Read Nastran output2 data block name and trailer.
tuple ((name, trailer, type)) –
Name of upcoming data block (upper case).
Data block trailer.
0 means table, 1 means matrix.
All outputs will be None for end-of-file.
OP2.rdop2nt()
pyyeti.nastran.op2.OP2.rdop2header
pyyeti.nastran.op2.OP2.rddrm2op2