Dynamic Analysis of MRE Sandwich Beam with Woven Jute/Epoxy Skins: An Experimental and Numerical Approach 


Vol. 27,  No. 2, pp. 871-884, Feb.  2026
10.1007/s12221-025-01241-3


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  Abstract

An environmentally sustainable composite with good structural characteristics must be an alternative to the synthetic composite. Composite structures that are supportive to active/semi-active vibration control systems get usage in various aerospace, military, and automotive applications. This work attempts to develop an environmentally friendly composite and investigate its fundamental feasibility to consider as a semi-active vibration control system. In this work, the experimental and numerical investigations on the natural frequencies of a sandwich beam made of Woven Jute/Epoxy (WJE) skin and a Magneto-Rheological Elastomer (MRE) core are carried out at different magnetic fields under various boundary conditions. The experimentally determined natural frequencies are used to validate the natural frequencies obtained through the developed Finite Element (FE) model. Further, the validated FE model is used to investigate the variations of natural frequencies of the sandwich beam by considering various parameters such as the concentration of Carbonyl Iron Particle (CIP), magnetic field intensity, number of plies, ply orientation, and ply stacking sequence of skin and core-skin thickness ratios under the various boundary conditions. The study reveals that the presence of 50% CIP concentrated MRE sandwich beam exhibits higher natural frequencies than those of others. The increase in MRE core thickness results in better damping in spite of the increase in natural frequencies at fundamental modes. In addition, it is concluded that the magnetic permeability of WJE laminated composites does not play a significant role like the synthetic fiber composites. Even the skin’s ply sequence, ply orientation, and the volume fraction of fiber influence the natural frequencies through variation in its structural stiffness, but the fiber’s magnetic permeability does not contribute to it. This work makes the natural fiber-reinforced polymer composite structures an alternative to synthetic composite structures and allows them to evolve into an active or semi-active control system in the future.

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  Cite this article

[IEEE Style]

M. Jaysankar, V. Gopalan, V. S. Veerappa, E. S. P., A. Venugopal, "Dynamic Analysis of MRE Sandwich Beam with Woven Jute/Epoxy Skins: An Experimental and Numerical Approach," Fibers and Polymers, vol. 27, no. 2, pp. 871-884, 2026. DOI: 10.1007/s12221-025-01241-3.

[ACM Style]

Mugundhan Jaysankar, Venkatachalam Gopalan, Vimalanand Suthenthira Veerappa, Edwin Sudhagar P., and Anandhan Venugopal. 2026. Dynamic Analysis of MRE Sandwich Beam with Woven Jute/Epoxy Skins: An Experimental and Numerical Approach. Fibers and Polymers, 27, 2, (2026), 871-884. DOI: 10.1007/s12221-025-01241-3.

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