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  Scopus ID: 21100926589

Experimental Stress and Vibration Analysis of Hybrid Composite Laminated Cracked Beam

Ravi Kant Kumar and Kallol Khan

Abstract

In this paper, an analysis of the fundamental mode of free vibration for hybrid laminated cracked composite beams was done. Hand layup is used to make the beams. Glass and carbon are used as fibers, and epoxy and resin are used as matrix materials. The properties of a material are found on the Universal Testing Machine. The experimental stress and modal analysis of carbon and glass fiber reinforced cracked hybrid laminated beam has been carried out for fixed-fixed and fixed-free beams. The [0°-90°-0°-90°] lamination scheme and [C-G-G-C], [G-C-C-G] composition have been used. The Lab VIEW software was used to perform the experiment. The strain gauges are used to perform stress analysis, and an accelerometer is used for modal analysis. The natural frequencies for all the cases have been determined. A finite element modal has been developed using ANSYS. The experimental data are compared to the ANSYS-obtained numerical results. For the compositions [C-G-G-C] and [G-C-C-G], the natural frequency drops as the number of cracks rises. Additionally, it has been found that both the laminated compositions [C-G-G-C] and [G-C-C-G] experience an increase in stress, strain, and deflection when the number of cracks increases. Maximum stress occurs at the fixed end if there is no crack; if a crack is present, it is located close to the fixed end, and as the number of cracks rises, the site of maximum stress shifts.

Published on: May 05, 2023
doi: 10.17756/nwj.2023-s1-099
Citation: Kumar RK and Khan K. 2023. Experimental Stress and Vibration Analysis of Hybrid Composite Laminated Cracked Beam. NanoWorld J 9(S1): S513-S517.

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