*Heading
Truss modeled with matrices
*restart,write
*NODE
101,0.0
102,1.0
103,2.0
104,0.5,0.866,0.0
105,1.5,0.866,0.0
*ELEMENT,TYPE=T2D2, ELSET=FRAME
17,104,105
**Uncomment the following elements to test element based model
**11,101,102
**12,102,103
**13,101,104
**14,102,104
**15,102,105
**16,103,105
*SOLID SECTION,ELSET=FRAME,MATERIAL=STEEL
1.936E-5,
*MATERIAL,NAME=STEEL
*ELASTIC
200.E9,0.3
**The following lines give stiffness matrices for elements:
**MATRIX1-->elements 11, 13 and 14
**MATRIX2-->elements 12, 15 and 16
**Comment the *MATRIX INPUT and *MATRIX ASSEMBLE options to 
**test element based model
*MATRIX INPUT,NAME=MATRIX1,SCALE FACTOR=1.0
101,1,101,1,4.840063891514021e+006
101,2,101,2,2.904021295297156e+006
102,1,102,1,4.840063891514021e+006
102,2,102,2,2.904021295297156e+006
104,1,104,1,1.936127783028042e+006
104,2,104,2,5.808042590594312e+006
101,2,101,1,1.676686660102284e+006
**101,1,101,2,1.676686660102284e+006
102,1,101,1,-3.872000000000000e+006
**101,1,102,1,-3.872000000000000e+006
102,2,102,1,-1.676686660102284e+006
**102,1,102,2,-1.676686660102284e+006
104,1,101,1,-9.680638915140210e+005
**101,1,104,1,-9.680638915140210e+005
104,1,101,2,-1.676686660102284e+006
**101,2,104,1,-1.676686660102284e+006
104,1,102,1,-9.680638915140210e+005
**102,1,104,1,-9.680638915140210e+005
104,1,102,2,1.676686660102284e+006
**102,2,104,1,1.676686660102284e+006
104,2,101,1,-1.676686660102284e+006
**101,1,104,2,-1.676686660102284e+006
104,2,101,2,-2.904021295297156e+006
**101,2,104,2,-2.904021295297156e+006
104,2,102,1,1.676686660102284e+006
**102,1,104,2,1.676686660102284e+006
104,2,102,2,-2.904021295297156e+006
**102,2,104,2,-2.904021295297156e+006
*MATRIX INPUT,NAME=MATRIX2
102,1,102,1,4.840063891514021e+006
102,2,102,2,2.904021295297156e+006
103,1,103,1,4.840063891514021e+006
103,2,103,2,2.904021295297156e+006
105,1,105,1,1.936127783028042e+006
105,2,105,2,5.808042590594312e+006
**102,2,102,1,1.676686660102284e+006
102,1,102,2,1.676686660102284e+006
**103,1,102,1,-3.872000000000000e+006
102,1,103,1,-3.872000000000000e+006
**103,2,103,1,-1.676686660102284e+006
103,1,103,2,-1.676686660102284e+006
**105,1,102,1,-9.680638915140210e+005
102,1,105,1,-9.680638915140210e+005
**105,1,102,2,-1.676686660102284e+006
102,2,105,1,-1.676686660102284e+006
**105,1,103,1,-9.680638915140210e+005
103,1,105,1,-9.680638915140210e+005
**105,1,103,2,1.676686660102284e+006
103,2,105,1,1.676686660102284e+006
**105,2,102,1,-1.676686660102284e+006
102,1,105,2,-1.676686660102284e+006
**105,2,102,2,-2.904021295297156e+006
102,2,105,2,-2.904021295297156e+006
**105,2,103,1,1.676686660102284e+006
103,1,105,2,1.676686660102284e+006
**105,2,103,2,-2.904021295297156e+006
103,2,105,2,-2.904021295297156e+006
*MATRIX ASSEMBLE,STIFFNESS=MATRIX1
*MATRIX ASSEMBLE,STIFFNESS=MATRIX2
************************************
*STEP,PERTURBATION
10kN central load
*STATIC
*BOUNDARY
101,ENCASTRE
103,2
*CLOAD
102, 2, -10.E3
105, 1, 10.E3
*NODE PRINT
U, 
RF, 
*EL PRINT
S, 
*END STEP