Open Access

ARTICLE

Impact Behaviour of Hybrid Jute/Epoxy Composites at Different Temperature Conditions

Somasundaram Karthiyaini¹, Mohan Sasikumar^2,*, Abraham Jebamalar³, P. A. Prasob²
1 School of Civil Engineering, Vellore Institute of Technology, Chennai, 600127, India
2 School of Mechanical Engineering, Vellore Institute of Technology, Chennai, 600127, India
3 Department of Civil Engineering, Velammal Engineering College, Chennai, 600066, India
* Corresponding Author: Mohan Sasikumar. Email:

Journal of Polymer Materials https://doi.org/10.32604/jpm.2024.053829

Received 10 May 2024; Accepted 10 July 2024; Published online 16 October 2024

Abstract

This manuscript presents the projectile impact behavior of hybrid jute/epoxy composite laminates using an instrumented air gun impact setup with the projectile moving in the vertical direction. An approach based on the stiffness change is used to predict the projectile impact response of hybrid jute epoxy-filled laminates impacted with a stainless-steel projectile. The experimental validation of the parameters like dynamic hardness (Hd) coefficient of restitution (COR), natural frequency, damping factor, and loss factor was used to analyze the impact behavior of jute/epoxy composites strengthened with fillers ZrO₂, ZnO, and TiO₂. The free vibration tests of the pre-and post-impacted filled hybrid composites give the natural frequency and damping characteristics at room temperature and subzero temperatures. The results show that the stiffness of the laminates increases with the increase of Hd and COR. The natural frequency of the composite laminates was lower for the laminates subjected to higher velocity impact compared to the laminates subjected to the lower impact velocity. The analysis of the damping factor and loss factor shows that damping was better at subzero temperatures compared to room temperature.

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Keywords

Damping; natural frequency; sub-zero temperature; impact loading; nanocomposite

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