:: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies
FEATURE PEER-REVIEWED ARTICLE
Vol.12(9) (2021)Special Issue on the Universiti Teknologi MARA (UiTM) R&D Showcase
Mohd Arif Mat Norman (Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, MALAYSIA, and Faculty of Engineering and Life Sciences, Universiti Selangor, 45600, Bestari Jaya, Selangor, MALAYSIA),
Jamaluddin Mahmud (Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, MALAYSIA).
Disciplinary: Mechanical Engineering (Composite Materials; Mechanical Vibration & Simulation).
Keywords: Free Vibrations; ANSYS; Numerical simulation; Laminated composite; Kevlar composition; Mode Shape; Hybrid composite laminate; Plate's natural frequency; Plate's deformation behaviour; Simulated natural frequency; Kevlar fiber; Fiber composition; Glass epoxy; Kevlar epoxy.
This paper investigates the effect of various lamination schemes, boundary conditions, and fiber compositions on natural frequencies of hybrid laminated composite plates. A 150mm x 75mm plate model made of kevlar/glass hybrid composite laminate under free vibration was developed using a Finite Element Software (ANSYS). Parameters analyzed involved various lamination schemes (cross-ply and unidirectional ply), boundary conditions Free-Free-Free-Free (FFFF), Clamp-Free-Free-Free (CFFF), and Clamp-Clamp-Clamp-Clamp (CCCC); and various compositions of Kevlar and glass fibers. Finite element simulations were performed for each case and the natural frequencies of hybrid laminated composite plates were determined. Mode shapes were also presented to exhibit the plates' deformation behaviour. The results show that for cross-ply laminates, increasing the Kevlar composition has increased the plates' natural frequencies. In terms of boundary conditions, it shows that CCCC produced the highest natural frequency (859.49Hz), while CFFF produced the lowest natural frequency (37.248 Hz). This study contributes significant knowledge to better understand the effect of various fiber compositions and boundary conditions on the natural frequencies of hybrid laminated composite plates.
Paper ID: 12A9A
Cite this article:
Norman, M. A. M, Mahmud, J. (2021). Investigation of Natural Frequencies on Kevlar/Glass Hybrid Laminated Composite Plates Using Finite Element Simulation. International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 12(9), 12A9A, 1-8. http://doi.org/10.14456/ITJEMAST.2021.169