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  2. Strength of materials - Wikipedia

    en.wikipedia.org/wiki/Strength_of_materials

    Volume, modulus of elasticity, distribution of forces, and yield strength affect the impact strength of a material. In order for a material or object to have a high impact strength, the stresses must be distributed evenly throughout the object. It also must have a large volume with a low modulus of elasticity and a high material yield strength. [7]

  3. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [ 1]

  4. Resilience (materials science) - Wikipedia

    en.wikipedia.org/wiki/Resilience_(materials_science)

    In material science, resilience is the ability of a material to absorb energy when it is deformed elastically, and release that energy upon unloading. Proof resilience is defined as the maximum energy that can be absorbed up to the elastic limit, without creating a permanent distortion. The modulus of resilience is defined as the maximum energy ...

  5. Flexural strength - Wikipedia

    en.wikipedia.org/wiki/Flexural_strength

    Flexural strength. The flexural strength is stress at failure in bending. It is equal to or slightly larger than the failure stress in tension. Flexural strength, also known as modulus of rupture, or bend strength, or transverse rupture strength is a material property, defined as the stress in a material just before it yields in a flexure test ...

  6. Young's modulus - Wikipedia

    en.wikipedia.org/wiki/Young's_modulus

    Young's modulus (or Young modulus) is a mechanical property of solid materials that measures the tensile or compressive stiffness when the force is applied lengthwise. It is the modulus of elasticity for tension or axial compression. Young's modulus is defined as the ratio of the stress (force per unit area) applied to the object and the ...

  7. Section modulus - Wikipedia

    en.wikipedia.org/wiki/Section_modulus

    Section modulus is a geometric property for a given cross-section used in the design of beams or flexural members. Other geometric properties used in design include area for tension and shear, radius of gyration for compression, and second moment of area and polar second moment of area for stiffness. Any relationship between these properties is ...

  8. Compressive strength - Wikipedia

    en.wikipedia.org/wiki/Compressive_strength

    In mechanics, compressive strength (or compression strength) is the capacity of a material or structure to withstand loads tending to reduce size ( compression ). It is opposed to tensile strength which withstands loads tending to elongate, resisting tension (being pulled apart). In the study of strength of materials, compressive strength ...

  9. Elasticity tensor - Wikipedia

    en.wikipedia.org/wiki/Elasticity_tensor

    Elasticity tensor. The elasticity tensor is a fourth-rank tensor describing the stress-strain relation in a linear elastic material. [ 1][ 2] Other names are elastic modulus tensor and stiffness tensor. Common symbols include and . The defining equation can be written as. where and are the components of the Cauchy stress tensor and ...