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Use of Shuttle Heritage Hardware in Space Launch System (SLS) Application-Structural AssessmentNASA is moving forward with the development of the next generation system of human spaceflight to meet the Nation's goals of human space exploration. To meet these goals, NASA is aggressively pursuing the development of an integrated architecture and capabilities for safe crewed and cargo missions beyond low-Earth orbit. Two important tenets critical to the achievement of NASA's strategic objectives are Affordability and Safety. The Space Launch System (SLS) is a heavy-lift launch vehicle being designed/developed to meet these goals. The SLS Block 1 configuration (Figure 1) will be used for the first Exploration Mission (EM-1). It utilizes existing hardware from the Space Shuttle inventory, as much as possible, to save cost and expedite the schedule. SLS Block 1 Elements include the Core Stage, "Heritage" Boosters, Heritage Engines, and the Integrated Spacecraft and Payload Element (ISPE) consisting of the Launch Vehicle Stage Adapter (LVSA), the Multi-Purpose Crew Vehicle (MPCV) Stage Adapter (MSA), and an Interim Cryogenic Propulsion Stage (ICPS) for Earth orbit escape and beyond-Earth orbit in-space propulsive maneuvers. When heritage hardware is used in a new application, it requires a systematic evaluation of its qualification. In addition, there are previously-documented Lessons Learned (Table -1) in this area cautioning the need of a rigorous evaluation in any new application. This paper will exemplify the systematic qualification/assessment efforts made to qualify the application of Heritage Solid Rocket Booster (SRB) hardware in SLS. This paper describes the testing and structural assessment performed to ensure the application is acceptable for intended use without having any adverse impact to Safety. It will further address elements such as Loads, Material Properties and Manufacturing, Testing, Analysis, Failure Criterion and Factor of Safety (FS) considerations made to reach the conclusion and recommendation.
Document ID
20180001125
Document Type
Conference Paper
Authors
Aggarwal, Pravin
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Booker, James N.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
February 12, 2018
Publication Date
January 8, 2018
Subject Category
Launch Vehicles And Launch Operations
Report/Patent Number
M17-6440
Meeting Information
AIAA Science and Technology Forum and Exposition (AIAA SciTech)(Kissimmee, FL)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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