Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams
The debonding toughness between unidirectional glass fiber reinforced polymer face sheets and cellularic cores of sandwich structures is experimentally measured under static and fatigue loading conditions. The effect of various core geometries, such as regular honeycomb and closed-cell foams of two...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/6/2/51 |
| _version_ | 1797479071990415360 |
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| author | Vignesh Selvam Vijay Shankar Sridharan Sridhar Idapalapati |
| author_facet | Vignesh Selvam Vijay Shankar Sridharan Sridhar Idapalapati |
| author_sort | Vignesh Selvam |
| collection | DOAJ |
| description | The debonding toughness between unidirectional glass fiber reinforced polymer face sheets and cellularic cores of sandwich structures is experimentally measured under static and fatigue loading conditions. The effect of various core geometries, such as regular honeycomb and closed-cell foams of two relative densities on the adhesive interfacial toughness is explored using the single cantilever beam (SCB) testing method. The steady-state crack growth measurements are used to plot the Paris curves. The uniformity of adhesive filleting and the crack path was found to affect the interfacial toughness. The static Mode-1 interfacial toughness of high-density foam cores was witnessed to be maximal, followed by low-density honeycomb, high-density honeycomb, and low-density foam core. Similarly, the fatigue behavior of the low-density honeycomb core has the lowest crack growth rates compared to the other samples, primarily due to uniform adhesive filleting. |
| first_indexed | 2024-03-09T21:40:35Z |
| format | Article |
| id | doaj.art-cddf8fe7bf3f4b77a726d7c31ed20cfc |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-09T21:40:35Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-cddf8fe7bf3f4b77a726d7c31ed20cfc2023-11-23T20:32:45ZengMDPI AGJournal of Composites Science2504-477X2022-02-01625110.3390/jcs6020051Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich BeamsVignesh Selvam0Vijay Shankar Sridharan1Sridhar Idapalapati2School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, SingaporeSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, SingaporeSchool of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, SingaporeThe debonding toughness between unidirectional glass fiber reinforced polymer face sheets and cellularic cores of sandwich structures is experimentally measured under static and fatigue loading conditions. The effect of various core geometries, such as regular honeycomb and closed-cell foams of two relative densities on the adhesive interfacial toughness is explored using the single cantilever beam (SCB) testing method. The steady-state crack growth measurements are used to plot the Paris curves. The uniformity of adhesive filleting and the crack path was found to affect the interfacial toughness. The static Mode-1 interfacial toughness of high-density foam cores was witnessed to be maximal, followed by low-density honeycomb, high-density honeycomb, and low-density foam core. Similarly, the fatigue behavior of the low-density honeycomb core has the lowest crack growth rates compared to the other samples, primarily due to uniform adhesive filleting.https://www.mdpi.com/2504-477X/6/2/51sandwich compositeMode-1 interfacial toughnessSCBsecondary bondinghoneycomb corefoam core |
| spellingShingle | Vignesh Selvam Vijay Shankar Sridharan Sridhar Idapalapati Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams Journal of Composites Science sandwich composite Mode-1 interfacial toughness SCB secondary bonding honeycomb core foam core |
| title | Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams |
| title_full | Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams |
| title_fullStr | Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams |
| title_full_unstemmed | Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams |
| title_short | Static and Fatigue Debond Resistance between the Composite Facesheet and Al Cores under Mode-1 in Sandwich Beams |
| title_sort | static and fatigue debond resistance between the composite facesheet and al cores under mode 1 in sandwich beams |
| topic | sandwich composite Mode-1 interfacial toughness SCB secondary bonding honeycomb core foam core |
| url | https://www.mdpi.com/2504-477X/6/2/51 |
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