I-profile_cd.inp
**** proof of lateral buckling by nonlinear geometric calculation
**** example: TUHH STAHLBUA III BEULEN, TORSION, BIEGEDRILLKNICKEN p.33-37
**** Stahlbau III
*HEADING
Model: ltb_I-profile_cd
**** centric pressure:
**** lateral buckling: 4.385,0 ccx: 4.405,0
**** lateral buckling: 15.877,0 ccx: 15.186,0
**** torsional buckling: 10.427,0 ccx: 10.258,0
**** bending moment:
**** lateral torsional buckling: 1.502,0 ccx: 1.504,0
*INCLUDE, INPUT=all.msh
*INCLUDE, INPUT=refrotnode.msh
*INCLUDE, INPUT=sbound_01.nam
*INCLUDE, INPUT=sbound_02.nam
*INCLUDE, INPUT=sbound_01.sur
*INCLUDE, INPUT=sbound_02.sur
*INCLUDE, INPUT=refnode_01.nam
*INCLUDE, INPUT=refnode_02.nam
*INCLUDE, INPUT=rotnode_01.nam
*INCLUDE, INPUT=rotnode_02.nam
*COUPLING,REF NODE=11935,SURFACE=Ssbound_01,CONSTRAINT NAME=CN1
*DISTRIBUTING
1,1
2,2
3,3
4,4
5,5
6,6
*COUPLING,REF NODE=11937,SURFACE=Ssbound_02,CONSTRAINT NAME=CN2
*DISTRIBUTING
1,6
*MATERIAL, Name=steel
*ELASTIC
210000,0.3
*DENSITY
7.86E-9
*SOLID SECTION, Elset=Eall, Material=steel
*STEP
*BUCKLE
8
*BOUNDARY
Nrefnode_01,1,3,0
Nrefnode_01,6,6,0
Nrefnode_02,1,2,0
Nrefnode_02,6,6,0
****BUCKLING
*CLOAD
****CENTRIC PRESSURE
**Nrefnode_02,3,-1000
****CENTRIC PRESSURE
****BENDING MOMENT
Nrefnode_01,5, 1000000
Nrefnode_02,5,-1000000
****BENDING MOMENT
*NODE PRINT,NSET=Nsbound_01,totals=only
RF
*NODE PRINT,NSET=Nsbound_02,totals=only
RF
*NODE PRINT,NSET=Nrefnode_01,totals=only
RF
*NODE PRINT,NSET=Nrefnode_02,totals=only
RF
*NODE PRINT,NSET=Nrotnode_01,totals=only
RF
*NODE PRINT,NSET=Nrotnode_02,totals=only
RF
*NODE FILE
U
*EL FILE
S
*END STEP
I-profile_rb.inp
**** proof of lateral buckling by nonlinear geometric calculation
**** example: TUHH STAHLBUA III BEULEN, TORSION, BIEGEDRILLKNICKEN p.33-37
**** Stahlbau III
*HEADING
Model: ltb_I-profile_rb
**** centric pressure:
**** lateral buckling: 4.385,0 ccx: 4.381,0
**** lateral buckling: 15.877,0 ccx: 15.224,0
**** torsional buckling: 10.427,0 ccx: -,-
**** bending moment:
**** lateral torsional buckling: 1.502,0 ccx: 2.479,0
*INCLUDE, INPUT=all.msh
*INCLUDE, INPUT=refrotnode.msh
*INCLUDE, INPUT=sbound_01.nam
*INCLUDE, INPUT=sbound_02.nam
*INCLUDE, INPUT=refnode_01.nam
*INCLUDE, INPUT=refnode_02.nam
*INCLUDE, INPUT=rotnode_01.nam
*INCLUDE, INPUT=rotnode_02.nam
*RIGID BODY,NSET=Nsbound_01,REF NODE=11935,ROT NODE=11936
*RIGID BODY,NSET=Nsbound_02,REF NODE=11937,ROT NODE=11938
*MATERIAL, Name=steel
*ELASTIC
210000,0.3
*DENSITY
7.86E-9
*SOLID SECTION, Elset=Eall, Material=steel
*STEP
*BUCKLE
6
*BOUNDARY
Nrefnode_01,1,3,0
Nrotnode_01,3,3,0
Nrefnode_02,1,2,0
Nrotnode_02,3,3,0
****BUCKLING
*CLOAD
****CENTRIC PRESSURE
**Nrefnode_02,3,-1000
****CENTRIC PRESSURE
****BENDING MOMENT
Nrotnode_01,2, 1000000
Nrotnode_02,2,-1000000
****BENDING MOMENT
*NODE PRINT,NSET=Nsbound_01,totals=only
RF
*NODE PRINT,NSET=Nsbound_02,totals=only
RF
*NODE PRINT,NSET=Nrefnode_01,totals=only
RF
*NODE PRINT,NSET=Nrefnode_02,totals=only
RF
*NODE PRINT,NSET=Nrotnode_01,totals=only
RF
*NODE PRINT,NSET=Nrotnode_02,totals=only
RF
*NODE FILE
U
*EL FILE
S
*END STEP
I-profile_ck.inp
**** proof of lateral buckling by nonlinear geometric calculation
**** example: TUHH STAHLBUA III BEULEN, TORSION, BIEGEDRILLKNICKEN p.33-37
**** Stahlbau III
*HEADING
Model: ltb_I-profile_ck
**** centric pressure:
**** lateral buckling: 4.385,0 ccx: 4.381,0
**** lateral buckling: 15.877,0 ccx: 15.224,0
**** torsional buckling: 10.427,0 ccx: -,-
**** bending moment:
**** lateral torsional buckling: 1.502,0 ccx: 2.479,0
*INCLUDE, INPUT=all.msh
*INCLUDE, INPUT=refrotnode.msh
*INCLUDE, INPUT=sbound_01.nam
*INCLUDE, INPUT=sbound_02.nam
*INCLUDE, INPUT=sbound_01.sur
*INCLUDE, INPUT=sbound_02.sur
*INCLUDE, INPUT=refnode_01.nam
*INCLUDE, INPUT=refnode_02.nam
*INCLUDE, INPUT=rotnode_01.nam
*INCLUDE, INPUT=rotnode_02.nam
*COUPLING,REF NODE=11935,SURFACE=Ssbound_01,CONSTRAINT NAME=CN1
*KINEMATIC
1,3
1,3
*COUPLING,REF NODE=11937,SURFACE=Ssbound_02,CONSTRAINT NAME=CN2
*KINEMATIC
1,3
1,3
*MATERIAL, Name=steel
*ELASTIC
210000,0.3
*DENSITY
7.86E-9
*SOLID SECTION, Elset=Eall, Material=steel
*STEP
*BUCKLE
8
*BOUNDARY
Nrefnode_01,1,3,0
Nrefnode_01,6,6,0
Nrefnode_02,1,2,0
Nrefnode_02,6,6,0
****BUCKLING
*CLOAD
****CENTRIC PRESSURE
**Nrefnode_02,3,-1000
****CENTRIC PRESSURE
****BENDING MOMENT
Nrefnode_01,5, 1000000
Nrefnode_02,5,-1000000
****BENDING MOMENT
*NODE PRINT,NSET=Nsbound_01,totals=only
RF
*NODE PRINT,NSET=Nsbound_02,totals=only
RF
*NODE PRINT,NSET=Nrefnode_01,totals=only
RF
*NODE PRINT,NSET=Nrefnode_02,totals=only
RF
*NODE PRINT,NSET=Nrotnode_01,totals=only
RF
*NODE PRINT,NSET=Nrotnode_02,totals=only
RF
*NODE FILE
U
*EL FILE
S
*END STEP