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- W3000507974 abstract "In the process of manufacturing arched steel thin-walled cold-formed profiles with trapezoidal corrugations, by rolling a flat profile into the arch through a system of rollers, in the normal section profile longitudinal technological residual normal stress are formed, unevenly distributed over the height of the section. Currently, these residual stresses are not taken into account in the design, which leads to errors in the calculations for strength and local stability of arched structures made of arched profiles. There is a number of ways for defining the residual stresses in steel structures, including arched thin-walled profiles. Still, they have a number of significant disadvantages associated with the low accuracy of the values obtained and the complexity of stress calculations. The purpose of this work is to develop a method for defining the residual longitudinally oriented normal stresses in the flanges of arched cold–formed profiles with trapezoidal corrugations, combining the simplicity of the measurement technique, calculation and high accuracy of the obtained stress values. As a result, we obtained a method of defining the residual longitudinally oriented normal stresses in cross-sections of the arched profile as in the compressed and stretched flanges for easy calculation and high enough for engineering calculations, the accuracy of measurements of parameters of the profile to calculate stresses. The proposed method can be used to define the longitudinal residual stresses in normal sections of arched profiles with subsequent consideration of these stresses in the design of structures." @default.
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- W3000507974 date "2020-01-01" @default.
- W3000507974 modified "2023-09-26" @default.
- W3000507974 title "Method for defining residual stresses in arched profiles" @default.
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- W3000507974 doi "https://doi.org/10.1088/1742-6596/1441/1/012113" @default.
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