2010•EMESEG'10 Proceedings of the 3rd WSEAS international conference on Engineering mechanics, structures, engineering geologyRequires access

Vibrations of stepped cylindrical shells with cracks

Jaan Lellep, Larissa Roots

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Abstract

Assuming that the deformations are axisymmetric the vibrations of stepped cylindrical shells are studied. Simple tool for the vibration analysis of shells accounting for the influence of cracks is presented. The changes of flexibility of the shell near cracks are prescribed by means of the compliance coupled with the stress intensity factor defined in the linear elastic fracture mechanics. The shell wall has an arbitrary number of steps and circular cracks of constant depth.

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Available abstract

Key concepts: Shell (structure), Rotational symmetry, Vibration, Stress intensity factor, Mechanics, Structural engineering, Materials science, Fracture (geology)