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  2. Wood - Wikipedia

    en.wikipedia.org/wiki/Wood

    Wide-ringed wood is often called "second-growth", because the growth of the young timber in open stands after the old trees have been removed is more rapid than in trees in a closed forest, and in the manufacture of articles where strength is an important consideration such "second-growth" hardwood material is preferred.

  3. Strength of materials - Wikipedia

    en.wikipedia.org/wiki/Strength_of_materials

    In general, the yield strength of a material is an adequate indicator of the material's mechanical strength. Considered in tandem with the fact that the yield strength is the parameter that predicts plastic deformation in the material, one can make informed decisions on how to increase the strength of a material depending on its microstructural ...

  4. Ultimate tensile strength - Wikipedia

    en.wikipedia.org/wiki/Ultimate_tensile_strength

    The ultimate tensile strength of a material is an intensive property; therefore its value does not depend on the size of the test specimen.However, depending on the material, it may be dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.

  5. Wood science - Wikipedia

    en.wikipedia.org/wiki/Wood_science

    Wood physics, which constitutes an essential component of the field of wood science, building upon discoveries in wood chemistry, wood anatomy (xylem), and biology, as well as principles from classical physics, mechanics, and materials strength. [14]

  6. Specific strength - Wikipedia

    en.wikipedia.org/wiki/Specific_strength

    The specific strength is a material's (or muscle's) strength (force per unit area at failure) divided by its density. It is also known as the strength-to-weight ratio or strength/weight ratio or strength-to-mass ratio. In fiber or textile applications, tenacity is the usual measure of specific strength.

  7. Orthotropic material - Wikipedia

    en.wikipedia.org/wiki/Orthotropic_material

    Wood is an example of an orthotropic material. Material properties in three perpendicular directions (axial, radial, and circumferential) are different. In material science and solid mechanics, orthotropic materials have material properties at a particular point which differ along three orthogonal axes, where each axis has twofold rotational ...

  8. Hankinson's equation - Wikipedia

    en.wikipedia.org/wiki/Hankinson's_equation

    Hankinson's equation (also called Hankinson's formula or Hankinson's criterion) [1] is a mathematical relationship for predicting the off-axis uniaxial compressive strength of wood. The formula can also be used to compute the fiber stress or the stress wave velocity at the elastic limit as a function of grain angle in wood.

  9. Parallel-strand lumber - Wikipedia

    en.wikipedia.org/wiki/Parallel-strand_lumber

    It is a member of the structural composite lumber (SCL) family of engineered wood products. [1] The design strength of PSL is greater than that of sawn lumber as the strands are glued together directionally and under high pressure. This results in a much denser and stronger material.

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