Impact Behaviors and Damage Modes of Composites Under Low-Velocity Impact With Different Layup Thicknesses

HAO Kou-an; WANG Zhen-qing; ZHOU Li-min

doi:10.3879/j.issn.1000-0887.2013.07.001

Volume 34 Issue 7

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HAO Kou-an, WANG Zhen-qing, ZHOU Li-min. Impact Behaviors and Damage Modes of Composites Under Low-Velocity Impact With Different Layup Thicknesses[J]. Applied Mathematics and Mechanics, 2013, 34(7): 661-671. doi: 10.3879/j.issn.1000-0887.2013.07.001

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Impact Behaviors and Damage Modes of Composites Under Low-Velocity Impact With Different Layup Thicknesses

doi: 10.3879/j.issn.1000-0887.2013.07.001

¹College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, P.R.China;²Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, P.R.China

Received Date: 2013-05-07
Rev Recd Date: 2013-07-03
Publish Date: 2013-07-15

Abstract

Abstract

Characteristics such as light weight and high strength, have made composite one of the most promising engineering materials, and its damage performance under impact has attracted many researchers’ attention. The low-velocity impact test based on the free-ball impact device was employed to study the impact properties of composites with different thickness. The features of damage modes were analyzed, and were summarized in aspects of relationships between deflection, velocity, contact force, energy and time. It was found that the energy absorbed by composites increased with the thickness. The energy balanced model was introduced based on the principle of conservation of total energy, and the resulting equation was solved with Newton-Raphson numerical technique. The energy balanced model results were compared with the experimental results.
- composite,
- low-velocity impact,
- damage mode,
- energy balanced model

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References(26)

References

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