Abstract
In the applications of composite honeycomb sandwich structures, they often are severely impacted, resulting in partial penetration or complete perforation. To study the mechanical response of composite honeycomb sandwich structures under high-velocity impact, an extended model was developed to describe the equivalent property of honeycomb materials. Extended model parameters were determined using analytical and experimental techniques. Based on the equivalent model, the impact response had good agreement between the experimental results and numerical simulation. By comparison with the detailed model in terms of ballistic limit, residual velocity, maximum displacement of the projectile, and contact time, the results from the equivalent model are not only reliable but also computationally efficient, because the equivalent model requires only 25% as much time as the detailed model under the same conditions.
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Data Availability Statement
No data, models, or code were generated or used during the study.
Acknowledgments
The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China under Grant No. 11672248 and from Aisheng Innovation Development Foundation.
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Published In
Journal of Aerospace Engineering
Volume 33 • Issue 4 • July 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Jul 5, 2019
Accepted: Nov 15, 2019
Published online: Mar 18, 2020
Published in print: Jul 1, 2020
Discussion open until: Aug 18, 2020
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