Influence of edge crack on frequencies of thin plate in bending
Abstract
This paper investigates the influence of crack location and crack length on changes in natural frequencies of bending thin plate. To perform this analysis, a computing program called CRACK-PLATE, using the finite element method based on the Ressner-Mindlin' theory of plate is developed. In order to achieve a high accuracy, an isoparametric element of Barsoum is combined with an 8-node quadrilateral isoparametric element. The numerical results show that the natural frequencies are very sensitive to the crack presence in the bending thin plate. This study is a basis for crack identification based on natural frequencies of plates.
Keywords
Full Text:
PDFDOI: https://doi.org/10.15625/0866-7136/27/2/5720 Display counter: Abstract : 202 views. PDF : 146 views.
Refbacks
- There are currently no refbacks.
Copyright (c) 2005 Vietnam Academy of Science and Technology
Editorial Office of Vietnam Journal of Mechanics 3rd Floor, A16 Building, 18B Hoang Quoc Viet Street, Cau Giay District, Hanoi, VietnamTel: (+84) 24 3791 7103 Email: vjmech@vjs.ac.vn |