Study of vibrational characteristics of carbon fiber composite sandwich plates.

Siddique, Md. Abu Bakar; Sakib, Tanvir

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dc.contributor.author	Siddique, Md. Abu Bakar
dc.contributor.author	Sakib, Tanvir
dc.date.accessioned	2021-10-07T06:17:55Z
dc.date.available	2021-10-07T06:17:55Z
dc.date.issued	2017-11-15
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dc.identifier.uri	http://hdl.handle.net/123456789/1128
dc.description	Supervised by Dr. Md. Zahid Hossain, Department of Mechanical and Chemical Engineering (MCE), Islamic University of Technology (IUT), Board Bazar, Gazipur-1704, Bangladesh.	en_US
dc.description.abstract	The vibration and damping performances of hybrid carbon fiber composite pyramidal truss sandwich panels with viscoelastic layers embedded in the face sheets were investigated in this paper. Hybrid carbon fiber composite pyramidal truss sandwich panels containing different thickness of viscoelastic layers were manufactured using a hot press molding method. Analytical models based on modal strain energy approach were developed using ABAQUS software to estimate the damping property of the hybrid sandwich structures. A set of modal tests were carried out to investigate the vibration and damping characteristics of such hybrid sandwich panels with or without viscoelastic layers. The damping loss factors of composite slender beams with different fiber orientations were tested to determine the constitutive damping properties of parent materials for such hybrid sandwich panels. The numerical simulation results showed good agreement with the experimental tests. The damping loss factors of hybrid sandwich panels increased distinctly compared with previous sandwich panels due to the viscoelastic layer embedded in the face sheets. Lightweight sandwich panel structure with stiff and strong face and strong composite structure have significant importance in aerospace industry and energy absorption applications. More or less these plates and their structures face vibration in various implementations. Under different research carbon fiber has been proven an important material to build the composite structure. In this dissertation we are investigating the vibrational characteristics of sandwich plates with reciprocal double pyramidal truss lattice structure made of carbon fiber composites. The analytical model was developed in SolidWorks software and transferred to ANSYS for modal analysis. At last different other composite structures have been shown with further prospect and for comparison of less material v strength ratio. The effective vibrational characteristics of sandwich plates with truss cores of pyramidal truss lattice structure, reciprocal double pyramidal truss lattice structure and rectangular honeycomb structure made of carbon fiber composite.  Analytical models  Mode shapes and natural frequencies  Modal and a frequency versus mode curve  Modal analysis was also done in both structures at different fiber orientations and a natural frequency versus fiber orientation curve  Frequency response analysis  Harmonic and an amplitude (in decibel) versus frequency curve  Results	en_US
dc.language.iso	en	en_US
dc.publisher	Department of Mechanical and Production Engineering (MPE),Islamic University of Technology(IUT), Board Bazar, Gazipur, Bangladesh	en_US
dc.title	Study of vibrational characteristics of carbon fiber composite sandwich plates.	en_US
dc.type	Thesis	en_US