Prognostic Assessment of Symmetric Perpendicular Edge Cracks on the Vibration Characteristics of Orthotropic Cantilever Composite Plates
issued: 2026
description: A semi-empirical relation was also developed to predict frequency degradation based on crack geometry and position, achieving excellent agreement with numerical data (R^2>0.99). The findings provide a concise framework for vibration-based damage detection and structural health monitoring (SHM) of orthotropic composite structures. Unlike previous works that primarily examined single-edge or isotropic configurations, this study uniquely quantifies the coupled influence of symmetric double-edge cracks in orthotropic cantilever plates, thereby extending the understanding of multi-crack interaction effects in composite dynamics.
creator: Othman, Tahseen Taha
publisher: Zielona Góra: Uniwersytet Zielonogórski
subject: orthotropic composite
contributor: Jurczak, Paweł - red.
language: eng
subject: cantilever plates
format: application/pdf
rights: Biblioteka Uniwersytetu Zielonogórskiego
creator: Hasan, Iesam J.
subject: modal analysis
date: 2026
type: artykuł
subject: natural frequencies
description: This study investigates the free vibration characteristics of orthotropic cantilever composite plate containing symmetric double edge cracks. A detailed finite element analysis (FEA) was conducted in ANSYS APDL to investigate the influence of crack length (a/W=0 0.04) and crack location (x_c/L=0-0.75) on the first six natural frequencies. The results show a consistent frequency reduction with increasing crack length and proximity to the clamped edge, while higher-order modes display greater sensitivity due to localized strain energy near the cracks.
source: IJAME, volume 31, number 2 (2026)
rights: CC 4.0
subject: edge cracks