Work

Free Vibration of Composite Rectangular Plates with Internal Crack

Year: 2024

Type: article

Abstract: In this work, rectangular sheets of composite materials consisting of epoxy with a single layer of fiberglass were studied with the internal crack at angles (0°, 90°) with the x-axis in the presence of nanomaterial TiO2 in proportions (1 wt%, 2 wt%, and 3 wt%), the study was experimental and numerical using the ANSYS. The sample mold was made from plastic using a CNC machine. One case was studied in both the experimental and numerical parts, which is clamped-clamped-free-free (CC-FF). After conducting the test, it was found that the crack negatively affects the rectangular composite plate, as it reduces the value of the natural frequency and increases the value of damping. However, in the case of adding the nanomaterial, it was found that the natural frequency increases with the increase in the percentage of nanomaterials, and the maximum value of the natural frequency was at 3% because it works to increase hardness rectangular plate stiffens and reduces damping. The error rate between the experimental and numerical parts did not exceed (9.717%).

Source: Defect and diffusion forum/Diffusion and defect data, solid state data. Part A, Defect and diffusion forum

DOI: 10.4028/p-tj9doi

Author: Mundher A. Dookhi

Institution: Imam Ja’afar Al-Sadiq University

Language: English

Topic: Composite Structure Analysis and Optimization

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4402650356

FWCI:

Cites: 8

Cited by:

Related to: 10