Abstract
In this paper, the linear free flexural vibration of cracked functionally graded material plates is studied using the extended finite element method. A 4-noded quadrilateral plate bending element based on field and edge consistency requirement with 20 degrees of freedom per element is used for this study. The natural frequencies and mode shapes of simply supported and clamped square and rectangular plates are computed as a function of gradient index, crack length, crack orientation and crack location. The effect of thickness and influence of multiple cracks is also studied.
Original language | English |
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Pages (from-to) | 3082-3092 |
Number of pages | 11 |
Journal | Composite Structures |
Volume | 93 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2011 Oct |
Bibliographical note
Funding Information:S Natarajan acknowledges the financial support of (1) the Overseas Research Students Awards Scheme; (2) the Faculty of Engineering, University of Glasgow, for period January 2008–September 2009 and of (3) the School of Engineering (Cardiff University) for the period September 2009 onwards.
Funding Information:
S Bordas and P Kerfriden would like to acknowledge the financial support of the Royal Academy of Engineering and of the Leverhulme Trust for Bordas’ Senior Research Fellowship entitled “Towards the next generation surgical simulators” as well as partial financial support of the UK Engineering and Physical Science Research Council (EPSRC) under grants EP/G069352/1 Advanced discretisation strategies for “atomistic” nano CMOS simulation and EP/G042705/1 Increased Reliability for Industrially Relevant Automatic Crack Growth Simulation with the eXtended Finite Element Method. T Rabczuk would like to thank the DFG.
Keywords
- Extended finite element method
- Mindlin plate theory
- Partition of unity methods
- Vibration
ASJC Scopus subject areas
- Ceramics and Composites
- Civil and Structural Engineering