PRESSURIZED RING-REINFORCED OVAL CYLINDER COMPARISON OF THEORY AND DTMB TESTS
POLYTECHNIC INST OF BROOKLYN NY DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS
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Theoretical results for the stresses occuring in a ring-reinforced oval cylindrical shell subjected to a hydrostatic pressure are compared with corresponding test results recently published by the David Taylor Model Basin. The cylinder treated is composed of two different skin thicknesses. The theoretical results are obtained by using the local skin thickness of the cylinder in solutions developed for ring reinforced short oval cylinders of uniform thickness. Good agreement is shown to exist between the results of theory and test for all circumferential stresses and for the axial bending stresses, but not for the axial membrane stresses. It is indicated that the solution based upon using the local skin thickness can not be expected to yield accurate results for these latter stresses. However, these can be shifted towards the test results by applying a simple one-dimensional correction.
- Fluid Mechanics