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2. Strain hardening exponent - Wikipedia

   en.wikipedia.org/wiki/Strain_hardening_exponent

   The uniaxial tension test is the primary experimental method used to directly measure a material's stress–strain behavior, providing valuable insights into its strain-hardening behavior. [1] The strain hardening exponent is sometimes regarded as a constant and occurs in forging and forming calculations as well as the formula known as Hollomon ...

3. Engineered cementitious composite - Wikipedia

   en.wikipedia.org/wiki/Engineered_cementitious...

   Unlike regular concrete, ECC has a tensile strain capacity in the range of 3–7%, [1] compared to 0.01% for ordinary portland cement (OPC) paste, mortar or concrete. ECC therefore acts more like a ductile metal material rather than a brittle glass material (as does OPC concrete), leading to a wide variety of applications.

4. Stress–strain analysis - Wikipedia

   en.wikipedia.org/wiki/Stress–strain_analysis

   Strain gauges can be used to experimentally determine the deformation of a physical part. A commonly used type of strain gauge is a thin flat resistor that is affixed to the surface of a part, and which measures the strain in a given direction. From the measurement of strain on a surface in three directions the stress state that developed in ...

5. Meyer's law - Wikipedia

   en.wikipedia.org/wiki/Meyer's_law

   The index n usually lies between the values of 2, for fully strain hardened materials, and 2.5, for fully annealed materials. It is roughly related to the strain hardening coefficient in the equation for the true stress-true strain curve by adding 2. [1] Note, however, that below approximately d = 0.5 mm (0.020 in) the value of n can surpass 3.

6. Stress–strain curve - Wikipedia

   en.wikipedia.org/wiki/Stress–strain_curve

   Beyond the Lüders strain, the stress increases due to strain hardening until it reaches the ultimate tensile stress. During this stage, the cross-sectional area decreases uniformly along the gauge length, due to the incompressibility of plastic flow (not because of the Poisson effect , which is an elastic phenomenon).

7. Compressometer - Wikipedia

   en.wikipedia.org/wiki/Compressometer

   Compressometer for testing concrete stress-strain relation. A compressometer is a device used to determine the strain or deformation of a specimen while measuring the compressive strength of concrete specimens, generally a cylinder. It can be used for rock, [1] concrete, soils, [2] and other materials. For concrete, the device usually comprises ...