出典:Wiktionary
出典:『Wiktionary』 (2026/05/11 02:43 UTC 版)
For Thomas Young, English scientist.
出典:Wikipedia
出典:『Wikipedia』 (2011/06/09 18:13 UTC 版)
In solid mechanics, the slope of the stress-strain curve at any point is called the tangent modulus. The tangent modulus of the initial, linear portion of a stress-strain curve is called Young's modulus, also known as the tensile modulus. It is defined as the ratio of the uniaxial stress over the uniaxial strain in the range of stress in which Hooke's Law holds. It is a measure of the stiffness of an elastic material and is a quantity used to characterize materials. It can be experimentally determined from the slope of a stress-strain curve created during tensile tests conducted on a sample of the material. In anisotropic materials, Young's modulus may have different values depending on the direction of the applied force with respect to the material's structure.
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the young
若いころに.
a young'un
the young generation
the flush of youth
a boy
the condition of being the youngest