Modal Analysis of Fibre Reinforced Composite Beams with a Transverse Crack Using ANSYS
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 8
Abstract
In many structures like high speed machineries, aircrafts and light weight structures composite beams and beam like structures are main constituent elements. Cracks induced in these structural elements cause serious failure and monitoring of these cracks is essential. The presence of these cracks influences the dynamic characteristics of the structural elements. Hence the changes in natural frequencies and mode shapes have been the subject of interest of many investigations. In the present work two Fiber- Reinforced Plastic (FRP) materials, Graphite Fibre Reinforced Polyamide and E-Glass Fibre Reinforced Polymer have been selected as beam materials for modal analysis using ANSYS 13.0. The analysis is carried out for these two beams in different ways. Initially the analysis is carried out for different orientation of fibres for two beams. Later the effect of dimensions is analyzed by varying one dimension of the beam at a time by keeping the other two constant. In the next step the analysis is performed for constant dimensions of each beam for same layer orientation and constant volume fraction of fibre by introducing transverse cracks of different depths at various positions along the length of the beam. The results obtained are analyzed.
Authors and Affiliations
Syed Ayesha Yasmeen , Anantha Abhijit P , Dr. D. Srinivasa Rao
Keywords
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