Enhancing Product Performance via a Modified Double-Diaphragm Forming (mDDF) Preform Method for Prepreg Compression Molding of Fiber-Reinforced Polymer Composites.
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| Title: | Enhancing Product Performance via a Modified Double-Diaphragm Forming (mDDF) Preform Method for Prepreg Compression Molding of Fiber-Reinforced Polymer Composites. |
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| Authors: | Kim, Shin1,2 (AUTHOR), Shin, Honchung2 (AUTHOR), Lee, Kilsung3 (AUTHOR), Ha, Sungkyu1 (AUTHOR) sungha@hanyang.ac.kr |
| Source: | Polymers (20734360). Jun2025, Vol. 17 Issue 11, p1489. 18p. |
| Subjects: | Thermosetting composites, Compression molding, Fiber-reinforced plastics, Fibrous composites, Composite structures |
| Abstract: | An enhanced process for shaping thermoset fiber-reinforced composites using Modified Double-Diaphragm Forming (mDDF) in Prepreg Compression Molding (PCM) is proposed to address limitations in conventional forming quality. To minimize surface defects, prepregs were pre-cut to reduce wrinkle formation and trimmed after preforming. Complex geometries were managed through draping analysis, which enabled identification and mitigation of wrinkle-prone regions. A challenging layup configuration (±45/0/90/0/90/0/±45) was selected, and temperature-dependent behavior of the prepreg—such as resin fluidity and wrinkle characteristics—was evaluated from room temperature to 80 °C. Material characterization included tensile, bias extension, bending, friction, and density tests. Forming simulations using AniForm Suite 3.0 incorporated fitted material parameters for predictive analysis. Experimental validation confirmed that the mDDF process significantly improved fiber alignment and eliminated wrinkle defects, especially in 16 previously identified critical zones. The final parts exhibited superior surface quality and dimensional accuracy compared to conventional PCM, highlighting the potential of mDDF for precision manufacturing of complex thermoset composite structures. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 185866795 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Enhancing Product Performance via a Modified Double-Diaphragm Forming (mDDF) Preform Method for Prepreg Compression Molding of Fiber-Reinforced Polymer Composites. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kim%2C+Shin%22">Kim, Shin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shin%2C+Honchung%22">Shin, Honchung</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Kilsung%22">Lee, Kilsung</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ha%2C+Sungkyu%22">Ha, Sungkyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sungha@hanyang.ac.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2025, Vol. 17 Issue 11, p1489. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Thermosetting+composites%22">Thermosetting composites</searchLink><br /><searchLink fieldCode="DE" term="%22Compression+molding%22">Compression molding</searchLink><br /><searchLink fieldCode="DE" term="%22Fiber-reinforced+plastics%22">Fiber-reinforced plastics</searchLink><br /><searchLink fieldCode="DE" term="%22Fibrous+composites%22">Fibrous composites</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+structures%22">Composite structures</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: An enhanced process for shaping thermoset fiber-reinforced composites using Modified Double-Diaphragm Forming (mDDF) in Prepreg Compression Molding (PCM) is proposed to address limitations in conventional forming quality. To minimize surface defects, prepregs were pre-cut to reduce wrinkle formation and trimmed after preforming. Complex geometries were managed through draping analysis, which enabled identification and mitigation of wrinkle-prone regions. A challenging layup configuration (±45/0/90/0/90/0/±45) was selected, and temperature-dependent behavior of the prepreg—such as resin fluidity and wrinkle characteristics—was evaluated from room temperature to 80 °C. Material characterization included tensile, bias extension, bending, friction, and density tests. Forming simulations using AniForm Suite 3.0 incorporated fitted material parameters for predictive analysis. Experimental validation confirmed that the mDDF process significantly improved fiber alignment and eliminated wrinkle defects, especially in 16 previously identified critical zones. The final parts exhibited superior surface quality and dimensional accuracy compared to conventional PCM, highlighting the potential of mDDF for precision manufacturing of complex thermoset composite structures. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/polym17111489 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 1489 Subjects: – SubjectFull: Thermosetting composites Type: general – SubjectFull: Compression molding Type: general – SubjectFull: Fiber-reinforced plastics Type: general – SubjectFull: Fibrous composites Type: general – SubjectFull: Composite structures Type: general Titles: – TitleFull: Enhancing Product Performance via a Modified Double-Diaphragm Forming (mDDF) Preform Method for Prepreg Compression Molding of Fiber-Reinforced Polymer Composites. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kim, Shin – PersonEntity: Name: NameFull: Shin, Honchung – PersonEntity: Name: NameFull: Lee, Kilsung – PersonEntity: Name: NameFull: Ha, Sungkyu IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 17 – Type: issue Value: 11 Titles: – TitleFull: Polymers (20734360) Type: main |
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