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MENTAL MODEL · M4935

Young's Modulus

Young's Modulus
TechnicalHigh supportPhysics
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A physical quantity that describes the ability of a solid material to resist deformation (stiffness). The larger the Young's modulus, the harder the material, and the more difficult it is to stretch or compress (e.g., steel); the smaller it is, the softer the material (e.g., rubber).

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Trade-off between resistance to compression and elasticity. When selecting and employing people, those with a high Young's modulus (high rigidity) have strong resistance to pressure and are not easily deformed, but once the limit is exceeded, they will break directly (brittleness); those with a low Young's modulus (high elasticity) are easily deformed (compromise), but can withstand greater deformation without collapsing.

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Material mechanics: the ratio of stress to strain under uniaxial stress, measuring the stiffness of a solid within the elastic range (E = σ/ε).

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Young%27s_modulusZH · Explicit
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