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Novel Repair Procedure for CFRP Components Instead of EOL

Today, numerous carbon fiber (CF) reinforced plastic (CFRP) components are in continuous usage under harsh environmental conditions. New components often replace damaged structural parts in safety-critical applications. In addition to this, there is also no effective repair method to initially resto...

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Autores principales: Rabe, David, Böhnke, Philippa Ruth Christine, Kruppke, Iris, Häntzsche, Eric, Cherif, Chokri
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8196683/
https://www.ncbi.nlm.nih.gov/pubmed/34063968
http://dx.doi.org/10.3390/ma14112711
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author Rabe, David
Böhnke, Philippa Ruth Christine
Kruppke, Iris
Häntzsche, Eric
Cherif, Chokri
author_facet Rabe, David
Böhnke, Philippa Ruth Christine
Kruppke, Iris
Häntzsche, Eric
Cherif, Chokri
author_sort Rabe, David
collection PubMed
description Today, numerous carbon fiber (CF) reinforced plastic (CFRP) components are in continuous usage under harsh environmental conditions. New components often replace damaged structural parts in safety-critical applications. In addition to this, there is also no effective repair method to initially restore the mechanics of these structures using dry fiber material. The high costs of CFRP components are not in proportion to their lifetime. The research project IGF-19946 BR “CFRP-Repair” addresses this specific challenge. By using an oxide semiconductor that is activated by ultraviolet (UV) irradiation, the thermoset matrix can be depolymerized and thus locally removed from the damaged CFRP component. Afterward, the harmed fibers can be physically removed from the laminate in this certain area. A load-adjusted tailored fiber reinforcement patch is subsequently applied and consolidated by local thermoset re-infiltrating. Using this procedure, the structure can be locally repaired with new CF. As a result, repaired CFRP structures can be obtained with reduced mechanics and an approximately original surface. This article gives an insight into the developed repair procedure of CFRP components in an innovative and more efficient way than the state-of-the-art.
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spelling pubmed-81966832021-06-13 Novel Repair Procedure for CFRP Components Instead of EOL Rabe, David Böhnke, Philippa Ruth Christine Kruppke, Iris Häntzsche, Eric Cherif, Chokri Materials (Basel) Article Today, numerous carbon fiber (CF) reinforced plastic (CFRP) components are in continuous usage under harsh environmental conditions. New components often replace damaged structural parts in safety-critical applications. In addition to this, there is also no effective repair method to initially restore the mechanics of these structures using dry fiber material. The high costs of CFRP components are not in proportion to their lifetime. The research project IGF-19946 BR “CFRP-Repair” addresses this specific challenge. By using an oxide semiconductor that is activated by ultraviolet (UV) irradiation, the thermoset matrix can be depolymerized and thus locally removed from the damaged CFRP component. Afterward, the harmed fibers can be physically removed from the laminate in this certain area. A load-adjusted tailored fiber reinforcement patch is subsequently applied and consolidated by local thermoset re-infiltrating. Using this procedure, the structure can be locally repaired with new CF. As a result, repaired CFRP structures can be obtained with reduced mechanics and an approximately original surface. This article gives an insight into the developed repair procedure of CFRP components in an innovative and more efficient way than the state-of-the-art. MDPI 2021-05-21 /pmc/articles/PMC8196683/ /pubmed/34063968 http://dx.doi.org/10.3390/ma14112711 Text en © 2021 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
Rabe, David
Böhnke, Philippa Ruth Christine
Kruppke, Iris
Häntzsche, Eric
Cherif, Chokri
Novel Repair Procedure for CFRP Components Instead of EOL
title Novel Repair Procedure for CFRP Components Instead of EOL
title_full Novel Repair Procedure for CFRP Components Instead of EOL
title_fullStr Novel Repair Procedure for CFRP Components Instead of EOL
title_full_unstemmed Novel Repair Procedure for CFRP Components Instead of EOL
title_short Novel Repair Procedure for CFRP Components Instead of EOL
title_sort novel repair procedure for cfrp components instead of eol
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8196683/
https://www.ncbi.nlm.nih.gov/pubmed/34063968
http://dx.doi.org/10.3390/ma14112711
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