The Application of Acoustic Method for the Determination of Uniaxial Mechanical Stress Profile

Григорій Семенович Тимчик, Марина В'ячеславівна Філіппова, Марія Олександрівна Демченко

Abstract


Background. The article is devoted to the problem of determining the actual values of mechanical stress of metal structure sections in the process of operation without discharge using acoustic method.

Objective. Experimentation with the actual mechanical stress in the shelves shaped profiles of metal constructions that are in operation.

Methods. The method of acoustic diagnostics of stress-strain state of sections of metal constructions, based on the differential method of determining mechanical stress for the achievement of the aim of the research was proposed.

Results. Existing mechanical stresses in the shaped profiles of metal constructions for industrial installations in operation are studied. A comparative analysis of the values of the actual mechanical stresses in the shaped profiles calculated for the selected control points is carried out, resulting in a set deviation of the measured values from the calculated stresses in the range of 2.5–3.5 %.

Conclusions. The result of the experimental research and conducted analysis of the values of uniaxial mechanical stress measured using the system of diagnostics of stress-strain state of sections of metal constructions and voltages for the same points of the computational methods for profiles camber, allowed us to draw conclusions about the technical condition of metal constructions of industrial buildings in the construction phase.


Keywords


Shaped profiles; Actual stresses; Metal constructions

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DOI: https://doi.org/10.20535/1810-0546.2016.6.81928

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