strain

(noun)

The amount by which a material deforms under stress or force, given as a ratio of the deformation to the initial dimension of the material and typically symbolized by $\epsilon$ is termed the engineering strain. The true strain is defined as the natural logarithm of the ratio of the final dimension to the initial dimension.

Related Terms

(noun)

The amount by which a material deforms under stress or force, given as a ratio of the deformation to the initial dimension of the material and typically symbolized by ε is termed the engineering strain. The true strain is defined as the natural logarithm of the ratio of the final dimension to the initial dimension.

Related Terms

Examples of strain in the following topics:

  • Stress and Strain

    • The ratio of force to area $\frac{F}{A}$ is called stress and the ratio of change in length to length $\frac{\Delta L}{L}$ is called the strain.
    • The ratio of force to area $\frac{F}{A}$ is called stress and the ratio of change in length to length $\frac{\Delta L}{L}$ is called the strain.
    • Stress and strain are related to each other by a constant called Young's Modulus or the elastic modulus which varies depending on the material.
    • Using Young's Modulus the relation between stress and strain is given by: $\text{stress} = Y\cdot\text{strain}$.

  • Elasticity, Stress, and Strain

    • Elasticity is a measure of how much an object deforms (strain) when a given stress (force) is applied.
    • Strain is the change in length divided by the original length of the object.

  • Fracture

    • Fracture is caused by a strain placed on an object such that it deforms beyond its elastic limit and breaks.
    • When a strain is applied to a material it deforms elastically proportional to the force applied.
    • The zone in which it bends under strain is called the elastic region.
    • Past that point, if more strain is added, the object may permanently deform and eventually fracture.
    • This is usually determined for a given specimen by a tensile test, which charts the stress-strain curve .

  • Stress and Strain

  • Newton and His Laws

    • Strain: by using a machine known as pulley you can easily raise or lower a massive body

  • Energy, Intensity, Frequency, and Amplitude

  • Hooke's Law

    • In simple terms, Hooke's law says that stress is directly proportional to strain.

  • General Problem-Solving Tricks

    • Stresses and strains are of no interest but turning effects are.

  • Properties of Spherical Harmonics and Legendre Polynomials

    • Examples of tensor fields include the stress and strain inside continuous bodies.