Index to Common MACRo Phase Commands FEAP 7.1

Appendix D

 

Kinematic Outputs

Command Description Page
acceleration Print nodal accelerations (dynamics problems only) 223
displacement Print nodal displacements 240
velocity Print nodal velocities (dynamic problems only) 303

 

Miscellaneous

Command Description Page
eprint Print stiffness and load vector for last element in mesh.  This is useful during element development. 246
exit Exit MACRo phase, write restart file, and transfer control back to input file. 248
help Print list of some of the available commands 253
mesh Jump to MESH phase of program.  Return to MACRo phase with end command 265
plot Jump to Plot phase of program.  Return to MACRo phase with end command 275
quit Exit MACRo phase and transfer control back to input file 279
show Show a variety of diagnostics about the program 287

 

Output Control

Command Description Page
noprint Reduce amount of output printing 270
print Turn output printing on and off 276
tplot Set up lists for time history plots of displacements, velocities, acceleations, reactions, stresses, etc. 297

Problem Solution

 
Command Description Page
check Check mesh for node numbering order and attempt to reorder nodes if errors are found 232
batch Initiate MACRo commands from input file for "batch" operation 222
dt Set time step size for dynamic and quasi-static analysis 242
eigelement Compute eigenvectors and eigenvalues of last element in mesh.  Useful during element development 243
end Signal end of MACRo commands when in batch mode 245
interactive Initiate interactive MACRo phase from input file 222
form Compute the residual vector for the problem; i.e. the difference between the internal and external force vectors  -- the right hand side 250
geometric Compute a geometric stiffness matrix for use in eigenvalue analysis 252
help Produces a list of some of the available commands 253
history List previous commands and execute previous commands 254
indentity Form an identity matrix for eigenvalue analysis 256
initialize Set initial conditions for dynamic analysis 258
list Set up a list of node or element numbers for later use in output of values at the selected nodes or elements 260
loop Initiate a list of commands to loop over a set number of times 261
mass Compute a mass matrix for use in eigenvalue analysis 263
modal Time integrate dynamic problems using modal methods 266
next Signal end of loop 269
parameter Set parameter values or list values of parameters that have already been set 272
proportional Set time variations of external load vectors for dynamic and quasi-static problems 277
solve Solve linear FEM equations 288
subspace Compute system eigenvalues/vectors using the subspace iteration algorithm 290
tangent Compute FEM tangent matrix (symmetric problems) 291
time Increment time in dynamic and quasi-static problems 293
tol Set tolerance for iterative solutions in non-linear problems 295
transient Choose integration method for dynamic problems 299
utangent Compute FEM tangent matrix (un-symmetric problems) 302

Stress Information

 
Command Description Page
reactions Print nodal reactions 280
stress Print element/nodal stresses 289