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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/2/451 |
| _version_ | 1797492501194473472 |
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| author | Muhammed H. Arikan Fatih Eroglu Volkan Eskizeybek Emine Feyza Sukur Mehmet Yildiz Hatice S. Sas |
| author_facet | Muhammed H. Arikan Fatih Eroglu Volkan Eskizeybek Emine Feyza Sukur Mehmet Yildiz Hatice S. Sas |
| author_sort | Muhammed H. Arikan |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T01:04:33Z |
| format | Article |
| id | doaj.art-79f2ef2b2dec4dac9a90816ff11e03f6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T01:04:33Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-79f2ef2b2dec4dac9a90816ff11e03f62023-11-23T14:29:22ZengMDPI AGMaterials1996-19442022-01-0115245110.3390/ma15020451A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process DesignMuhammed H. Arikan0Fatih Eroglu1Volkan Eskizeybek2Emine Feyza Sukur3Mehmet Yildiz4Hatice S. Sas5Integrated Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla, Istanbul 34956, TurkeyIntegrated Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla, Istanbul 34956, TurkeyDepartment of Materials Science and Engineering, Canakkale Onsekiz Mart University, Canakkale 17100, TurkeyIntegrated Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla, Istanbul 34956, TurkeyIntegrated Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla, Istanbul 34956, TurkeyIntegrated Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla, Istanbul 34956, TurkeyAerospace-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.https://www.mdpi.com/1996-1944/15/2/451prepregresin rheologythermal propertiesprocess modeling |
| spellingShingle | Muhammed H. Arikan Fatih Eroglu Volkan Eskizeybek Emine Feyza Sukur Mehmet Yildiz Hatice S. Sas A Systematic Characterization Approach for Vacuum Bag Only Prepregs towards an Accurate Process Design Materials prepreg resin rheology thermal properties process modeling |
| 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 | prepreg resin rheology thermal properties process modeling |
| url | https://www.mdpi.com/1996-1944/15/2/451 |
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