Autor:

Hasan, Iesam J. ; Othman, Tahseen Taha

Współtwórca:

Jurczak, Paweł - red.

Tytuł:

Prognostic Assessment of Symmetric Perpendicular Edge Cracks on the Vibration Characteristics of Orthotropic Cantilever Composite Plates

Tytuł publikacji grupowej:

IJAME, volume 31 (2026)

Temat i słowa kluczowe:

orthotropic composite ; edge cracks ; cantilever plates ; modal analysis ; natural frequencies

Abstract:

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. ; 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.

Wydawca:

Zielona Góra: Uniwersytet Zielonogórski

Data wydania:

2026

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

kliknij tutaj, żeby przejść

Strony:

31-49

Źródło:

IJAME, volume 31, number 2 (2026)

Jezyk:

eng

Licencja:

CC 4.0

Licencja CC BY-NC-ND 4.0:

kliknij tutaj, żeby przejść

Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego