Title: Testing and Analysis Correlation of Composite Sandwich Longitudinal Bonded Joints for Space Launch Vehicle Structures

Authors: David W. Sleight, Arunkumar Satyanarayana, Brian H. Mason, Babak Farrokh, and Kenneth Segal

DOI: 10.33599/nasampe/c.19.0653

Abstract: The NASA Composite Technology for Exploration (CTE) Project has been developing and demonstrating critical composite technologies with a focus on joints; incorporating materials, design/analysis, manufacturing, and tests that utilize NASA expertise and capabilities. The CTE project has focused on the development of composite longitudinal bonded joint technologies for conical structures such as the SLS Payload Attach Fitting (PAF) due to challenging joint geometries and loads compared to cylindrical jointed structures. The CTE team selected and designed a double-lap composite bonded joint as the most advantageous longitudinal joint to advance for the CTE project. This paper reports on the longitudinal bonded joint sub-element test articles that were fabricated and tested for several loading conditions to test the capability of the bonded joint design. Test and analysis correlation to the sub-element test articles are presented in the paper.

References: 1. Kirsch, Michael, T. “Composite Crew Module: Primary Structure,” NASA/TM-2011-217185. 2. Johnson, T. F., Sleight, D. W., and Martin, R. A., “Structures and Design Phase I Summary for the NASA Composite Cryotank Technology Demonstration Project,” 54th AIAA/ASME/ASCE/AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Boston, MA, April 2013. 3. Fikes, J. C., Jackson, J. R., Richardson, S. W., Thomas, A. S., and, T. O., and Miller, S. G., “Composites for Exploration Upper Stage,” NASA/TM-2016-219433, December 2016. 4. Sleight, David. W., Rosario, S., Johnson, T. F., and Shular, D. A., “Composite Cryotank Technology Demonstration 5.5-Meter Diameter Pre-Test, Analysis and Test Readiness,” NASA/TM-2016-219325. 5. Mann, T., Smeltzer, S., Grenoble, R. W., Mason, B. H., Rosario, S., & Fairbairn, R., "Sizing and Lifecycle Cost Analysis of an Ares V Composite Interstage", AIAA 2012-1770, 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, HI, April 2012. 6. Sleight, D. W., Segal, K. N., Guin, W. E., McDougal, M. R., Wolfe, C. C., Johnston, M. M., and Miller, S. G., “Development of Composite Sandwich Bonded Longitudinal Joints for Space Launch Vehicle Structures”, AIAA Sci-Tech 2019. 7. NX Nastran, Software Package, Ver. 10, Siemens PLM Software, Inc., Plano, TX, 2014 8. Satyanarayana, A., Bogert, P., Karayev, Z. K., Nordman, S. P., Hamid, “Influence of Finite Element Size in Residual Strength Prediction of Composite Structures,” Proceedings of the 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Honolulu, Hawaii, April 2012, AIAA-2012-1619. 9. Abaqus, Software Package, Ver. 6.13, Dassault Systèmes, Waltham, MA, 2013. 10. Mason, B. H., Satyanarayana, A., and Sleight, D. W., “Test and Analysis Correlation for Sandwich Composite Longitudinal Joint Specimens,” AIAA Sci-Tech 2019.

Conference: CAMX 2019

Publication Date: 2019/09/23

SKU: TP19-0653

Pages: 15

Price: $30.00