Because the 2195 aluminum-lithium material of the super lightweight external tank (SLWT ET) has a lower toughness than the 2219 aluminum used in previous ET's, careful attention must be paid to stress concentrations. This report details the analysis performed on some of the stress concentrations in the orthogrid panels of the liquid hydrogen tank.
Analysis of Stress Concentration in the Dutton Groove Regions of the Super Lightweight External Tank
1995
36 pages
Report
No indication
English
Fuel & Propellant Tanks , Rocket Engines & Motors , Manned Spacecraft , Nonferrous Metals & Alloys , Aluminum , External tanks , Fatigue (Materials) , Fuel tanks , Grooves , Liquid hydrogen , Panels , Stress analysis , Stress concentration , Structural design , Design analysis , Machining , Space shuttle ascent stage , Space shuttle boosters , Toughness , Welded joints
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