TY  - RPRT
TI  - Finite element analysis of structures in the plastic range
AU  - Armen, H., Jr.
AU  - Levine, H. S.
AU  - Pifco, A.
PY  - 1971
UR  - https://ntrs.nasa.gov/citations/19710009801
ID  - 19710009801
ER  -