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Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP

Previous research has found that lower temperature drilling is helpful to improve the hole quality of carbon fiber reinforced polymer (CFRP). However, the influence of the lower temperature drilling process on the mechanical behavior of composites is yet not fully understood. To examine the influenc...

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Detalles Bibliográficos
Autores principales: Wang, Hongxiao, Zhang, Xiaohui, Duan, Yugang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8915125/
https://www.ncbi.nlm.nih.gov/pubmed/35267856
http://dx.doi.org/10.3390/polym14051034
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author Wang, Hongxiao
Zhang, Xiaohui
Duan, Yugang
author_facet Wang, Hongxiao
Zhang, Xiaohui
Duan, Yugang
author_sort Wang, Hongxiao
collection PubMed
description Previous research has found that lower temperature drilling is helpful to improve the hole quality of carbon fiber reinforced polymer (CFRP). However, the influence of the lower temperature drilling process on the mechanical behavior of composites is yet not fully understood. To examine the influence of the lower temperature drilling process on the mechanical behavior of CFRP, the open hole CFRP specimens used for mechanical tests were obtained with three cases: drilling with −25 °C/uncoated carbide drills/(1000 rpm, 0.02 mm/r), 23 °C/coated carbide drills/(4000 rpm, 0.03 mm/r), and 23 °C/uncoated carbide drills/(1000 rpm, 0.02 mm/r), respectively; corresponding, three groups of open-hole specimens are obtained: specimens drilling at low-temperature with low damage, specimens drilling at room-temperature with low damage and specimens drilling at room-temperature with low damage; the mechanical behavior of the three groups specimens were obtained by static tensile, tensile–tensile fatigue cyclic tests and residual tensile strength test. The results have shown that the mechanical properties of specimens with a low-temperature drilling process is lower than those of the specimen with a normal drilling process due to the better drilling quality. The damage accumulation in specimens was increased with the damage degree of the original hole, the greater the damage degree, the worse the mechanical properties.
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spelling pubmed-89151252022-03-12 Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP Wang, Hongxiao Zhang, Xiaohui Duan, Yugang Polymers (Basel) Article Previous research has found that lower temperature drilling is helpful to improve the hole quality of carbon fiber reinforced polymer (CFRP). However, the influence of the lower temperature drilling process on the mechanical behavior of composites is yet not fully understood. To examine the influence of the lower temperature drilling process on the mechanical behavior of CFRP, the open hole CFRP specimens used for mechanical tests were obtained with three cases: drilling with −25 °C/uncoated carbide drills/(1000 rpm, 0.02 mm/r), 23 °C/coated carbide drills/(4000 rpm, 0.03 mm/r), and 23 °C/uncoated carbide drills/(1000 rpm, 0.02 mm/r), respectively; corresponding, three groups of open-hole specimens are obtained: specimens drilling at low-temperature with low damage, specimens drilling at room-temperature with low damage and specimens drilling at room-temperature with low damage; the mechanical behavior of the three groups specimens were obtained by static tensile, tensile–tensile fatigue cyclic tests and residual tensile strength test. The results have shown that the mechanical properties of specimens with a low-temperature drilling process is lower than those of the specimen with a normal drilling process due to the better drilling quality. The damage accumulation in specimens was increased with the damage degree of the original hole, the greater the damage degree, the worse the mechanical properties. MDPI 2022-03-04 /pmc/articles/PMC8915125/ /pubmed/35267856 http://dx.doi.org/10.3390/polym14051034 Text en © 2022 by the authors. 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
Wang, Hongxiao
Zhang, Xiaohui
Duan, Yugang
Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP
title Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP
title_full Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP
title_fullStr Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP
title_full_unstemmed Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP
title_short Investigating the Effect of Low-Temperature Drilling Process on the Mechanical Behavior of CFRP
title_sort investigating the effect of low-temperature drilling process on the mechanical behavior of cfrp
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8915125/
https://www.ncbi.nlm.nih.gov/pubmed/35267856
http://dx.doi.org/10.3390/polym14051034
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