Variation of Crack Propagation in Cantilever Beam under Force Vibration
Author(s):
J N Mahto , BIT Sindri, Dhanbad; S C Roy, BIT Sindri, Dhanbad; R S Prasad, RKGIT, Ghaziabad
Keywords:
Cantilever Beam, Crack Growth rate, Crack Location, Vibration, Accelerometer, Frequency
Abstract:
A mathematical model has been developed to observe effect of crack on vibrating cantilever beam under forced vibrating conditions. Six variables considered in the present investigation and were correlated through dimensional analysis. Three dimensionless groups were obtained and were found pure numbers determined by the specific values of the defined problem parameters. Anticipation of behaviour of vibrating cantilever beam was made simple by assuming crack growth rate of the order of 0.01 micrometer/hour. Using the calculated values of G and experimental values of V, B, F, D, the values of three-dimensional groups were calculated to know the characteristics behaviour of vibrating cantilever beam of Aluminium. Aluminium of 500mm x 50mm x 12mm were used to assure more prominent behaviour during experimental work. Readings were observed for the measurement of considered parameters of the beam at defined positions and different frequency. Experiments were conducted for the fixing length, 400mm of specimen. The value of crack growth rate and velocity for frequency 60 Hz, 80 Hz, 100 Hz and 120 Hz for various positions (i.e., 50 mm, 100 mm, 150 mm, 200 mm and 250 mm from the free end) of single accelerometer were compared and plotted to conclude.
Other Details:
| Manuscript Id | : | IJSTEV2I12126
|
| Published in | : | Volume : 2, Issue : 12
|
| Publication Date | : | 01/07/2016
|
| Page(s) | : | 250-254
|
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