METHOD OF KHRUSTALEV E.N. FOR DETERMINING HARDNESS AND STRENGTH PARAMETERS OF MATERIAL MEDIUM Russian patent published in 2017 - IPC G01N3/42

Abstract RU 2615517 C1

FIELD: physics.

SUBSTANCE: invention relates to the method for determining the hardness and the strength parameters of any material medium through the general physical parameters: ϕ° the internal friction angle and the specific cohesion C (MPa). According to the proposed method, the angle for the solid nonporous medium ϕ°= arccos [(D/2-S_o)/(D/2)] and the specific adhesion C=(σ_t/2)(1+sinϕ°)/cosϕ° (MPa) are determined, and the angle ϕ° and the specific cohesion C (MPa) for the porous disperse material medium are determined according to the law of Sh. Mohr-Coulomb τ_i=p_itgϕ°+C, and the hardness of any material medium is defined as .

EFFECT: improving the accuracy of the hardness determination.

3 dwg

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RU 2 615 517 C1

Authors

Khrustalev Evgenij Nikolaevich

Dates

2017-04-05—Published

2016-01-26—Filed