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  2. Stress–strain curve - Wikipedia

    en.wikipedia.org/wiki/Stressstrain_curve

    Stressstrain curve for brittle materials compared to ductile materials. It is possible to distinguish some common characteristics among the stressstrain curves of various groups of materials and, on this basis, to divide materials into two broad categories; namely, the ductile materials and the brittle materials. [1]: 51

  3. Ramberg–Osgood relationship - Wikipedia

    en.wikipedia.org/wiki/Ramberg–Osgood_relationship

    The Ramberg–Osgood equation was created to describe the nonlinear relationship between stress and strain—that is, the stressstrain curve—in materials near their yield points. It is especially applicable to metals that harden with plastic deformation (see work hardening), showing a smooth elastic-plastic transition.

  4. Yield (engineering) - Wikipedia

    en.wikipedia.org/wiki/Yield_(engineering)

    The value for this is commonly set at 0.1% or 0.2% plastic strain. [14] The offset value ... In the context of tensile testing and the engineering stress-strain curve ...

  5. Young's modulus - Wikipedia

    en.wikipedia.org/wiki/Young's_modulus

    Young's modulus is the slope of the linear part of the stressstrain curve for a material under tension or compression. 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.

  6. Stress–strain analysis - Wikipedia

    en.wikipedia.org/wiki/Stressstrain_analysis

    Stressstrain analysis (or stress analysis) is an engineering discipline that uses many methods to determine the stresses and strains in materials and structures subjected to forces. In continuum mechanics , stress is a physical quantity that expresses the internal forces that neighboring particles of a continuous material exert on each other ...

  7. Toughness - Wikipedia

    en.wikipedia.org/wiki/Toughness

    Toughness as defined by the area under the stressstrain curve for one unit volume of the material. In materials science and metallurgy, toughness is the ability of a material to absorb energy and plastically deform without fracturing. [1] Toughness is the strength with which the material opposes rupture.

  8. Deformation (engineering) - Wikipedia

    en.wikipedia.org/wiki/Deformation_(engineering)

    This is not true since the actual area will decrease while deforming due to elastic and plastic deformation. The curve based on the original cross-section and gauge length is called the engineering stressstrain curve, while the curve based on the instantaneous cross-section area and length is called the true stressstrain curve. Unless ...

  9. Compressive strength - Wikipedia

    en.wikipedia.org/wiki/Compressive_strength

    True strain, also known as logarithmic strain or natural strain, provides a more accurate measure of large deformations, such as in materials like ductile metals [3] ´ = ⁡ (/) = (+) The compressive strength therefore corresponds to the point on the engineering stressstrain curve (,) defined by = =,