Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts
This study investigates the impact behaviour and post-impact performance of polyamide-6 glass fibre reinforced composites, manufactured by thermoplastic resin transfer moulding. Impact test samples were extracted from quasi-isotropic laminates using two different glass fibre sizings, both with a fib...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/18/5790 |
| _version_ | 1797519500665421824 |
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| author | James J. Murray Tom Allen Simon Bickerton Ankur Bajpai Klaus Gleich Edward D. McCarthy Conchúr M. Ó Brádaigh |
| author_facet | James J. Murray Tom Allen Simon Bickerton Ankur Bajpai Klaus Gleich Edward D. McCarthy Conchúr M. Ó Brádaigh |
| author_sort | James J. Murray |
| collection | DOAJ |
| description | This study investigates the impact behaviour and post-impact performance of polyamide-6 glass fibre reinforced composites, manufactured by thermoplastic resin transfer moulding. Impact test samples were extracted from quasi-isotropic laminates using two different glass fibre sizings, both with a fibre volume fraction of approximately 52%. A previous study showed that one of these sizings enhanced the interfacial strength and Mode I fracture toughness; however, the effects of the sizing on out-of-plane impact is of greater significance in terms of automotive applications. A drop-weight impact tester was used to determine out-of-plane impact performance for both sizings in terms of impact load-induced and energy returned from the striker. High-speed video of the impact response was simultaneously captured. Testing was carried out at three impact energy levels: two sub-penetration and one full penetration. The impact damage area was observed, and the post-damage compression properties of samples were measured to determine the reduction in their strength and stiffness. Results showed that the use of different sizing technologies had little effect on the post-impact compressive properties and that penetration led to only a 29% drop in compression strength. Overall, the outcomes of this work demonstrate the potential of these materials in automotive applications. |
| first_indexed | 2024-03-10T07:42:44Z |
| format | Article |
| id | doaj.art-8e6034aebbc54cb1bc3584944911c317 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T07:42:44Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-8e6034aebbc54cb1bc3584944911c3172023-11-22T12:53:07ZengMDPI AGEnergies1996-10732021-09-011418579010.3390/en14185790Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive PartsJames J. Murray0Tom Allen1Simon Bickerton2Ankur Bajpai3Klaus Gleich4Edward D. McCarthy5Conchúr M. Ó Brádaigh6School of Engineering, Institute for Materials and Processes, Sanderson Building, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, Scotland, UKCentre for Advanced Composite Materials, Department of Mechanical Engineering, University of Auckland, Gate 3, 314-390 Khyber Pass Road, Newmarket, Auckland 1023, New ZealandCentre for Advanced Composite Materials, Department of Mechanical Engineering, University of Auckland, Gate 3, 314-390 Khyber Pass Road, Newmarket, Auckland 1023, New ZealandSchool of Engineering, Institute for Materials and Processes, Sanderson Building, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, Scotland, UKJohns Manville Europe GmbH, Werner-Schuller-Str.1, 97877 Wertheim, GermanySchool of Engineering, Institute for Materials and Processes, Sanderson Building, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, Scotland, UKSchool of Engineering, Institute for Materials and Processes, Sanderson Building, The University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, Scotland, UKThis study investigates the impact behaviour and post-impact performance of polyamide-6 glass fibre reinforced composites, manufactured by thermoplastic resin transfer moulding. Impact test samples were extracted from quasi-isotropic laminates using two different glass fibre sizings, both with a fibre volume fraction of approximately 52%. A previous study showed that one of these sizings enhanced the interfacial strength and Mode I fracture toughness; however, the effects of the sizing on out-of-plane impact is of greater significance in terms of automotive applications. A drop-weight impact tester was used to determine out-of-plane impact performance for both sizings in terms of impact load-induced and energy returned from the striker. High-speed video of the impact response was simultaneously captured. Testing was carried out at three impact energy levels: two sub-penetration and one full penetration. The impact damage area was observed, and the post-damage compression properties of samples were measured to determine the reduction in their strength and stiffness. Results showed that the use of different sizing technologies had little effect on the post-impact compressive properties and that penetration led to only a 29% drop in compression strength. Overall, the outcomes of this work demonstrate the potential of these materials in automotive applications.https://www.mdpi.com/1996-1073/14/18/5790TP-RTMT-RTMimpactpolyamideautomotivethermoplastic |
| spellingShingle | James J. Murray Tom Allen Simon Bickerton Ankur Bajpai Klaus Gleich Edward D. McCarthy Conchúr M. Ó Brádaigh Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts Energies TP-RTM T-RTM impact polyamide automotive thermoplastic |
| title | Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts |
| title_full | Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts |
| title_fullStr | Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts |
| title_full_unstemmed | Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts |
| title_short | Thermoplastic RTM: Impact Properties of Anionically Polymerised Polyamide 6 Composites for Structural Automotive Parts |
| title_sort | thermoplastic rtm impact properties of anionically polymerised polyamide 6 composites for structural automotive parts |
| topic | TP-RTM T-RTM impact polyamide automotive thermoplastic |
| url | https://www.mdpi.com/1996-1073/14/18/5790 |
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