Experimental Study of Failure Analysis in Notched and Repaired Fiberglass Epoxy Composite

• Autorzy: Hassoon Omar Hashim , Enzi Abass , Kashkool Lujain H.

Identyfikatory

DOI

10.12913/22998624/145309

• Języki publikacji: EN

Abstrakty

EN

The composite materials are remarkably increasing in many industry sectors like aircraft, automobiles, oil pipes, and marine boats. This attention comes from their excellent properties, such as lightweight and high strength. However, these materials expose many damages like fiber-matrix debonding, matrix crack, and delamination. The composite structures risked damage through the service life and therefore need to repair to achieve their function with a good performance. This paper focuses on the analysis during the tensile test of samples of fiberglass epoxy composite materials exposed to damage before and after repair. Experimental and numerical investigations are performed to determine and identify mechanical properties and failure analysis between repaired and unrepaired composite plates. Five samples are selected: without hole, 4 mm hole-repaired, stepped hole from 4 to 8 mm, and stepped hole from 4 to 8 mm-repaired. Simulation models are created using the finite element (FE) method to compare them with Abaqus's practical experiments to predict damage during the tensile test. To simulate damage models, interlaminar and intralaminar damage, were used to study initiation and propagation of the samples failure. Results show that the experimental and numerical investigations of the repaired samples have a significant effect on the mechanical properties and failure behavior of the holed and stepped plates compared with unrepaired samples. Also, maximum stress and strain are concentrated around and on both sides of the hole, while the most significant damage occurs around the hole and the axial direction.

Słowa kluczowe

EN

damage analysis; GFRP; repaired GFRP; finite element analysis; FEA

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2022
• Tom: Vol. 16, no 2
• Strony: 99--108
• Opis fizyczny: Bibliogr. 11 poz., tab., fig.

Twórcy

autor

Hassoon Omar Hashim

• Production Engineering and Metallurgy Department, University of Technology, Baghdad, Iraq

autor

Enzi Abass

• Production Engineering and Metallurgy Department, University of Technology, Baghdad, Iraq

• https://orcid.org/0000-0001-8107-0307

autor

Kashkool Lujain H.

• Production Engineering and Metallurgy Department, University of Technology, Baghdad, Iraq

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).