Tensile mechanical properties of metal honeycomb sandwich structure with interface connection defects

Xiaodong He; Xianghao Kong

doi:10.1117/12.847264

30 March 2010 Tensile mechanical properties of metal honeycomb sandwich structure with interface connection defects

Xiaodong He, Xianghao Kong

Proceedings Volume 7644, Behavior and Mechanics of Multifunctional Materials and Composites 2010; 764421 (2010) https://doi.org/10.1117/12.847264
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Thermal protection system is one of the key technologies of reusable launch vehicle (RLV). The ARMOR TPS is one of important candidate structure of RLV. ARMOR TPS has many advantages, for example: fixing easily, longer life, good properties, short time of maintenance and service. In comparison with traditional TPS, the ARMOR TPS will be the best selection for all kinds of RLV. So the ARMOR thermal protection system will be used in aviation and spaceflight field more and more widely because of its much better performance. ARMOR TPS panel is above the whole ARMOR TPS, and the metal honeycomb sandwich structure is the surface of the ARMOR TPS panel. So the metal honeycomb sandwich structure plays an important role in the ARMOR TPS, while it bears the flight dynamic pressure and stands against the flight dynamic calefaction. Because the active environment of metal honeycomb sandwich structure is very formidable, it can produce interface connection defects which can exist in the process of manufacture as well. Tensile mechanical properties of the metallic honeycomb sandwich structure with defects are analyzed to obtain damage tolerance of the structure. The effect of shape, dimension and location of defects on the tensile mechanical properties is conducted by experimental study. Then finite element analysis is performed to validate the experimental results. Haynes214 which is a kind of super alloy materials with high performances is chosen as both face sheet and core in this paper.

Citation Download Citation

Xiaodong He and Xianghao Kong "Tensile mechanical properties of metal honeycomb sandwich structure with interface connection defects", Proc. SPIE 7644, Behavior and Mechanics of Multifunctional Materials and Composites 2010, 764421 (30 March 2010); https://doi.org/10.1117/12.847264

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