ICAR Research Data Repository for Knowledge Management
Vibration based detection of location and size of edge crack in beams on multiple supports
DSpace at IIT Bombay
View Archive Info| Field | Value | |
| Title |
Vibration based detection of location and size of edge crack in beams on multiple supports
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| Creator |
NANDWANA, BP
MAITI, SK |
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| Subject |
nondestructive detection of crack size
vibration based detection of crack size vibration of cracked beams beams on multiple supports |
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| Description |
In this paper a method has been presented to address an inverse eigenvalue problem to facilitate detection of location and size of an edge crack in an orientation normal to length in a beam on multiple supports from the measurement of natural frequencies. The crack is modelled by a rotational spring and the flexural vibration problem is formulated. This gives rise to a relationship involving the spring stiffness, location of crack and natural frequency. The applicability of the method is demonstrated by numerical experiments with a three span beam with end supports and a crack located either in the first or second span. The method is accurate up to 5% for a crack size more than 10% section depth and located away from the supports. The method does not require much iteration.
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| Publisher |
PERGAMON PRESS LTD
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| Date |
2011-10-27T12:33:29Z
2011-12-15T09:12:39Z 2011-10-27T12:33:29Z 2011-12-15T09:12:39Z 1997 |
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| Type |
Proceedings Paper
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| Identifier |
ADVANCES IN FRACTURE RESEARCH, VOLS 1-6,2603-2610
0-08-042820-7 http://dspace.library.iitb.ac.in/xmlui/handle/10054/16299 http://hdl.handle.net/100/2801 |
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| Source |
9th International Conference in Fracture (ICF9),SYDNEY, AUSTRALIA,APR 01-05, 1997
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| Language |
English
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