Open AccessOn the properties of the failure probability function in reliability analysis of constructions and structures with regulation of their stress-strain state
Author(s) -
V. G. Sebeshev,
A. A. Zhbanov,
А. А. Шестаков
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/972/1/012005
Subject(s) - reliability (semiconductor) , nonlinear system , stress (linguistics) , function (biology) , structural engineering , reliability engineering , inverse , state (computer science) , stress–strain curve , bending , computer science , mathematics , mathematical optimization , engineering , algorithm , finite element method , physics , geometry , linguistics , philosophy , power (physics) , quantum mechanics , evolutionary biology , biology
The properties and peculiarities of the failure probability function in dependence on the stress-strain state regulators in various (direct, inverse, optimization) problems of calculating the reliability of constructions and structures have been investigated and described. Predicting the possible changes in the probability of failure due to regulators’ varying, on the basis of the formulated signs, allows us to work out the algorithms for finding a rational and optimal regulation of the deformable system state parameters. The qualitative and quantitative illustrations of the identified properties of the failure probability function for multi-span beams with the nonlinear regulation of a bending moments are presented. The possibilities to reveal the areas of permissible values of regulators by the target reliability using a complex reliability indicator that takes into account the structure’s volume of material are shown.