Sandwich structure composites are commonly used in Radar radomes, the core materials mainly include honeycomb material and foam material. Impact damage is the greatest threat to this kind of structure. In this paper, low-velocity impact damage was simulated by drop hammer test, while ultrasonic phased array technique was used as NDT(Non-Destructive Testing Technology), and restored by scarf repair technique. The mechanical properties and the electromagnetic wave performance of the foam sandwich panel before and after repair were carried out comparatively. The results show that, the flexural strength can restore 112.7% of the undamaged plate, and the lateral compressive strength can restore 85.1%. The repair efficiency calculated from tests was observed to be 135% and 50.7% respectively. Besides, electro-magnetic wave permeability was improved apparently. The method for repairing the low-velocity impact damage of the foam sandwich structure can meet the requirements of the rapid repair for practical radome structure.
| DOI | 10.11648/j.sd.20170504.12 |
| Published in | Science Discovery (Volume 5, Issue 4, August 2017) |
| Page(s) | 251-256 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Foam Sandwich Composites, Low-velocity Impact, Rapid Repair
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APA Style
Wang Changyue, Zhang Hongrui, Ju Su. (2017). Experimental Study on Rapid Repair of Foam Sandwich Composites for Radome with Low-velocity Impact Damage. Science Discovery, 5(4), 251-256. https://doi.org/10.11648/j.sd.20170504.12
ACS Style
Wang Changyue; Zhang Hongrui; Ju Su. Experimental Study on Rapid Repair of Foam Sandwich Composites for Radome with Low-velocity Impact Damage. Sci. Discov. 2017, 5(4), 251-256. doi: 10.11648/j.sd.20170504.12
AMA Style
Wang Changyue, Zhang Hongrui, Ju Su. Experimental Study on Rapid Repair of Foam Sandwich Composites for Radome with Low-velocity Impact Damage. Sci Discov. 2017;5(4):251-256. doi: 10.11648/j.sd.20170504.12
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Download@article{10.11648/j.sd.20170504.12,
author = {Wang Changyue and Zhang Hongrui and Ju Su},
title = {Experimental Study on Rapid Repair of Foam Sandwich Composites for Radome with Low-velocity Impact Damage},
journal = {Science Discovery},
volume = {5},
number = {4},
pages = {251-256},
doi = {10.11648/j.sd.20170504.12},
url = {https://doi.org/10.11648/j.sd.20170504.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20170504.12},
abstract = {Sandwich structure composites are commonly used in Radar radomes, the core materials mainly include honeycomb material and foam material. Impact damage is the greatest threat to this kind of structure. In this paper, low-velocity impact damage was simulated by drop hammer test, while ultrasonic phased array technique was used as NDT(Non-Destructive Testing Technology), and restored by scarf repair technique. The mechanical properties and the electromagnetic wave performance of the foam sandwich panel before and after repair were carried out comparatively. The results show that, the flexural strength can restore 112.7% of the undamaged plate, and the lateral compressive strength can restore 85.1%. The repair efficiency calculated from tests was observed to be 135% and 50.7% respectively. Besides, electro-magnetic wave permeability was improved apparently. The method for repairing the low-velocity impact damage of the foam sandwich structure can meet the requirements of the rapid repair for practical radome structure.},
year = {2017}
}
TY - JOUR T1 - Experimental Study on Rapid Repair of Foam Sandwich Composites for Radome with Low-velocity Impact Damage AU - Wang Changyue AU - Zhang Hongrui AU - Ju Su Y1 - 2017/05/20 PY - 2017 N1 - https://doi.org/10.11648/j.sd.20170504.12 DO - 10.11648/j.sd.20170504.12 T2 - Science Discovery JF - Science Discovery JO - Science Discovery SP - 251 EP - 256 PB - Science Publishing Group SN - 2331-0650 UR - https://doi.org/10.11648/j.sd.20170504.12 AB - Sandwich structure composites are commonly used in Radar radomes, the core materials mainly include honeycomb material and foam material. Impact damage is the greatest threat to this kind of structure. In this paper, low-velocity impact damage was simulated by drop hammer test, while ultrasonic phased array technique was used as NDT(Non-Destructive Testing Technology), and restored by scarf repair technique. The mechanical properties and the electromagnetic wave performance of the foam sandwich panel before and after repair were carried out comparatively. The results show that, the flexural strength can restore 112.7% of the undamaged plate, and the lateral compressive strength can restore 85.1%. The repair efficiency calculated from tests was observed to be 135% and 50.7% respectively. Besides, electro-magnetic wave permeability was improved apparently. The method for repairing the low-velocity impact damage of the foam sandwich structure can meet the requirements of the rapid repair for practical radome structure. VL - 5 IS - 4 ER -
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