Nagulapally, Prashanth (2017) Dynamic analysis and impact response of a corrugated Sandwich Composite Structure due to low-velocity impact. Coursework Masters thesis, University of Southern Queensland. (Unpublished)
Abstract
In this current research, a study of the dynamic performance of a corrugated sandwich composite structure after a low-velocity impact load is conducted. As a part of this research, an experimental and numerical study of the corrugated sandwich structure is performed. For the experimental study, the corrugated sandwich composite structure is prepared with 8 layers of woven E-glass fibres of 0/90 layup reinforced with epoxy laminate. Initially, compression tests and free vibration tests are first performed on the structure to determine first 3 natural frequencies and stiffness of the structure before impact. Then the specimen is subjected to a low-velocity load, and then again vibration test is performed on the structure to study the change in natural frequencies of the structure after the impact. To correlate the experimental results a numerical study of the corrugated sandwich composite structure is conducted in Ansys 18.0 finite element software. 2 corrugated sandwich composite structures are modelled in Ansys software one specimen without the damage and another specimen with damage. Model analysis is performed on these two 3d models to determine the natural frequencies of the structure before and after damage. Then the finite element analysis results are compared with experimental results for validation.
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| Item Type: | Thesis (Non-Research) (Coursework Masters) |
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| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current - Faculty of Health, Engineering and Sciences - No Department (1 Jul 2013 -) |
| Supervisors: | Epaarachchi, Jayantha |
| Qualification: | Master of Engineering Sciences (Mechanical Engineering) |
| Date Deposited: | 19 Jul 2026 22:53 |
| Last Modified: | 19 Jul 2026 22:53 |
| Uncontrolled Keywords: | corrugated sandwich composite structure, low-velocity, impact load, E-glass fibres, epoxy laminate |
| URI: | https://sear.unisq.edu.au/id/eprint/53275 |
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