Thermo-mechanical debonding map for repairing composite–metal adhesive joints
Adhesive bonding is one of the dominant joining technologies in Design for Assembly to obtain innovative engineering products with complex geometries. These permanently bonded joints could be disassembled for repair purposes using the thermo-mechanical debonding technique to salvage the high-cost co...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/145947 |
| _version_ | 1826114069482962944 |
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| author | Srinivasan, Dharun Vadugappatty Idapalapati, Sridhar |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Srinivasan, Dharun Vadugappatty Idapalapati, Sridhar |
| author_sort | Srinivasan, Dharun Vadugappatty |
| collection | NTU |
| description | Adhesive bonding is one of the dominant joining technologies in Design for Assembly to obtain innovative engineering products with complex geometries. These permanently bonded joints could be disassembled for repair purposes using the thermo-mechanical debonding technique to salvage the high-cost composite components without any damage. In this work, the temperature dependent storage modulus, loss modulus and tensile properties of the bulk modified epoxy film adhesive were measured through instrumented tests. Glass fibre reinforced composite and Ti–6Al–4V alloy sheets were bonded with the modified epoxy film adhesive and the floating roller peel performance was studied as a function of temperature to understand the load-displacement and failure mechanisms for generating a debonding map. The debonding region was identified in the temperature range between 1.17 Tg and 1.33 Tg. The knock-down in storage modulus and initial peel load exhibited a similar trend with respect to the temperature. |
| first_indexed | 2024-10-01T03:33:28Z |
| format | Journal Article |
| id | ntu-10356/145947 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:33:28Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1459472021-01-23T20:10:59Z Thermo-mechanical debonding map for repairing composite–metal adhesive joints Srinivasan, Dharun Vadugappatty Idapalapati, Sridhar School of Mechanical and Aerospace Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Materials::Composite materials Engineering::Manufacturing::Polymers and plastics Debonding Hybrid Joints Adhesive bonding is one of the dominant joining technologies in Design for Assembly to obtain innovative engineering products with complex geometries. These permanently bonded joints could be disassembled for repair purposes using the thermo-mechanical debonding technique to salvage the high-cost composite components without any damage. In this work, the temperature dependent storage modulus, loss modulus and tensile properties of the bulk modified epoxy film adhesive were measured through instrumented tests. Glass fibre reinforced composite and Ti–6Al–4V alloy sheets were bonded with the modified epoxy film adhesive and the floating roller peel performance was studied as a function of temperature to understand the load-displacement and failure mechanisms for generating a debonding map. The debonding region was identified in the temperature range between 1.17 Tg and 1.33 Tg. The knock-down in storage modulus and initial peel load exhibited a similar trend with respect to the temperature. Agency for Science, Technology and Research (A*STAR) Economic Development Board (EDB) Nanyang Technological University National Research Foundation (NRF) Accepted version This work was conducted within the Rolls-Royce@NTU Corporate Lab under the project ‘ARMS 1.3 Repair of Composite Aero-engine Structures’ with support from the Industry Alignment Fund (IAF) Singapore under the Corp Lab@University Scheme. 2021-01-18T01:40:07Z 2021-01-18T01:40:07Z 2021 Journal Article Srinivasan, D. V., & Idapalapati, S. (2021) Thermo-mechanical debonding map for repairing composite–metal adhesive joints. Journal of Adhesion Science and Technology, 1(35), 3-14. doi:10.1080/01694243.2020.1785991 1568-5616 https://hdl.handle.net/10356/145947 10.1080/01694243.2020.1785991 35 1 3 14 en Journal of Adhesion Science and Technology This is an Accepted Manuscript of an article published by Informa UK Limited, trading as Taylor and Francis in Journal of Adhesion Science and Technology on 2 Jul 2020, available online: http://www.tandfonline.com/10.1080/01694243.2020.1785991 application/pdf |
| spellingShingle | Engineering::Materials::Composite materials Engineering::Manufacturing::Polymers and plastics Debonding Hybrid Joints Srinivasan, Dharun Vadugappatty Idapalapati, Sridhar Thermo-mechanical debonding map for repairing composite–metal adhesive joints |
| title | Thermo-mechanical debonding map for repairing composite–metal adhesive joints |
| title_full | Thermo-mechanical debonding map for repairing composite–metal adhesive joints |
| title_fullStr | Thermo-mechanical debonding map for repairing composite–metal adhesive joints |
| title_full_unstemmed | Thermo-mechanical debonding map for repairing composite–metal adhesive joints |
| title_short | Thermo-mechanical debonding map for repairing composite–metal adhesive joints |
| title_sort | thermo mechanical debonding map for repairing composite metal adhesive joints |
| topic | Engineering::Materials::Composite materials Engineering::Manufacturing::Polymers and plastics Debonding Hybrid Joints |
| url | https://hdl.handle.net/10356/145947 |
| work_keys_str_mv | AT srinivasandharunvadugappatty thermomechanicaldebondingmapforrepairingcompositemetaladhesivejoints AT idapalapatisridhar thermomechanicaldebondingmapforrepairingcompositemetaladhesivejoints |