کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
280468 | 1430370 | 2007 | 15 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Crack detection in elastic beams by static measurements Crack detection in elastic beams by static measurements](/preview/png/280468.png)
This paper deals with the identification of a single crack in a beam based on the knowledge of the damage-induced variations in the static deflection of the beam. The crack is simulated by an equivalent linear spring connecting the two adjacent segments of the beam. Sufficient conditions on static measurements which allow for the unique identification of the crack are presented and discussed. The inverse analysis provides exact closed-form expressions of position and severity of the crack as functions of deflection measurements for different boundary conditions. The theoretical results are confirmed by a comparison with static measurements on steel beams with a crack. Extension of the presented analysis to multiple cracks is briefly discussed.
Journal: International Journal of Solids and Structures - Volume 44, Issue 16, 1 August 2007, Pages 5301–5315