Effect of temperature and adhesive defect on repaired structure using composite patch
In structural engineering, composite patch repairs are widely used to address cracked structures. However, their behavior under thermo-mechanical loading remains complex and less understood. This study examines the repair of a center-cracked plate subjected to both mechanical and thermo-mechanical e...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2025-01-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/5144/4150 |
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| _version_ | 1841560953067405312 |
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| author | Mohammed Abdulla Meftah Hrairi Abdul Aabid Nur Azam Abdullah |
| author_facet | Mohammed Abdulla Meftah Hrairi Abdul Aabid Nur Azam Abdullah |
| author_sort | Mohammed Abdulla |
| collection | DOAJ |
| description | In structural engineering, composite patch repairs are widely used to address cracked structures. However, their behavior under thermo-mechanical loading remains complex and less understood. This study examines the repair of a center-cracked plate subjected to both mechanical and thermo-mechanical environments, using finite element analysis in ANSYS. The repair effectiveness is evaluated using the Stress Intensity Factor (SIF) at the crack tip. Findings reveal that increased temperature substantially elevates SIF values. Boron/epoxy patches are most effective under mechanical loading, yielding the lowest SIF, while graphite/epoxy patches excel under thermo-mechanical loading due to their lower Coefficient of Thermal Expansion (CTE). Patch thickness influences SIF differently based on loading conditions; thicker patches decrease SIF under mechanical loading but increase it under thermo-mechanical loading. Furthermore, adhesive defects, particularly at the crack tip, markedly increase the risk of adhesive failure, especially under thermo-mechanical conditions. This research underscores the significant impact of temperature variations on the efficiency of structural repairs, contributing to a deeper understanding of composite patch repair performance in cracked structures |
| format | Article |
| id | doaj-art-35cd27ac919c44beae4d1af18a9250b3 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-35cd27ac919c44beae4d1af18a9250b32025-01-03T08:51:16ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932025-01-01197112415010.3221/IGF-ESIS.71.1010.3221/IGF-ESIS.71.10Effect of temperature and adhesive defect on repaired structure using composite patchMohammed AbdullaMeftah HrairiAbdul AabidNur Azam AbdullahIn structural engineering, composite patch repairs are widely used to address cracked structures. However, their behavior under thermo-mechanical loading remains complex and less understood. This study examines the repair of a center-cracked plate subjected to both mechanical and thermo-mechanical environments, using finite element analysis in ANSYS. The repair effectiveness is evaluated using the Stress Intensity Factor (SIF) at the crack tip. Findings reveal that increased temperature substantially elevates SIF values. Boron/epoxy patches are most effective under mechanical loading, yielding the lowest SIF, while graphite/epoxy patches excel under thermo-mechanical loading due to their lower Coefficient of Thermal Expansion (CTE). Patch thickness influences SIF differently based on loading conditions; thicker patches decrease SIF under mechanical loading but increase it under thermo-mechanical loading. Furthermore, adhesive defects, particularly at the crack tip, markedly increase the risk of adhesive failure, especially under thermo-mechanical conditions. This research underscores the significant impact of temperature variations on the efficiency of structural repairs, contributing to a deeper understanding of composite patch repair performance in cracked structureshttps://www.fracturae.com/index.php/fis/article/view/5144/4150aluminiumcomposite patchstress intensity factorfinite element stress analysisthermal analysisadhesive defect |
| spellingShingle | Mohammed Abdulla Meftah Hrairi Abdul Aabid Nur Azam Abdullah Effect of temperature and adhesive defect on repaired structure using composite patch Fracture and Structural Integrity aluminium composite patch stress intensity factor finite element stress analysis thermal analysis adhesive defect |
| title | Effect of temperature and adhesive defect on repaired structure using composite patch |
| title_full | Effect of temperature and adhesive defect on repaired structure using composite patch |
| title_fullStr | Effect of temperature and adhesive defect on repaired structure using composite patch |
| title_full_unstemmed | Effect of temperature and adhesive defect on repaired structure using composite patch |
| title_short | Effect of temperature and adhesive defect on repaired structure using composite patch |
| title_sort | effect of temperature and adhesive defect on repaired structure using composite patch |
| topic | aluminium composite patch stress intensity factor finite element stress analysis thermal analysis adhesive defect |
| url | https://www.fracturae.com/index.php/fis/article/view/5144/4150 |
| work_keys_str_mv | AT mohammedabdulla effectoftemperatureandadhesivedefectonrepairedstructureusingcompositepatch AT meftahhrairi effectoftemperatureandadhesivedefectonrepairedstructureusingcompositepatch AT abdulaabid effectoftemperatureandadhesivedefectonrepairedstructureusingcompositepatch AT nurazamabdullah effectoftemperatureandadhesivedefectonrepairedstructureusingcompositepatch |