A Review Paper on Detection of Cracks Present In Composite Cantilever Beam by Using Finite Element Analysis and Experimental Vibration Analysis Technique

Author(s)	Prof. Satish Prabhakar Kadam
Country	India
Abstract	This paper presents a review of various vibration-based techniques employed by researchers for detecting cracks in composite structures. In fields such as aeronautical, mechanical, and civil engineering, structural components are prone to damage and degradation over time due to operational stresses. Therefore, early and accurate detection of such damage is essential to ensure structural integrity and safety. Over the past few decades, there has been growing interest in reliable and efficient methods for structural damage detection. The presence of a crack introduces local flexibility in a structural member, which alters its vibration characteristics—specifically by reducing stiffness and increasing damping. These physical changes lead to a decrease in natural frequencies and changes in mode shapes. By analyzing these vibration parameters, it is possible to estimate both the location and depth of cracks. This paper particularly focuses on how parameters such as crack depth and location influence the natural frequency of a composite beam. Findings indicate that natural frequency decreases more significantly when the crack is located near the fixed end and when the crack depth is greater.
Keywords	Vibration based techniques, Natural frequency, Crack depth, Crack location, Mode Shapes.
Field	Engineering
Published In	Volume 16, Issue 4, October-December 2025
Published On	2025-10-11

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