white 0.072 0.163
Sweetgum 0.050 0.115

What are the strength properties of wood?

The strength of the wood is fundamentally affected by the direction in which it is loaded in relation to the grain. In the direction of the grain, the bending strength is directly proportional to the density of the wood. In uniform, flawless wood, the bending strength is as great as the tensile strength.

What are uses of wood?

Wood is used in interiors as a surface material for walls, ceilings and floors, furniture, stairs, windows and doors, in features and decorations, etc. The use of wood extends from small private facilities to large public social and official premises. Very often, wood is used because of the way it looks.