E.N. KHRUSTALEV METHOD OF DETERMINING DEFORMATION OF MATERIAL MEDIUM UNDER PRESSURE Russian patent published in 2015 - IPC G01B21/32 

FIELD: physics.

SUBSTANCE: method includes, at depth h of the medium, performing deformation thereof with pressure p through a hard flat die, determining the modulus of overall and elastic deformation of the medium E₀ (kG/cm²), E_el (kG/cm²), measuring the uniform thickness of the medium under the die with a width w (cm) or diameter d (cm), wherein the method includes, at the depth h of the structured medium, determining its internal friction angle and specific cohesion c_str (kG/cm²), calculating the internal friction angle of a medium with a disturbed structure as and specific cohesion thereof determining the value of the actively compressed thickness of the material medium under the die using the relationship - for an elastic structured medium and - for a medium with a disturbed structure, where d (cm) is the diameter of a circular die equivalent to a rectangular die w×l (cm×cm) with a side w<l; the value of elastic deformation of the decompressed medium under die pressure is calculated using the relationship and the value of active collapse of the material medium under excess die pressure p (kG/cm²) in the medium is determined from the relationship

EFFECT: simple method of determining elastic and overall deformation of a compressible material medium.

1 dwg