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A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design
Aerospace-grade composite parts can be manufactured using Vacuum Bag Only prepregs through an accurate process design. Quality in the desired part can be realized by following process modeling, process optimization, and validation, which strongly depend on a primary and systematic material character...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8777889/ https://www.ncbi.nlm.nih.gov/pubmed/35057170 http://dx.doi.org/10.3390/ma15020451 |
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author | Arikan, Muhammed H. Eroglu, Fatih Eskizeybek, Volkan Sukur, Emine Feyza Yildiz, Mehmet Sas, Hatice S. |
author_facet | Arikan, Muhammed H. Eroglu, Fatih Eskizeybek, Volkan Sukur, Emine Feyza Yildiz, Mehmet Sas, Hatice S. |
author_sort | Arikan, Muhammed H. |
collection | PubMed |
description | Aerospace-grade composite parts can be manufactured using Vacuum Bag Only prepregs through an accurate process design. Quality in the desired part can be realized by following process modeling, process optimization, and validation, which strongly depend on a primary and systematic material characterization methodology of the prepreg system and material constitutive behavior. The present study introduces a systematic characterization approach of a Vacuum Bag Only prepreg by covering the relevant material properties in an integrated manner with the process mechanisms of fluid flow, consolidation, and heat transfer. The characterization recipe is practiced under the categories of (i) resin system, (ii) fiber architecture, and (iii) thermal behavior. First, empirical models are successively developed for the cure-kinetics, glass transition temperature, and viscosity for the resin system. Then, the fiber architecture of the uncured prepreg system is identified with X-ray tomography to obtain the air permeability. Finally, the thermal characteristics of the prepreg and its constituents are experimentally characterized by adopting a novel specimen preparation technique for the specific heat capacity and thermal conductivity. Thus, this systematic approach is designed to provide the material data to process modeling with the motivation of a robust and integrated Vacuum Bag Only process design. |
format | Online Article Text |
id | pubmed-8777889 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87778892022-01-22 A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design Arikan, Muhammed H. Eroglu, Fatih Eskizeybek, Volkan Sukur, Emine Feyza Yildiz, Mehmet Sas, Hatice S. Materials (Basel) Article Aerospace-grade composite parts can be manufactured using Vacuum Bag Only prepregs through an accurate process design. Quality in the desired part can be realized by following process modeling, process optimization, and validation, which strongly depend on a primary and systematic material characterization methodology of the prepreg system and material constitutive behavior. The present study introduces a systematic characterization approach of a Vacuum Bag Only prepreg by covering the relevant material properties in an integrated manner with the process mechanisms of fluid flow, consolidation, and heat transfer. The characterization recipe is practiced under the categories of (i) resin system, (ii) fiber architecture, and (iii) thermal behavior. First, empirical models are successively developed for the cure-kinetics, glass transition temperature, and viscosity for the resin system. Then, the fiber architecture of the uncured prepreg system is identified with X-ray tomography to obtain the air permeability. Finally, the thermal characteristics of the prepreg and its constituents are experimentally characterized by adopting a novel specimen preparation technique for the specific heat capacity and thermal conductivity. Thus, this systematic approach is designed to provide the material data to process modeling with the motivation of a robust and integrated Vacuum Bag Only process design. MDPI 2022-01-07 /pmc/articles/PMC8777889/ /pubmed/35057170 http://dx.doi.org/10.3390/ma15020451 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 Arikan, Muhammed H. Eroglu, Fatih Eskizeybek, Volkan Sukur, Emine Feyza Yildiz, Mehmet Sas, Hatice S. A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design |
title | A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design |
title_full | A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design |
title_fullStr | A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design |
title_full_unstemmed | A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design |
title_short | A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design |
title_sort | systematic characterization approach for vacuum bag only prepregs towards an accurate process design |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8777889/ https://www.ncbi.nlm.nih.gov/pubmed/35057170 http://dx.doi.org/10.3390/ma15020451 |
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