METHOD DETERMINING MODULUS OF ELASTICITY Russian patent published in 2004 - IPC

FIELD: establishment of strength properties of materials. SUBSTANCE: method determining modulus of elasticity consists in usage of monocrystal in the form of fiber. Period of crystal lattice is measured first by X-ray method and then by formula E_young = Q₁•Q₂/4•π•ε₀•r₂•a20

, where Q₁ = Q₂ = e = 1,6•10^-19, C is quantity of interacting charges; π = 3,14; ε₀ = 8,85•10^-12 C²/nm² is electric constant; r is distance between interacting charges depending on a₀ and direction of sliding over glide plane; a₀ is period of crystal lattice; and then modulus of elasticity is computed. EFFECT: reduced labor input to method determining modulus of elasticity, scope for prediction of mechanical properties of materials with due account of anisotropy of these properties. 1 tbl