DETECTION OF STRESS STATE IN A PRESSURIZED THICK– WALLED CYLINDER BY MEASURING STRAINS ON ANNULAR PLATE SURFACE | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 82, Volume 16, 16th International Conference on Applied Mechanics and Mechanical Engineering., May 2014, Pages 1-11 PDF (240.47 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.2014.35765 | ||
| Author | ||
| E. E. EL-Soaly | ||
| Department of Mechanical Engineering, Higher Technological Institute, 6th of October Branch. | ||
| Abstract | ||
| ABSTRACT Measurement of Stresses and displacements inside thick cylinders, such as rocket propellant grain and barrels, is a difficult problem. It is observed that governing equations for solution of an annular plate, under edge moment, are analogous to that of thick walled cylinder under internal pressure. This analogy can be used to detect the stresses and displacement inside a thick walled cylinder by measuring of surface stresses and slope angle of an annular plate, which can be easily measured using electric wire strain gauges. In the present study, isotropic character for both plate and cylinder is considered. However, if same material is used for both, the obtained expressions are greatly simplified. Two cases of study are treated: a thick cylinder under internal pressure bounded by a rigid wall, as a model of rocket propellant grain, for the first, and with free outer-boundary, as a model of barrel for the second. | ||
| Keywords | ||
| pressure vessels; thick walled cylinders; circular plates; experimental stress analysis | ||
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