The influence of eccentricity on the stress-strain state of the metal chimneys shell
V. V. Gubanov, V. N. Vasylev, A. V. Golikov, A. N. Kulchytskyy
Donbas National Academy of Civil Engineering and Architecture
Annotation: Methodology for conducting laboratory experiments using a scale model of the chimney section (conjugation node of cylindrical and conical parts) has been given to determine the effects of geometrical deviation in the form of eccentricity on the stress-strain state of shells of metal chimneys in this article. According to the result of the full-scale measurement of a scale model, there were identified and described the geometrical variations in the form of eccentricity and a local dimple. Using the obtained data, a FE model in the software package Ansys Workbench 14,0 was built, which allows taking into account the influence of geometrical deviations on the bearing capacity of the shells of metal chimneys. On the first phase the comparison of numerical and experimental data was made for the purpose of determining the validity of numerical models for the area of eccentricity. The comparison on equivalent stresses (σeq) showed the difference 1–15 %. On the second phase a comparison between sections with and without geometrical deviation provided, for the numerical models and for the pilot ones.
Keywords: steel chimney, geometrical deviation, equivalent, local stresses, scale model, the stress concentration.
Pages: 191-202.
Link for citation: Gubanov, V. V.; Vasylev, V. N.; Golikov, A. V. [et al.]. The influence of eccentricity on the stress-strain state of the metal chimneys shell. – Text : electronic. – In: Metal Constructions. – 2013. – Vol. 19, N 4. – Р. 191-202. – URL: https://donnasa.ru/publish_house/journals/mk/2013-4/01_Gubanov_Vasylev_Golikov_Kulchytskyy.pdf (date of access: 03.07.2024). (in Russian)
Vol. 19, N 4 (2013)Journal: Metal Constructions
Publish house: Donbas National Academy of Civil Engineering and Architecture