Modal Analysis Of Carbon/Epoxy Plate By Varying Fibre Orientation
Main Article Content
Abstract
Composite laminated plates are widely used in the field of aerospace and navy for some advantages such as higher ratio of stiffness and strength to weight. A variety of laminated plate theories have been developed and applied to engineering practice. Mode shapes do describe the configurations into which a structure will naturally get displaced. Typically, lateral displacement patterns are of primary interest. Based on the load carrying capacity, Structures cannot be regarded safe but should be safe considering the structural dynamic aspects as well. Modal analysis is used to find the offending frequencies and eliminate them by varying the stiffness or mass to ensure the structure is safe from the natural frequency problems.In this paper modal analysis of a SS rectangular plate made of carbon epoxy is carried out using FEA and the results are compared with analytical solution.The fibre angle is changed systematically to see the effect of fibre orientation on natural frequencies and the corresponding mode shapes. The first six natural frequencies and mode shapes of composite laminated plate are obtained. Presented results showed that the properly chosen fibre angle contribute to better dynamic performance, which provides greater flexibility in designing composite structures to suit the engineering need.
Downloads
Metrics
Article Details
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
