Andreas Koutras
Please see Manual Vol II for the description of the MAT_197 keyword. The previous studies based on which the model was developed are mentioned in the manual. Here is a complete input deck.
*KEYWORD
*TITLE
$# title
isolator test
*CONTROL_OUTPUT
$# npopt neecho nrefup iaccop opifs ipnint ikedit iflush
0 0 0 0 0.0 0 100 0
*CONTROL_TERMINATION
$# endtim endcyc dtmin endeng endmas nosol
0.5 0 0.0 0.0 0.0 0
*CONTROL_TIMESTEP
$# dtinit tssfac isdo tslimt dt2ms lctm erode ms1st
0.0 0.0 0 0.0 0.0 10 0 0
*DATABASE_ELOUT
$# dt binary lcur ioopt option1 option2 option3 option4
1.00000E-9 3 0 1 0 0 0 0
*DATABASE_GLSTAT
$# dt binary lcur ioopt
1.00000E-9 3 0 1
*DATABASE_BINARY_D3PLOT
$# dt lcdt beam npltc psetid
0.02 0 0 0 0
*DATABASE_BINARY_D3THDT
$# dt lcdt beam npltc psetid
0.001 0 0 0 0
*DATABASE_BINARY_XTFILE
$# dt lcdt beam npltc psetid
0.001 0 0 0 0
*DATABASE_HISTORY_BEAM
$# id1 id2 id3 id4 id5 id6 id7 id8
1 2 10 0 0 0 0 0
*DATABASE_HISTORY_NODE
$# id1 id2 id3 id4 id5 id6 id7 id8
2 4 14 0 0 0 0 0
*BOUNDARY_PRESCRIBED_MOTION_NODE
$# nid dof vad lcid sf vid death birth
2 1 0 1 2.0 0 0.0 0.0
$# nid dof vad lcid sf vid death birth
4 1 0 1 2.0 0 0.0 0.0
$# nid dof vad lcid sf vid death birth
14 2 0 1 2.0 0 0.0 0.0
*BOUNDARY_SPC_NODE
$# nid cid dofx dofy dofz dofrx dofry dofrz
1 0 1 1 1 0 0 0
3 0 1 1 1 0 0 0
13 0 1 1 1 0 0 0
*PART
$# title
sliding isolator
$# pid secid mid eosid hgid grav adpopt tmid
1 1 10 0 0 0 0 0
*SECTION_BEAM
$# secid elform shrf qr/irid cst scoor nsm naupd
1 6 0.0 0 0 0.0 0.0 0
$# vol iner cid ca offset rrcon srcon trcon
0.125 10.0 0 0.0 0.0 0.0 0.0 0.0
*MAT_SEISMIC_ISOLATOR
$# mid ro a beta gamma dispy stiffv itype
10 2000.0 0.0 0.0 0.0 0.0051.000000E8 2
$# preload damp mx1 mx2 my1 my2 cde iextra
-100000.0 1.0 0.0 0.0 0.0 0.0 0.0 0
$# fmax delf afric radx rady radb stiffl stiffts
0.2 0.1 0.5 0.5 0.5 0.5 0.0 100000.0
$# forcey alpha stifft dfail fmaxyc fmaxxt fmaxyt ylock
0.0 0.0 0.01.00000E20 0.1 0.4 0.3 0.0
*PART
$# title
sliding isolator
$# pid secid mid eosid hgid grav adpopt tmid
2 2 2 0 0 0 0 0
*SECTION_BEAM
$# secid elform shrf qr/irid cst scoor nsm naupd
2 6 0.0 0 0 0.0 0.0 0
$# vol iner cid ca offset rrcon srcon trcon
0.125 10.0 0 0.0 0.0 0.0 0.0 0.0
*MAT_SEISMIC_ISOLATOR
$# mid ro a beta gamma dispy stiffv itype
2 2000.0 0.0 0.0 0.0 0.0051.000000E8 1
$# preload damp mx1 mx2 my1 my2 cde iextra
100000.0 1.0 0.0 0.0 0.0 0.0 0.0 0
$# fmax delf afric radx rady radb stiffl stiffts
$# forcey alpha stifft dfail fmaxyc fmaxxt fmaxyt ylock
30000.0 0.05 0.0 0.15 0.0 0.0 0.0 0.0
*PART
$# title
sliding isolator with radii
$# pid secid mid eosid hgid grav adpopt tmid
10 1 10 0 0 0 0 0
*MAT_SEISMIC_ISOLATOR
$# mid ro a beta gamma dispy stiffv itype
1 2000.0 0.0 0.0 0.0 0.0051.000000E8 0
$# preload damp mx1 mx2 my1 my2 cde iextra
100000.0 1.0 0.0 0.0 0.0 0.0 0.0 0
$# fmax delf afric radx rady radb stiffl stiffts
0.2 0.1 0.51.00000E201.00000E20 0.15 0.0 0.0
$# forcey alpha stifft dfail fmaxyc fmaxxt fmaxyt ylock
*DEFINE_CURVE
$# lcid sidr sfa sfo offa offo dattyp lcint
1 0 1.0 1.0 0.0 0.0 0 0
$# a1 o1
0.0 0.0124675
0.01 0.0247404
0.02 0.0487071
0.03 0.0711447
0.04 0.0913334
0.05 0.1086065
0.06 0.1223659
0.07 0.1320968
0.08 0.1373802
0.09 0.1379039
0.1 0.1334708
0.11 0.1240047
0.12 0.1095542
0.13 0.0902932
0.14 0.0665189
0.15 0.0386478
0.16 0.0072075
0.17 -0.0271721
0.18 -0.063771
0.19 -0.1017936
0.2 -0.1403845
0.21 -0.1786451
0.22 -0.2156532
0.23 -0.2504832
0.24 -0.2822231
0.25 -0.3099978
0.26 -0.3329865
0.27 -0.3504426
0.28 -0.3617117
0.29 -0.3662454
0.3 -0.363619
0.31 -0.3535422
0.32 -0.3358672
0.33 -0.3105978
0.34 -0.2778943
0.35 -0.2380725
0.36 -0.1916015
0.37 -0.139102
0.38 -0.0813353
0.39 -0.0191923
0.4 0.0463177
0.41 0.1140861
0.42 0.1829218
0.43 0.2515737
0.44 0.3187509
0.45 0.3831463
0.46 0.4434655
0.47 0.4984455
0.48 0.5468789
0.49 0.5876487
0.5 0.6197393
0.51 0.6422606
0.52 0.6544738
0.53 0.6558064
0.54 0.6458641
0.55 0.6244434
0.56 0.591545
0.57 0.5473727
0.58 0.4923393
0.59 0.4270651
0.6 0.3523684
0.61 0.2692563
0.62 0.1789151
0.63 0.0826902
0.64 -0.0179328
0.65 -0.1213527
0.66 -0.2258726
0.67 -0.3297366
0.68 -0.4311535
0.69 -0.5283228
0.7 -0.619478
0.71 -0.702908
0.72 -0.7769905
0.73 -0.8402337
0.74 -0.8912858
0.75 -0.9289663
0.76 -0.952306
0.77 -0.9605515
0.78 -0.9531898
0.79 -0.9299572
0.8 -0.8908639
0.81 -0.8361805
0.82 -0.7664419
0.83 -0.6824595
0.84 -0.5852981
0.85 -0.4762676
0.86 -0.3569097
0.87 -0.228967
0.88 -0.0943632
0.89 0.0448213
0.9 0.1863884
0.91 0.3280546
0.92 0.4674909
0.93 0.6023555
0.94 0.730331
0.95 0.8491764
0.96 0.9567523
0.97 1.051062
0.98 1.130302
0.9899999 1.192877
1.0 1.237424
1.01 1.262866
1.02 1.268421
1.03 1.253614
1.04 1.218297
1.05 1.162667
1.06 1.08725
1.07 0.9928992
1.08 0.8808043
1.09 0.7524664
1.1 0.6096797
1.11 0.4544985
1.12 0.2892218
1.13 0.1163528
1.14 -0.0614402
1.15 -0.2413633
1.16 -0.4205388
1.17 -0.5960604
1.18 -0.7650293
1.19 -0.9246012
1.2 -1.072045
1.21 -1.204779
1.22 -1.320428
1.23 -1.416848
1.24 -1.492172
1.25 -1.544853
1.26 -1.573685
1.27 -1.577829
1.28 -1.556835
1.29 -1.510652
1.3 -1.439637
1.31 -1.344552
1.32 -1.226564
1.33 -1.087215
1.34 -0.9284422
1.35 -0.7525008
1.36 -0.5619513
1.37 -0.3596444
1.38 -0.1486534
1.39 0.0677653
1.4 0.2862203
1.41 0.503241
1.42 0.7153339
1.43 0.9190338
1.44 1.110965
1.45 1.287884
1.46 1.446777
1.47 1.58486
1.48 1.699621
1.49 1.788922
1.5 1.851001
1.51 1.884505
1.52 1.888523
1.53 1.862606
1.54 1.806777
1.55 1.721542
1.56 1.607884
1.57 1.467253
1.58 1.301542
1.59 1.113094
1.6 0.9046277
1.61 0.6791924
1.62 0.4401874
1.63 0.1912514
1.64 -0.0637748
1.65 -0.3209057
1.66 -0.5760735
1.67 -0.8251921
1.68 -1.064226
1.69 -1.289256
1.7 -1.496522
1.71 -1.682545
1.72 -1.844126
1.73 -1.978383
1.74 -2.082876
1.75 -2.155611
1.76 -2.19507
1.77 -2.200247
1.78 -2.170676
1.79 -2.106436
1.8 -2.008162
1.81 -1.877037
1.82 -1.714779
1.83 -1.523614
1.84 -1.306282
1.85 -1.065946
1.86 -0.8061435
1.87 -0.5308037
1.88 -0.2441282
1.89 0.0494592
1.9 0.3453772
1.91 0.6389602
1.92 0.9255307
1.93 1.200473
1.94 1.459311
1.95 1.697764
1.96 1.911873
1.97 2.098002
1.98 2.252895
1.99 2.37379
2.0 2.425419
*DEFINE_CURVE
$# lcid sidr sfa sfo offa offo dattyp lcint
2 0 1.0 1.0 0.0 0.0 0 0
$# a1 o1
0.0 0.0992198
0.01 0.0968912
0.02 0.0899663
0.03 0.0786253
0.04 0.0631646
0.05 0.0439901
0.06 0.0216081
0.07 -0.0033857
0.08 -0.0303195
0.09 -0.0584597
0.1 -0.0870282
0.11 -0.1152189
0.12 -0.1422164
0.13 -0.1672145
0.14 -0.189435
0.15 -0.2081453
0.16 -0.2226763
0.17 -0.2324389
0.18 -0.2369382
0.19 -0.2357872
0.2 -0.2287181
0.21 -0.2155891
0.22 -0.1963926
0.23 -0.1712584
0.24 -0.1404528
0.25 -0.1043776
0.26 -0.0635654
0.27 -0.0186708
0.28 0.0295398
0.29 0.0802002
0.3 0.1323619
0.31 0.1850094
0.32 0.2370792
0.33 0.2874808
0.34 0.3351198
0.35 0.3789167
0.36 0.4178285
0.37 0.4508764
0.38 0.4771603
0.39 0.4958798
0.4 0.5063592
0.41 0.5080559
0.42 0.5005758
0.43 0.4836938
0.44 0.457352
0.45 0.4216688
0.46 0.3769473
0.47 0.3236664
0.48 0.2624807
0.49 0.1942149
0.5 0.1198486
0.51 0.0405044
0.52 -0.0425673
0.53 -0.1280104
0.54 -0.2143847
0.55 -0.3001908
0.56 -0.3838923
0.57 -0.4639466
0.58 -0.5388311
0.59 -0.6070736
0.6 -0.667276
0.61 -0.7181434
0.62 -0.7585106
0.63 -0.7873634
0.64 -0.8038644
0.65 -0.8073688
0.66 -0.7974395
0.67 -0.7738709
0.68 -0.7366809
0.69 -0.68612
0.7 -0.622687
0.71 -0.5471095
0.72 -0.4603426
0.73 -0.3635618
0.74 -0.2581379
0.75 -0.1456236
0.76 -0.0277315
0.77 0.0936934
0.78 0.2167022
0.79 0.3392737
0.8 0.4593518
0.81 0.5748724
0.82 0.6837969
0.83 0.7841602
0.84 0.8740952
0.85 0.9518647
0.86 1.01591
0.87 1.064863
0.88 1.097567
0.89 1.113132
0.9 1.110925
0.91 1.090596
0.92 1.052102
0.93 0.9956905
0.94 0.9219074
0.95 0.8316089
0.96 0.7259395
0.97 0.6063173
0.98 0.4744244
0.9899999 0.3321757
1.0 0.1816883
1.01 0.0252646
1.02 -0.1346563
1.03 -0.2955328
1.04 -0.4547575
1.05 -0.6097081
1.06 -0.7577829
1.07 -0.8964413
1.08 -1.023255
1.09 -1.135954
1.1 -1.232452
1.11 -1.310889
1.12 -1.369676
1.13 -1.407514
1.14 -1.423427
1.15 -1.416777
1.16 -1.387282
1.17 -1.335041
1.18 -1.260514
1.19 -1.164525
1.2 -1.048272
1.21 -0.9132974
1.22 -0.7614758
1.23 -0.5949875
1.24 -0.416274
1.25 -0.228023
1.26 -0.033116
1.27 0.1654138
1.28 0.364428
1.29 0.5607324
1.3 0.7511295
1.31 0.9324694
1.32 1.101699
1.33 1.255911
1.34 1.392428
1.35 1.508793
1.36 1.602823
1.37 1.672699
1.38 1.716949
1.39 1.734495
1.4 1.724677
1.41 1.687264
1.42 1.622467
1.43 1.53094
1.44 1.413778
1.45 1.272492
1.46 1.109031
1.47 0.9257088
1.48 0.7251624
1.49 0.5103801
1.5 0.2846035
1.51 0.0512921
1.52 -0.1859264
1.53 -0.4233186
1.54 -0.6570964
1.55 -0.8834814
1.56 -1.09877
1.57 -1.299388
1.58 -1.481936
1.59 -1.643302
1.6 -1.780653
1.61 -1.891472
1.62 -1.973677
1.63 -2.025612
1.64 -2.04608
1.65 -2.034372
1.66 -1.990286
1.67 -1.914137
1.68 -1.806753
1.69 -1.669472
1.7 -1.504115
1.71 -1.313006
1.72 -1.098883
1.73 -0.8648539
1.74 -0.6144276
1.75 -0.3513958
1.76 -0.0797928
1.77 0.1961628
1.78 0.4721385
1.79 0.7437512
1.8 1.006642
1.81 1.256539
1.82 1.489332
1.83 1.701127
1.84 1.888361
1.85 2.047802
1.86 2.176588
1.87 2.272358
1.88 2.33325
1.89 2.357924
1.9 2.345608
1.91 2.296108
1.92 2.209822
1.93 2.087733
1.94 1.931406
1.95 1.742954
1.96 1.525059
1.97 1.280872
1.98 1.013967
1.99 0.7283506
2.0 0.5813887
*DEFINE_CURVE
$# lcid sidr sfa sfo offa offo dattyp lcint
10 0 1.0 1.0 0.0 0.0 0 0
$# a1 o1
0.0 9.9999997474e-05
10.0 9.9999997474e-05
*ELEMENT_BEAM
$# eid pid n1 n2 n3 rt1 rr1 rt2 rr2 local
1 1 1 2 0 0 0 0 0 2
2 2 3 4 0 0 0 0 0 2
10 10 13 14 0 0 0 0 0 2
*NODE
$# nid x y z tc rc
1 0.0 0.0 0.0 0 0
2 0.0 0.0 0.0 0 0
3 0.2497409 0.0 0.0 0 0
4 0.2497409 0.0 0.0 0 0
13 0.5 0.0 0.0 0 0
14 0.5 0.0 0.0 0 0
*END
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