Innovative impact testing machine for enhancing impact related research in Australia
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Accepted Version
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108149608. Available under License Creative Commons Attribution Non-commercial 4.0. |
Description
This paper summarises the development of a state-of-art impact testing machine for simulating impacts such as vehicular crashes or debris impacts onto structures. The machine has a 200 kg pneumatically powered projectile which can travel horizontally within the barrel of the machine with a maximum velocity of 50 m/s to impact the target structure. The maximum kinetic energy that can be generated by the projectile is 125 kJ by using different combinations of mass and velocity. The diameter of the projectile is 214 mm, and its impacting face can be changed to different shapes, such as flat circle, flat square or an elliptical nose to suit different impact scenarios. An innovative braking mechanism incorporating a crush tube is attached within the barrel to ensure safety when the projectile fails to be restrained by the impact. The crush tube can absorb the maximum imparted by the moving projectile. An advanced data acquisition system is installed to collect quantitative and qualitative test data during a period of 50 ms to 1 s. Two high-speed digital image correlation (DIC) cameras are attached and synchronised with the operation of the impact testing machine to record the images at the rate of 50,000 frames per second. Outputs in terms of strains, deformations, accelerations of the target structure with a record of damage history can be analysed using this 3D DIC technique. The paper also briefly presents the first application of this machine for impact testing masonry wall structures.
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| ID Code: | 229574 | ||||||||
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| Item Type: | Contribution to Journal (Journal Article) | ||||||||
| Refereed: | Yes | ||||||||
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| Additional Information: | Funding Information: The authors acknowledge the Australian Research Council (ARC) for the financial support to this project (under the LIEF Project). They also acknowledge the cash and in-kind contributions from QUT and the 10 partner universities. The conceptual design and the potential application of the impact testing machine was initially suggested by Manicka Dhanasekar, former Professor of Infrastructure Engineering at QUT. The authors acknowledge the original QUT CIs: Professor David P Thambiratnam, Professor Manicka Dhanasekar (formerly from QUT), Professor Tommy HT Chan, Dr Sabrina Fawzia and Dr Xuemei Liu (now at University of Melbourne) whose time and effort enabled to win this LIEF grant. This impact testing machine was designed and is now being fabricated by the QUT technologists, Mark Hayne, and Tony Morris. The authors wish to thank them for their contribution and their continued commitment to the project. | ||||||||
| Measurements or Duration: | 22 pages | ||||||||
| Keywords: | accelerations, deformations, Impact testing machine, pneumatic, projectile, strains, vehicular crashes | ||||||||
| DOI: | 10.1177/20414196211073502 | ||||||||
| ISSN: | 2041-4196 | ||||||||
| Pure ID: | 108149608 | ||||||||
| Divisions: | Current > Research Centres > Centre for Materials Science Current > QUT Faculties and Divisions > Academic Division Current > QUT Faculties and Divisions > Faculty of Science Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Civil & Environmental Engineering |
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| Funding Information: | The authors acknowledge the Australian Research Council (ARC) for the financial support to this project (under the LIEF Project). They also acknowledge the cash and in-kind contributions from QUT and the 10 partner universities. The conceptual design and the potential application of the impact testing machine was initially suggested by Manicka Dhanasekar, former Professor of Infrastructure Engineering at QUT. The authors acknowledge the original QUT CIs: Professor David P Thambiratnam, Professor Manicka Dhanasekar (formerly from QUT), Professor Tommy HT Chan, Dr Sabrina Fawzia and Dr Xuemei Liu (now at University of Melbourne) whose time and effort enabled to win this LIEF grant. This impact testing machine was designed and is now being fabricated by the QUT technologists, Mark Hayne, and Tony Morris. The authors wish to thank them for their contribution and their continued commitment to the project. | ||||||||
| Copyright Owner: | The Author(s) 2022 | ||||||||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||||
| Deposited On: | 12 Apr 2022 02:07 | ||||||||
| Last Modified: | 12 Apr 2024 00:04 |
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