Obsah

Quadrilaterals, BEAM6P6

Problem

Cyclic softening

Mesh

element type nodes
1 6 1 3 4 2 12 14 13 11
2 6 3 5 6 4 15 17 16 14
3 6 5 7 8 6 18 20 19 17
4 6 7 9 10 8 21 23 22 20

Boundary conditions

$u=0$ at nodes 2, 11
$u=v=0$ at node 1

Computation

The computation is executed with the following commands:

beam6p6.bat
rmd2 beam6p6.i1
rpd2 beam6p6.i2
srh2 beam6p6.i3
fefs beam6p6.i4
hpp2 beam6p6.iP
hpls beam6p6.iL
str2 beam6p6.i5

Input

beam6p6.i1
;  NELEM NNOD ITED  ...  KSS
IP   4    23    6   6*0  -1
;  CRIT SCALE THDEF
RP 1.01   1    0.01
XY N 1:10 X 2*0 2*0.25 2*0.5 2*0.75 2*1
          Y 5*(0 0.02)
EL E 1:4 N =A 1 3 4 2 =A =B 12 14 13 11 =B
           =2A =3B =4A =6B =6A =9B
EN
EN
beam6p6.i2
;  KREST
IP   1
; independent variable = cumulated plastic strain
IV 1 T 7 V 0 0.015 0.04
             ; E        α        ν       ρ
MP 1 T 1 I 1 V 3*2e11 V 3*1e-5 V 3*0.3 V 3*0
             ; σY                   QY
             V 380e6 680e6 1180e6 V 0 330e6 830e6
SV 1 T 9 V  400e6 0 0 ; σxx = 400 MPa
SV 2 T 9 V -400e6 0 0 ; σxx = -400 MPa

AS 1 /M 1
  /B 0 N 1 /B 0 C 1 N 2 11

AS 2
  /S 1 E 4 S2

AS 3
  /S 2 E 4 S2

EN
EN
beam6p6.i3
;  KREST
IP   1
EN
EN
beam6p6.i4
;  KREST
IP   1
EN
EN
beam6p6.iP
;  KREST NLC NCYC KMOD ...
IP   1    2    3    1  6*0
;  load case sequence
   2 3
EN
EN
beam6p6.iL
;  KMET KOUT NSUBI NITER NINT KTPR
IP   0    1    0     0     0    0
;  UTOL RTOL XTOL PENAL
RP   0    0    0    0
EN
EN
beam6p6.i5
;  KLC 0 KOUT ILC  ...  KPROB KGRAF
IP  3  0   1   6   6*0    2     2
EN
EN

Output

beam6p6.o5
;  KLC 0 KOUT ILC  ...  KPROB KGRAF                                             
IP  3  0   1   6   6*0    2     2                                               
EN                                                                              
EN                                                                              

      PLANE STRESS
                                                      1TH LOAD CASE

                                       DISPLACEMENTS
           NODE                U                   V
                              [m]                 [m]

              1       0.0000000E+00    0.0000000E+00
              2       0.0000000E+00    0.3679511E-04
              3      -0.1120101E-02    0.3360077E-13
              4      -0.1120101E-02    0.3679511E-04
              5      -0.2240202E-02    0.1203396E-12
              6      -0.2240202E-02    0.3679511E-04
              7      -0.3360303E-02    0.2414918E-12
              8      -0.3360303E-02    0.3679511E-04
              9      -0.4480404E-02    0.3236554E-12
             10      -0.4480404E-02    0.3679511E-04
             11       0.0000000E+00    0.1839755E-04
             12      -0.5600505E-03    0.8350377E-14
             13      -0.5600505E-03    0.3679511E-04
             14      -0.1120101E-02    0.1839755E-04
             15      -0.1680151E-02    0.7228554E-13
             16      -0.1680151E-02    0.3679511E-04
             17      -0.2240202E-02    0.1839755E-04
             18      -0.2800252E-02    0.1707754E-12
             19      -0.2800252E-02    0.3679511E-04
             20      -0.3360303E-02    0.1839755E-04
             21      -0.3920353E-02    0.3087228E-12
             22      -0.3920353E-02    0.3679511E-04
             23      -0.4480404E-02    0.1839755E-04




                                           STRESSES AT GAUSS POINTS



      IE       IGP     XG           YG                   SIG-X     SIG-Y    SIG-XY     SIG-Z      HMH      EPSP      DMG
                       [m]          [m]                  [MPa]     [MPa]     [MPa]     [MPa]     [MPa]      [-]      [%]

       1
                 1    0.28175E-01  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 2    0.12500E+00  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 3    0.22182E+00  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 4    0.28175E-01  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 5    0.12500E+00  0.10000E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 6    0.22182E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 7    0.28175E-01  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 8    0.12500E+00  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 9    0.22182E+00  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00

       2
                 1    0.27818E+00  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 2    0.37500E+00  0.22540E-02          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 3    0.47182E+00  0.22540E-02          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 4    0.27818E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 5    0.37500E+00  0.10000E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 6    0.47182E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 7    0.27818E+00  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 8    0.37500E+00  0.17746E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 9    0.47182E+00  0.17746E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00

       3
                 1    0.52818E+00  0.22540E-02          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 2    0.62500E+00  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 3    0.72182E+00  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 4    0.52818E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 5    0.62500E+00  0.10000E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 6    0.72182E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 7    0.52818E+00  0.17746E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 8    0.62500E+00  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 9    0.72182E+00  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00

       4
                 1    0.77818E+00  0.22540E-02          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 2    0.87500E+00  0.22540E-02          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 3    0.97182E+00  0.22540E-02          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 4    0.77818E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 5    0.87500E+00  0.10000E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 6    0.97182E+00  0.10000E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 7    0.77818E+00  0.17746E-01          -400.0      -0.0       0.0       0.1     400.0  0.1736E-01  0.00
                 8    0.87500E+00  0.17746E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00
                 9    0.97182E+00  0.17746E-01          -400.0      -0.0      -0.0       0.1     400.0  0.1736E-01  0.00

                                * END OF STR3 *
 TOTAL CPU: 00:00:00