
Stress-strain state prediction for statically indeterminate system with accounting for malfunctioning of rod elements production
Author(s) -
Oleg Ivanovich Efimov,
Aidar Salimov
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/890/1/012067
Subject(s) - statically indeterminate , probabilistic logic , tension (geology) , indeterminate , value (mathematics) , stress (linguistics) , rod , statement (logic) , distribution (mathematics) , state (computer science) , computer science , mathematics , structural engineering , mathematical analysis , engineering , algorithm , statistics , law , physics , medicine , linguistics , philosophy , alternative medicine , classical mechanics , pathology , pure mathematics , moment (physics) , political science
The use of pre-tension as a regulating mechanism in structures that are statically indeterminate rod systems usually implies the absence of initial forces and stresses. It is necessary to take into account its initial stresses from probabilistic positions and adjust the pre-tension parameters accordingly. The laws of distribution of deviations of rod elements or shipment-sized sets of details from nominal sizes and shapes are usually known. The technique of determination of reliable enough value of initial effort in the certain connection of interest of the statically indeterminate system (SIS) because of deviations of rod elements or shipment-sized sets of details from their nominal sizes and forms is presented. Thus, deviations of both rod elements and dispatch brands from the nominal sizes and forms are known to be random variables with symmetric laws of distribution. The task is solved in linear statement with result of research giving the opportunity to determine the value of initial effort using just one static design calculation.
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