Dynamic Behavior and Damage Mechanism of 3D Braided Composite Fan Blade under Bird Impact
Joint Authors
Chen, Wei
Liu, Lulu
Zhao, Zhenhua
Luo, Gang
Huang, Xiong
Source
International Journal of Aerospace Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-17
Country of Publication
Egypt
No. of Pages
16
Abstract EN
The three-dimensional braided composites, with intertwined fiber bundles in the through-thickness direction, have advantages of high interlaminar shear strength, fracture toughness, and excellent impact resistance, making them a promising material for applications in the field of aeroengine fan blades.
As the bird impact behavior of the fan blade directly affects the safety of the aeroengines, it is of great significance to study the dynamic response and damage mechanism of 3D braided composites under bird strike load.
In this paper, the bird impact tests on the 3D four-step braided composite targets were carried out using the gas gun system.
The effects of impact velocity, impact location, and braiding angle on the bird impact behavior were studied.
It is concluded that the damage and failure become more severe with the increasing impact velocity.
The whole impact event could be divided into 3 stages, i.e., local deformation stage, postflow impact stage, and bending deflection stage.
The braided composite presents flexible characteristics and could bear extraordinary deformation during the bird impact.
One distinguishing feature of bird impact damage is the destruction of the clamping root due to bending load caused by cantilever construction.
The internal damage form at the impact area was mainly the separation of the fiber bundles from the matrix while the breakage of the fiber bundles and the crushing of the matrix play the primary role at the root part.
The target plate impacted at the 70% height had the largest bending angle and most serious damage, followed by those impacted at the 90% and 50% heights.
Both the appearance damage and internal damage extent are smallest for 45° braiding composites.
American Psychological Association (APA)
Liu, Lulu& Luo, Gang& Chen, Wei& Zhao, Zhenhua& Huang, Xiong. 2018. Dynamic Behavior and Damage Mechanism of 3D Braided Composite Fan Blade under Bird Impact. International Journal of Aerospace Engineering،Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1167429
Modern Language Association (MLA)
Liu, Lulu…[et al.]. Dynamic Behavior and Damage Mechanism of 3D Braided Composite Fan Blade under Bird Impact. International Journal of Aerospace Engineering No. 2018 (2018), pp.1-16.
https://search.emarefa.net/detail/BIM-1167429
American Medical Association (AMA)
Liu, Lulu& Luo, Gang& Chen, Wei& Zhao, Zhenhua& Huang, Xiong. Dynamic Behavior and Damage Mechanism of 3D Braided Composite Fan Blade under Bird Impact. International Journal of Aerospace Engineering. 2018. Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1167429
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1167429