Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends
The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at ver...
Ausführliche Beschreibung
Autor*in: |
Gabriela Loi [verfasserIn] Pasquale Buonadonna [verfasserIn] Rayane El Mohtadi [verfasserIn] Mauro Carta [verfasserIn] Daniele Lai [verfasserIn] Mohamad El Mehtedi [verfasserIn] Francesco Aymerich [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2024 |
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Schlagwörter: |
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Übergeordnetes Werk: |
In: Journal of Composites Science - MDPI AG, 2018, 8(2024), 3, p 84 |
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Übergeordnetes Werk: |
volume:8 ; year:2024 ; number:3, p 84 |
Links: |
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DOI / URN: |
10.3390/jcs8030084 |
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Katalog-ID: |
DOAJ100484654 |
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10.3390/jcs8030084 doi (DE-627)DOAJ100484654 (DE-599)DOAJ41bab92b765042c6a485fe5445eefab3 DE-627 ger DE-627 rakwb eng Gabriela Loi verfasserin aut Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. z-pinning step joints fatigue delamination Technology T Science Q Pasquale Buonadonna verfasserin aut Rayane El Mohtadi verfasserin aut Mauro Carta verfasserin aut Daniele Lai verfasserin aut Mohamad El Mehtedi verfasserin aut Francesco Aymerich verfasserin aut In Journal of Composites Science MDPI AG, 2018 8(2024), 3, p 84 (DE-627)1004949367 2504477X nnns volume:8 year:2024 number:3, p 84 https://doi.org/10.3390/jcs8030084 kostenfrei https://doaj.org/article/41bab92b765042c6a485fe5445eefab3 kostenfrei https://www.mdpi.com/2504-477X/8/3/84 kostenfrei https://doaj.org/toc/2504-477X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2024 3, p 84 |
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10.3390/jcs8030084 doi (DE-627)DOAJ100484654 (DE-599)DOAJ41bab92b765042c6a485fe5445eefab3 DE-627 ger DE-627 rakwb eng Gabriela Loi verfasserin aut Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. z-pinning step joints fatigue delamination Technology T Science Q Pasquale Buonadonna verfasserin aut Rayane El Mohtadi verfasserin aut Mauro Carta verfasserin aut Daniele Lai verfasserin aut Mohamad El Mehtedi verfasserin aut Francesco Aymerich verfasserin aut In Journal of Composites Science MDPI AG, 2018 8(2024), 3, p 84 (DE-627)1004949367 2504477X nnns volume:8 year:2024 number:3, p 84 https://doi.org/10.3390/jcs8030084 kostenfrei https://doaj.org/article/41bab92b765042c6a485fe5445eefab3 kostenfrei https://www.mdpi.com/2504-477X/8/3/84 kostenfrei https://doaj.org/toc/2504-477X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2024 3, p 84 |
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10.3390/jcs8030084 doi (DE-627)DOAJ100484654 (DE-599)DOAJ41bab92b765042c6a485fe5445eefab3 DE-627 ger DE-627 rakwb eng Gabriela Loi verfasserin aut Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. z-pinning step joints fatigue delamination Technology T Science Q Pasquale Buonadonna verfasserin aut Rayane El Mohtadi verfasserin aut Mauro Carta verfasserin aut Daniele Lai verfasserin aut Mohamad El Mehtedi verfasserin aut Francesco Aymerich verfasserin aut In Journal of Composites Science MDPI AG, 2018 8(2024), 3, p 84 (DE-627)1004949367 2504477X nnns volume:8 year:2024 number:3, p 84 https://doi.org/10.3390/jcs8030084 kostenfrei https://doaj.org/article/41bab92b765042c6a485fe5445eefab3 kostenfrei https://www.mdpi.com/2504-477X/8/3/84 kostenfrei https://doaj.org/toc/2504-477X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2024 3, p 84 |
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10.3390/jcs8030084 doi (DE-627)DOAJ100484654 (DE-599)DOAJ41bab92b765042c6a485fe5445eefab3 DE-627 ger DE-627 rakwb eng Gabriela Loi verfasserin aut Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. z-pinning step joints fatigue delamination Technology T Science Q Pasquale Buonadonna verfasserin aut Rayane El Mohtadi verfasserin aut Mauro Carta verfasserin aut Daniele Lai verfasserin aut Mohamad El Mehtedi verfasserin aut Francesco Aymerich verfasserin aut In Journal of Composites Science MDPI AG, 2018 8(2024), 3, p 84 (DE-627)1004949367 2504477X nnns volume:8 year:2024 number:3, p 84 https://doi.org/10.3390/jcs8030084 kostenfrei https://doaj.org/article/41bab92b765042c6a485fe5445eefab3 kostenfrei https://www.mdpi.com/2504-477X/8/3/84 kostenfrei https://doaj.org/toc/2504-477X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2024 3, p 84 |
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10.3390/jcs8030084 doi (DE-627)DOAJ100484654 (DE-599)DOAJ41bab92b765042c6a485fe5445eefab3 DE-627 ger DE-627 rakwb eng Gabriela Loi verfasserin aut Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends 2024 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. z-pinning step joints fatigue delamination Technology T Science Q Pasquale Buonadonna verfasserin aut Rayane El Mohtadi verfasserin aut Mauro Carta verfasserin aut Daniele Lai verfasserin aut Mohamad El Mehtedi verfasserin aut Francesco Aymerich verfasserin aut In Journal of Composites Science MDPI AG, 2018 8(2024), 3, p 84 (DE-627)1004949367 2504477X nnns volume:8 year:2024 number:3, p 84 https://doi.org/10.3390/jcs8030084 kostenfrei https://doaj.org/article/41bab92b765042c6a485fe5445eefab3 kostenfrei https://www.mdpi.com/2504-477X/8/3/84 kostenfrei https://doaj.org/toc/2504-477X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2024 3, p 84 |
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Gabriela Loi misc z-pinning misc step joints misc fatigue misc delamination misc Technology misc T misc Science misc Q Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends |
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Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends z-pinning step joints fatigue delamination |
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effect of selective z-pinning on the static and fatigue strength of step joints between composite adherends |
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Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends |
abstract |
The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. |
abstractGer |
The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. |
abstract_unstemmed |
The z-pinning reinforcement technique, which involves inserting thin pins through the body of a laminate, has proven highly effective in enhancing the strength of various composite joint configurations. This investigation aims to explore the enhancements achievable through selective z-pinning at very low pin contents on both the static and fatigue performance of composite joints. Single-step joints between carbon/epoxy adherends were reinforced using steel pins arranged in two, three, or four rows of pins parallel to the edges of the overlap, resulting in pin contents ranging from 0.2% to 0.4%. Joint panels were manufactured through co-curing, and coupons were extracted from the panels for static and fatigue tensile testing. The experimental tests show that z-pinning improves the static strength (by about 15%) and extends the fatigue lives of the joints. The ultimate failure of both unpinned and pinned joints is due to the unstable propagation of a crack at the bond line. The superior performances of pinned joints are mainly due to the bridging tractions imposed between the crack faces by z-pins, which delay the growth of the debonding crack. The enhancements in static and fatigue strength achieved by z-pinning were essentially independent of the number of pin rows, and the pins positioned near the joint edges were found to play a dominant role in controlling the structural performance of pinned joints. |
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Effect of Selective Z-Pinning on the Static and Fatigue Strength of Step Joints between Composite Adherends |
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