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Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter

Real thin-walled composite structures such as aircraft or automotive structures are exposed to the development of various types of damage during operation. The effect of circular hole size on the strength of a thin-walled plate made of carbon fibre-reinforced polymer (CFRP) was investigated in this...

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Autor principal: Wysmulski, Pawel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342829/
https://www.ncbi.nlm.nih.gov/pubmed/37445027
http://dx.doi.org/10.3390/ma16134714
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author Wysmulski, Pawel
author_facet Wysmulski, Pawel
author_sort Wysmulski, Pawel
collection PubMed
description Real thin-walled composite structures such as aircraft or automotive structures are exposed to the development of various types of damage during operation. The effect of circular hole size on the strength of a thin-walled plate made of carbon fibre-reinforced polymer (CFRP) was investigated in this study. The test object was subjected to tensile testing to investigate the strength and cracking mechanism of the composite structure with variable diameter of the central hole. The study was performed using two independent test methods: experimental and numerical. With increasing diameter of the central hole, significant weakening of the composite plate was observed. The study showed qualitative and quantitative agreement between the experimental and numerical results. The results confirmed the agreement of the proposed FEM model with the experimental test. The novelty of this study is the use of the popular XFEM technique to describe the influence of the hole size on the cracking and failure of the composite structure. In addition, the study proposes a new method for determining the experimental and numerical damage and failure loads of a composite plate under tension.
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spelling pubmed-103428292023-07-14 Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter Wysmulski, Pawel Materials (Basel) Article Real thin-walled composite structures such as aircraft or automotive structures are exposed to the development of various types of damage during operation. The effect of circular hole size on the strength of a thin-walled plate made of carbon fibre-reinforced polymer (CFRP) was investigated in this study. The test object was subjected to tensile testing to investigate the strength and cracking mechanism of the composite structure with variable diameter of the central hole. The study was performed using two independent test methods: experimental and numerical. With increasing diameter of the central hole, significant weakening of the composite plate was observed. The study showed qualitative and quantitative agreement between the experimental and numerical results. The results confirmed the agreement of the proposed FEM model with the experimental test. The novelty of this study is the use of the popular XFEM technique to describe the influence of the hole size on the cracking and failure of the composite structure. In addition, the study proposes a new method for determining the experimental and numerical damage and failure loads of a composite plate under tension. MDPI 2023-06-29 /pmc/articles/PMC10342829/ /pubmed/37445027 http://dx.doi.org/10.3390/ma16134714 Text en © 2023 by the author. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wysmulski, Pawel
Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter
title Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter
title_full Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter
title_fullStr Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter
title_full_unstemmed Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter
title_short Failure Mechanism of Tensile CFRP Composite Plates with Variable Hole Diameter
title_sort failure mechanism of tensile cfrp composite plates with variable hole diameter
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10342829/
https://www.ncbi.nlm.nih.gov/pubmed/37445027
http://dx.doi.org/10.3390/ma16134714
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