Experimental and numerical study of globe valve housing
| Autor: | Zarko Miskovic, Nenad Mitrović, Predrag Popović, Aleksandar Petrović, Nikola Momčilović, Taško Maneski, Miloš Milošević |
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| Rok vydání: | 2017 |
| Předmět: |
Digital image correlation
General Chemical Engineering Geometry finite element analysis 02 engineering and technology Classification of discontinuities lcsh:Chemical technology 01 natural sciences Displacement (vector) 010309 optics 0203 mechanical engineering Intersection 0103 physical sciences von Mises yield criterion Cylinder lcsh:TP1-1185 Strain gauge 3D digital image correlation method Physics geometrical discontinuity General Chemistry Finite element method axial loading 3D Digital Image Correlation Method sphere/cylinder junction 020303 mechanical engineering & transports globe valve housing |
| Zdroj: | Hemijska Industrija, Vol 71, Iss 3, Pp 251-257 (2017) Hemijska industrija |
| ISSN: | 2217-7426 0367-598X |
| DOI: | 10.2298/hemind160516035m |
| Popis: | Complex structure experimental analysis has always been a huge challenge for researchers. Conventional experimental methods (e.g., strain gauges) give only limited data sets regarding measurement on critical areas with high geometrical discontinuities. A 3D Digital Image Correlation method is an optical method that overcomes the limitations of conventional methods and enables full-field displacement and strain measurement of geometrically complex structures. System Aramis, based on Digital Image Correlation method, is used for experimental analysis and numerical model verification in this paper. Investigated complex structure is sphere/cylinder junction on globe valve housing subjected to axial loading. The highest experimentally measured von Mises strain values around 0.15% are recorded on cylinder/sphere intersection. Von Mises strain values on cylindrical and spherical part are several times smaller than on intersection itself. It is important to emphasize that, to the authors’ best knowledge, this is the first paper showing experimental results of 3D full and strain field of geometrically complex structure (sphere/cylinder intersection) on the intersection itself on pressure equipment. It is proven that 3D Digital Image Correlation method is fast and versatile method for recording strain during loading of complex structures. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR35031 and Grant no. TR35040] |
| Databáze: | OpenAIRE |
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