A Study on the Best Conventional Shapes for Composite Repair Patches
Abstract Adhesively bonded repair patches are an excellent approach for repairing locally damaged composite components. If correctly applied, fiber-reinforced patches may restore/increment the mechanical response of damaged laminates without significantly increasing the structure’s mass or altering...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2021-09-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000800204&tlng=en |
| _version_ | 1798022093228474368 |
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| author | Leonel Echer Carlos Eduardo de Souza Rogério José Marczak |
| author_facet | Leonel Echer Carlos Eduardo de Souza Rogério José Marczak |
| author_sort | Leonel Echer |
| collection | DOAJ |
| description | Abstract Adhesively bonded repair patches are an excellent approach for repairing locally damaged composite components. If correctly applied, fiber-reinforced patches may restore/increment the mechanical response of damaged laminates without significantly increasing the structure’s mass or altering its geometry. However, in order to take full advantage of this repairing technique, one must employ patches with a minimal surface area and maximum efficiency in incrementing the strength of the component. The present work aims to study optimum-based patch shapes for conventional repair geometries, namely rectangular and elliptical. Shell Finite Elements models were used to simulate a parent plate, which is a rectangular flat laminate with a central trespassing damage region. Unbalanced single-ply patches were modeled on the upper surface of the damaged laminate. The patches' efficiency was computed as its capability in restoring the modal response of the repaired component to its undamaged configuration. Sequential linear programming was employed alongside shell finite element models to obtain optimal geometrical parameters for the patches' shape. The study cases comported two different boundary conditions and two stacking sequences. The optimum-base repair patches were defined regarding size and fiber orientation angle. |
| first_indexed | 2024-04-11T17:24:12Z |
| format | Article |
| id | doaj.art-1bdc41b2620e437f9121dcea4e373a14 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T17:24:12Z |
| publishDate | 2021-09-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-1bdc41b2620e437f9121dcea4e373a142022-12-22T04:12:23ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392021-09-0124suppl 210.1590/1980-5373-mr-2021-0304A Study on the Best Conventional Shapes for Composite Repair PatchesLeonel Echerhttps://orcid.org/0000-0003-0353-8941Carlos Eduardo de Souzahttps://orcid.org/0000-0002-9371-4525Rogério José MarczakAbstract Adhesively bonded repair patches are an excellent approach for repairing locally damaged composite components. If correctly applied, fiber-reinforced patches may restore/increment the mechanical response of damaged laminates without significantly increasing the structure’s mass or altering its geometry. However, in order to take full advantage of this repairing technique, one must employ patches with a minimal surface area and maximum efficiency in incrementing the strength of the component. The present work aims to study optimum-based patch shapes for conventional repair geometries, namely rectangular and elliptical. Shell Finite Elements models were used to simulate a parent plate, which is a rectangular flat laminate with a central trespassing damage region. Unbalanced single-ply patches were modeled on the upper surface of the damaged laminate. The patches' efficiency was computed as its capability in restoring the modal response of the repaired component to its undamaged configuration. Sequential linear programming was employed alongside shell finite element models to obtain optimal geometrical parameters for the patches' shape. The study cases comported two different boundary conditions and two stacking sequences. The optimum-base repair patches were defined regarding size and fiber orientation angle.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000800204&tlng=enRepair patchdamaged laminatestructural optimizationmodal responseshell FE |
| spellingShingle | Leonel Echer Carlos Eduardo de Souza Rogério José Marczak A Study on the Best Conventional Shapes for Composite Repair Patches Materials Research Repair patch damaged laminate structural optimization modal response shell FE |
| title | A Study on the Best Conventional Shapes for Composite Repair Patches |
| title_full | A Study on the Best Conventional Shapes for Composite Repair Patches |
| title_fullStr | A Study on the Best Conventional Shapes for Composite Repair Patches |
| title_full_unstemmed | A Study on the Best Conventional Shapes for Composite Repair Patches |
| title_short | A Study on the Best Conventional Shapes for Composite Repair Patches |
| title_sort | study on the best conventional shapes for composite repair patches |
| topic | Repair patch damaged laminate structural optimization modal response shell FE |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000800204&tlng=en |
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