**Author details**

*Environmental Impact of Aviation and Sustainable Solutions*

**Appendix A. Material elastic property and density**

**Appendix B. Sandwich panel density**

**Appendix C. Structural model development and analysis process**

greatly appreciated.

measurement and deflection tests, and to Russell Smith and Brett Bednarcyk for leading the fabrication team, and for providing the M-SHELLS coupon structural test results. Authors also acknowledge technical support from Dr. Dave Krause and Dr. Patricia Loyselle, NASA Glenn Research Center, William Kimmel, Chief Technologist, Systems Analysis and Concepts Directorate (SACD), Philip Arcara, Branch Head, and Mark Guynn, Assistant Branch Head, Aeronautics Systems Analysis Branch (ASAB). Thanks are also due to all the technical reviewers for improving the report significantly. Technical discussions with Dr. Wu Li, Dr. Natalia Alexandrov, Jason Kirk and Dr. Jesse Quinlan for improving the chapter are

**18**

Vivek Mukhopadhyay NASA Langley Research Center, Hampton, Virginia, United States

\*Address all correspondence to: v.mukhopadhyay-1@nasa.gov

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
