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| Research on High and Low Temperature Performance of Glass Fiber/Aluminum-Lithium Laminates Based on Aircraft Service Environment |
| LU Yi1, LI Huaguan1,2,3, HUA Xiaoge1, CHEN Yujie1, TAO Jie1 |
( 1. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China;
2. School of Material Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
3. Nanjing Fiberglass R & D Institute, Nanjing 210012, China) |
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Abstract In order to investigate the service performance of novel fiber metal laminates (NFMLs) used in aircraft skin structure, the mechanical properties of NFMLs within -55-120℃ were studied. The interlaminar performance was evaluated by the method of floating roller peeling and interlaminar shear test. The static properties were evaluated by tensile, bend and interlaminar shear tests. The yield strength of NFMLs at high and low temperature was calculated and analyzed based on the mixing theory. The results showed that the interlaminar performance of NFMLs decreased with the increase of temperature, and the tensile or bending strength had excellent high and low temperature performance, but the stiffness decreased obviously, and the change of yield strength was different from that of pure aluminum alloy. Results indicated that the mechanical properties of NFMLs maintained well within -55-70℃ but deteriorated at 120℃ .
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2017, 
