شماره ركورد كنفرانس :
143
عنوان مقاله :
improved analytical method for detection delamination location based on the natural frequency
عنوان به زبان ديگر :
improved analytical method for detection delamination location based on the natural frequency
پديدآورندگان :
Torabi K نويسنده Department of Solid Mechanics, Faculty of Mechanical Engineering,University of Kashan , Shariati Nia M. نويسنده Ph.D. Student, University of Kashan, Kashan 8731751167, Iran , Heidari-Rarani M. نويسنده Ph. D. Student
كليدواژه :
Free vibration , Natural frequency , Composite beams , Delamination
عنوان كنفرانس :
مجموعه مقالات بيست و دومين كنفرانس سالانه بين المللي مهندسي مكانيك
چكيده فارسي :
In previous studies, the frequencies of a delaminated composite beam were computed with assumption of open or close delamination during the vibration. According to this assumption, two modes, i.e., "free mode" and "constrained mode", are created in vibration of delaminated beam. In fact, a delamination may breathe (open and close) during the vibration of beam.
In this paper, an analytical model is proposed for calculation of a delaminated composite beam based on the both free and constrained modes. The obtained results are compared with various theoretical and experimental results available in the literature. Results show the effects of the location and size of delamination on natural frequencies of delaminated beams. The comparison of improved combined natural frequency with theoretical and experimental results shows better agreement with them.
شماره مدرك كنفرانس :
3817001
