Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) Web of Science
  • Intensity Coefficients In The Angular Zone Of Structures
  • UDC 624.042.12:624.044.2 DOI: 10.33622/0869-7019.2020.09.41-47
    Lyudmila Yu. FRISHTER,
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. A relevant task in terms of ensuring reliable functioning of buildings and structures is studying the structural areas with complex boundary shapes. Areas with geometrically non-linear shape of boundaries - angular cut-outs, cuts, and element connections with rupturing forced deformations - are characterized by singularities of the stress-strain state. In experimental research of areas with complex boundary shapes it's necessary to take into account the difference between stress intensity factors and deformation intensity factors. This paper describes a procedure for obtaining the stress-strain state in neighborhood of the angular cut-out apex on the domain boundary using stress intensity factors and deformation intensity factors for a variety of homogeneous boundary conditions. In the angular cut-out area on the domain boundary, the stress-strain state is characterized by limit values of stresses and deformations, similar to stress intensity factors used with force criteria in fracture mechanics. Taking into account the ratios of stress and deformation intensity factors in experimental analysis of the stress-strain state in angular areas of structures is practically relevant for determining critical values of stress and deformation intensity factors.
    Key words: angular area of structures, stress-strain state, stress intensity factors, deformation intensity factors, homogeneous boundary conditions.
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  • For citation: Frishter L. Yu. Intensity Coefficients in the Angular Zone of Structures. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2020, no. 9, pp. 41-47. (In Russian). DOI: 10.33622/0869-7019.2020.09.41-47.