Experimental/numerical investigation of mechanical behaviour of internally pressurized cylindrical shells with external longitudinal and circumferential semi-elliptical defects

This paper presents an experimental-numerical investigation on the mechanical behaviour of pressurized cylindrical shells with external longitudinal and circumferential cracks of semi-elliptical shape. The research is motivated by the need to develop advanced design methodologies for shell structure...

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Bibliographic Details
Published in:Alexandria engineering journal 2018-09, Vol.57 (3), p.1339-1347
Main Authors: Moustabchir, H., Arbaoui, J., Azari, Zitouni, Hariri, S., Pruncu, Catalin Iulian
Format: Article
Language:English
Subjects:
Engineering Sciences
Finite element simulations
Internally pressurized cylindrical shells
Longitudinal and circumferential semi-elliptical defects
Materials and structures in mechanics
Mechanics
Strain gauges
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Summary:This paper presents an experimental-numerical investigation on the mechanical behaviour of pressurized cylindrical shells with external longitudinal and circumferential cracks of semi-elliptical shape. The research is motivated by the need to develop advanced design methodologies for shell structures. For that purpose, strain gauges are utilized to monitor strain concentrations near the cracks, and finite element simulations are carried out to predict the corresponding stress intensity factor distributions. A good agreement between numerical simulations and experimental data is found. This confirms that virtual simulations/calculations provide a reliable approach to evaluating mechanical behaviour of pressurized cylindrical shells with crack defects.
ISSN:1110-0168
DOI:10.1016/j.aej.2017.05.022