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Dynamic collapse of critically stressed isotropic and composite cylinders

✍ Scribed by Tenek, Lazarus

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
360 KB
Volume
15
Category
Article
ISSN
1069-8299

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✦ Synopsis

The present study is concerned with the dynamic collapse of cantilever isotropic and composite cylinders. The cylinders are initially subjected to critical compressive loads at the free edge. A small increase in these critical loads is then dynamically applied in the form of a sinusoidal excitation using the ®rst natural frequency of the system. The results show that there exists a small time period whereby small dynamic excitations take place. Following this short time period, sudden large dynamic displacements occur which cause the collapse of the structure. This phenomenon takes place very near to the buckling load. An implicit unconditionally stable time scheme is applied to trace the dynamic behaviour of the structure. The eect of the excitation frequency on the response is also assessed.

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