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Parametric Study on Scarf Patch Repairs for Shipboard Composite Structures.

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Title: Parametric Study on Scarf Patch Repairs for Shipboard Composite Structures.
Authors: Liang, Panpan1 (AUTHOR), Wang, Guanbo1,2 (AUTHOR), Guo, Qingchang2,3 (AUTHOR), Li, Maojun1 (AUTHOR), Gong, Pan2,3 (AUTHOR)
Source: Materials (1996-1944). Apr2026, Vol. 19 Issue 8, p1644. 17p.
Subjects: Finite element method, Composite structures, Mechanical behavior of materials, Stress concentration, Carbon fiber-reinforced plastics
Abstract: This study focuses on the of key engineering parameters for the repair of shipboard carbon fiber reinforced polymer composite structures using a scarf patch repair configuration. A three-dimensional finite element model was developed to systematically analyze the effects of repair location (center-symmetric, diagonal-asymmetric, and edge-unidirectional) and cut-out depth (2.0 mm, 3.0 mm, and 4.0 mm) on the mechanical response of the repair structure. The results indicate that although the local stress level of the center-symmetric repair is slightly higher, it provides a continuous load transfer path with more balanced stress distribution, demonstrating the best overall mechanical performance. When the cut-out depth is 3.0 mm, the repair structure achieves an optimal balance between stress uniformity and displacement coordination, effectively reducing the risk of early adhesive layer failure and local buckling. This study identifies the optimal parameter combination for scarf patch repairs, providing important theoretical foundations and references for the design of repair processes and the standardization of engineering practices in shipboard composite structures. [ABSTRACT FROM AUTHOR]
Copyright of Materials (1996-1944) 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.)
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DbLabel: Engineering Source
An: 193436313
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PubTypeId: academicJournal
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  Data: Parametric Study on Scarf Patch Repairs for Shipboard Composite Structures.
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  Data: <searchLink fieldCode="AR" term="%22Liang%2C+Panpan%22">Liang, Panpan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Guanbo%22">Wang, Guanbo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Qingchang%22">Guo, Qingchang</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Maojun%22">Li, Maojun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gong%2C+Pan%22">Gong, Pan</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Apr2026, Vol. 19 Issue 8, p1644. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+structures%22">Composite structures</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+concentration%22">Stress concentration</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+fiber-reinforced+plastics%22">Carbon fiber-reinforced plastics</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study focuses on the of key engineering parameters for the repair of shipboard carbon fiber reinforced polymer composite structures using a scarf patch repair configuration. A three-dimensional finite element model was developed to systematically analyze the effects of repair location (center-symmetric, diagonal-asymmetric, and edge-unidirectional) and cut-out depth (2.0 mm, 3.0 mm, and 4.0 mm) on the mechanical response of the repair structure. The results indicate that although the local stress level of the center-symmetric repair is slightly higher, it provides a continuous load transfer path with more balanced stress distribution, demonstrating the best overall mechanical performance. When the cut-out depth is 3.0 mm, the repair structure achieves an optimal balance between stress uniformity and displacement coordination, effectively reducing the risk of early adhesive layer failure and local buckling. This study identifies the optimal parameter combination for scarf patch repairs, providing important theoretical foundations and references for the design of repair processes and the standardization of engineering practices in shipboard composite structures. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Materials (1996-1944) 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:
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    Identifiers:
      – Type: doi
        Value: 10.3390/ma19081644
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 1644
    Subjects:
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Composite structures
        Type: general
      – SubjectFull: Mechanical behavior of materials
        Type: general
      – SubjectFull: Stress concentration
        Type: general
      – SubjectFull: Carbon fiber-reinforced plastics
        Type: general
    Titles:
      – TitleFull: Parametric Study on Scarf Patch Repairs for Shipboard Composite Structures.
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            NameFull: Liang, Panpan
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            NameFull: Wang, Guanbo
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            NameFull: Guo, Qingchang
      – PersonEntity:
          Name:
            NameFull: Li, Maojun
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            NameFull: Gong, Pan
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            – D: 15
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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              Value: 19961944
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              Value: 19
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              Value: 8
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            – TitleFull: Materials (1996-1944)
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