Layered structures mechanical properties assessment by dynamic tests

Beskopylny, Alexey; Lyapin, A. A.; Andreev, Vladimir I.

doi:10.1051/matecconf/201711700018

Cited by 24 publications

(11 citation statements)

References 13 publications

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“…The proposed method makes it possible to investigate the stress-strain state of reinforced beams from a multimodule material under arbitrary loading, for various elastic bases, various geometric and mechanical characteristics of beams. The research results for some bars coincide with the results of the Timoshenko approximate method [13,14]. However, the proposed method provides an opportunity to analyze a deflected mode of any reinforced rectangular cross-section beam on elastic foundation filled with bimodulus filler.…”

Section: Resultssupporting

confidence: 70%

Stress-strain state of reinforced bimodulus beam on an elastic foundation

Beskopylny

Kadomtseva

Strelnikov

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. The paper provides the calculation theory of an arbitrary supported and arbitrary loaded reinforced beam filled with bimodulus material. The formulas determining normal stresses, bending moments, shear forces, rotation angles and a deflection of a rectangular crosssection beam reinforced with any number of bars aligned parallel to the beam axis have been obtained. The numerical study has been carried out to investigate an influence of a modulus of subgrade reaction on values of maximum normal stresses, maximum bending moments and a maximum deflection of a hinged supported beam loaded with a point force or uniform distributed load. The estimation is based on the method of initial parameters for a beam on elastic foundation and the Bubnov-Galerkin method. Values of maximum deflections, maximum bending moments and maximum stresses obtained by these methods coincide. The numerical studies show that taking into consideration the bimodulus of material leads to the necessity to calculate the strength analysis of both tensile stresses and compressive stresses.

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Section: Resultssupporting

confidence: 70%

Stress-strain state of reinforced bimodulus beam on an elastic foundation

Beskopylny

Kadomtseva

Strelnikov

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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“…The buckling analysis relates to geometrically nonlinear problems and to solve differential equations often use Bubnov-Galerkin methods [10,11], genetic algorithms [12] and practices based on Fourier transforms [13,14,15].…”

Section: Matec Web Of Conferences 193mentioning

confidence: 99%

Buckling analysis of rod structure of the two-tier dome

2018

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Abstract. The paper deals with the problem of calculating the rod structure of a two-tier dome for stability. Such structures consisting of straight rod elements are widely used in practice and have a number of significant advantages. First of all, it is a high rigidity with a low mass. Also, this type of construction is well resistant to dynamic loads. At the same time, the dome model allows for the bifurcation of points on the equilibrium state curve of the system. The problem of the dynamic stability of double dome is solved by the principle of stationarity of total potential energy of the system. The analysis of the obtained solution is carried out, and the equilibrium state diagram for a two-tier core dome is constructed.

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“…Depending on the building purpose the methods to determine the structures properties are different. These are non-destructive tests based on indentation methods that used for metal structures [1,2], determination of the rheological parameters for the creep models [3], identification of the structures properties [4].…”

Section: Introductionmentioning

confidence: 99%

Complex method of defects diagnostics in underground structures

et al. 2018

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Abstract. The article presents a comprehensive method for diagnosing underground structures using the example of an underground pedestrian crossing located in Rostov-on-Don. The problem of assessing the condition of buildings and structures is very relevant at all stages of the life cycle. There is a special need for continuous monitoring of bearing structures for many buildings with critical applications especially if reliability of which determines the life and health of people. This work considered complex method included geodetic research, geological study of the state of subsoil, analysis of state of steel and reinforced concrete structures, vibro diagnostics of load-bearing structures under dynamic technogenic impacts and an assessment of the mechanical characteristics of steel and reinforced concrete structures in order to develop a conclusion on the overall state of the transition and the possibility of its further operation. Analysis of the response from arbitrary non-stationary effects on structural elements is carried out on the base of the calculated spectrum of reference impacts.

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Layered structures mechanical properties assessment by dynamic tests

Cited by 24 publications

References 13 publications

Stress-strain state of reinforced bimodulus beam on an elastic foundation

Stress-strain state of reinforced bimodulus beam on an elastic foundation

Buckling analysis of rod structure of the two-tier dome

Complex method of defects diagnostics in underground structures

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