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AN EXPERIMENTAL INVESTIGATION INTO THE TOPOLOGICAL STABILITY OF A CRACKED CANTILEVER BEAM

✍ Scribed by J.A. Brandon; C. Sudraud

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 293 KB
Volume: 211
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1997.1379

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✦ Synopsis

In the study reported here, a vibrating polymeric cantilever beam was found to exhibit two distinct non-linear behaviour patterns. It is demonstrated that switching between these behaviour modes can be initiated by varying modal participation in a number of different ways: by changing the position of the exciter or the crack; by changing the amplitude of excitation; by changing the crack-depth ratio; or by changing the frequency of excitation. The indicator of transition between behaviour modes was the onset of period doubling. Clearly defined regions in the parameter space were identified.

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