TY - RPRT TI - Elastic-Plastic Nonlinear Response of a Space Shuttle External Tank Stringer: Stringer-Feet Imperfections and Assembly - Part 1 AU - Knight, Norman F., Jr. AU - Song, Kyongchan AU - Elliott, Kenny B. AU - Raju, Ivatury S. AU - Warren, Jerry E. PY - 2012 UR - https://ntrs.nasa.gov/citations/20120008186 ID - 20120008186 ER -