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Experimental Study on Damage Characteristics of CFRPs/Aluminum Honeycomb Sandwich Structure Impacted by Ultra-High Speed Under High and Low Temperatures
- Source :
- International Journal of Structural Stability and Dynamics. 20:2050028
- Publication Year :
- 2020
- Publisher :
- World Scientific Pub Co Pte Lt, 2020.
-
Abstract
- With the rapid development of material science, the original aluminum alloy shield structure of spacecraft has been gradually replaced by sandwiched structure of carbon fiber reinforced resin matrix composite structure with aluminum honeycomb. In order to reveal the damage characteristics induced by debris impacting on shield structure of spacecraft and aiming at the engineering requirements that spacecraft undergo alternately high and low temperature environment during on-orbit operation, CFRPs/aluminum honeycomb core sandwich shield structure is used as the impact object. The damage characteristics of 2A12 aluminum projectile impacting on CFRPs/aluminum honeycomb sandwich structure with different aluminum honeycomb arm lengths at different impact velocities are studied by using the high and low temperature system for the target and the loading system of two-stage light gas gun. The experimental results show that the arm lengths of aluminum honeycomb have little effect on the perforation area of front and rear surfaces of CFRPs/aluminum honeycomb sandwich structure at high temperature, but the impact speed has a great effect on the perforation areas of front and rear surfaces of rear panels. The lower the impact speed is, the smaller the perforation diameter is. The deformation and ablation areas of the front and rear surfaces of the aluminum honeycomb increase with the increasing of the arm length of the aluminum honeycomb. At the same time, the physical quantities mentioned above have similar changes in low temperature environment. The fitting formulas, such as the relationships among perforations of the front and rear surfaces of CFRP and the arm lengths of aluminum honeycomb, and ablation area of aluminum honeycomb and the arm lengths of aluminum honeycomb are given at the given experimental conditions. The micro-morphology and damage characteristics of the panels and aluminum honeycomb are analyzed at the different locations near the impact point at high temperature.
- Subjects :
- Ultra high speed
Materials science
Chemical substance
Alloy
Aerospace Engineering
chemistry.chemical_element
020101 civil engineering
Ocean Engineering
02 engineering and technology
engineering.material
0201 civil engineering
law.invention
0203 mechanical engineering
Magazine
Aluminium
law
Shield
Composite material
Civil and Structural Engineering
Applied Mathematics
Mechanical Engineering
Building and Construction
020303 mechanical engineering & transports
chemistry
engineering
Hypervelocity
Science, technology and society
Subjects
Details
- ISSN :
- 17936764 and 02194554
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- International Journal of Structural Stability and Dynamics
- Accession number :
- edsair.doi...........6716098361836410dd6b57cbc86eaacb