How to apply the self weight gravity loads ?

[Son_new]

Dear All,

What the input script should look like , If I intend to apply the self weight for frame element? I tried with the following for steel

Code: [Select]

Material, 1
ELAStic ISOTropic 2.039e10, 0.3
CROSs SECTion 4.265e-3, 6.572e-5, 3.301e-6 ,9.561e-8
REFErence VECTor or NODE or DIREction
density data 800.3801
body forces 0, 0, 1
But it seems that results are wrong,

Any help will be appreciated,

Regards,

[Prof. R.L. Taylor]

Are you just missing the 'frame' command after the 'material' one?  If you have it send a simple input file that does not work and we will help you more.