TY  - RPRT
TI  - A failsafe analysis using NASTRAN's piecewise linear analysis and a nine node linear crack element
AU  - Wilkinson, R. F.
AU  - Kelley, J. W.
PY  - 1975
UR  - https://ntrs.nasa.gov/citations/19750023423
ID  - 19750023423
ER  -