A Parametric Finite Element Geometric Analysis of a Pressurized Sphere with Cylindrical Flush Nozzle Outlet

Autor:	Murat Makaraci
Rok vydání:	2005
Předmět:	Engineering Deformation (mechanics) business.industry Mechanical Engineering Nozzle Structural engineering Mechanics Curvature Spherical shell Pressure vessel Finite element method Stress (mechanics) Mechanics of Materials Safety Risk Reliability and Quality business Stress concentration
Zdroj:	Journal of Pressure Vessel Technology. 127:369-372
ISSN:	1528-8978 0094-9930
Popis:	A spherical, internally pressurized vessel with cylindrical flush nozzle outlet is analyzed in a parametric, linear displacement based finite element scheme. Geometric effects of outer convex radius design on the whole vessel body are investigated. An inside sharp corner where spherical section is joined with the flush nozzle outlet contributes to stress as well as degree of curvature in the outer convex radius. Stress and deformation states exhibit material, geometry, and internal pressure level dependencies. An important feature of the method, mesh convergence, is also validated for reliability of the results. Severe stress distributions and strain accumulations can be reduced through controlling outer geometric parameters. Materials having diverse mechanical properties such as carbon steel, Ti-Al-V alloy, near-eutectic Sn63-Pb37 solder alloy, and Nylon 66 are used for the vessel structure to reveal material dependence. Lower order elements are recommended for computational analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f5278701a88fb58b0c665485badbe2d https://doi.org/10.1115/1.2042472 Zobrazit plný text záznamu