Stress analysis of compound cylinders subjected to thermo-mechanical loads
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Axisymmetric pressure vessels have wide application in industrial engineering. They are often subjected to combined mechanical and thermal loads. In order to improve their pressure-carrying capacity, especially those with a cylindrical shape, some basic techniques are used such as increasing wall thickness, autofrettage and compound cylinders. This paper presents a basic model that can be used to study the effects of temperature and internal pressure on the stress distributions and displacement fields in compound cylinders. The analytical model is based on the thick walled cylinders theory. The results of the developed analytical approach are compared and validated to a finite element axisymmetric model.
KeywordsAnalytical and finite elements analysis Compound cylinders Stress analysis Thermomecanical behavior
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