Model Geometry

The model geometry section of the ABAQUS input file is preceded by the following comments:

**
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** MODEL GEOMETRY *
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**

FEMGEN will generate a finite element mesh of nodes and geometric element types. These geometric element types are related to the ABAQUS element names via an element variant number. The element variant mappings for ABAQUS may be displayed by using the FEMGEN command 'UTILITY TABULATE FE ABAQUS', and these mappings are shown in tables 2.1 to 2.5. In addition, the user can now set their own default ABAQUS element variants by defining them in a FEMGV resource file (see the FEMGV Users Manual for more details).

Element variants are assigned using the command 'MESHING TYPES part ELTYPE variantno'. The variant number is optional and the default is 1. It is also possible to specify an element variant by using its name directly, i.e. 'MESHING TYPES part CPS8R'.

'*NODE' cards are generated for all nodes in the model. Nodal coordinates are output in the global cartesian system, regardless of the system in which the model was defined in FEMGEN.

'*ELEMENT' cards are generated for all elements in the model. Elements are grouped into sets, one set per FEMGEN part, where the set name is equal to the part name. The automatic generation of ABAQUS element sets for every FEMGEN geometric part can be switched off by setting the resource *.model.element_set : NO (see Table 1.1).

The jacobian (or sense) of all elements is checked by the interface and corrected where necessary. The interface also re-numbers the elements according to the ABAQUS conventions. For models where one or more nodes lie outside the X-Y plane, the interface will not perform a jacobian check on TR3, TR6, QU4, QU8 and QU9 elements.

All nodes in the model or the whole geometry (i.e. all nodes and elements) can be written to a separate ABAQUS input file. This can be done by setting the resource *.model.include to the required option (NONE/NODES/GEOM) or by selecting this option in the dialogue session (see Sections 1.3 and 1.4). The name of this additional file will take the name of the main ABAQUS input file ('.inp') but with the extension '.nod' for the nodes (NODES) or the extension '.geo' for the geometry (GEOM). In the default case (option NONE), only one ABAQUS input file is created.

Eltype Abaqus Beam Element Variants

BE2 1 = DSAX1 2 = SAX1 3 = AC1D2 4 = C1D2 5 = C1D2H

6 = C1D2T 7 = DC1D2 8 = B21 9 = B21H 10 = B23

11 = B23H 12 = B31 13 = B31H 14 = B33 15 = B33H

16 = B34 17 = PIPE21 18 = PIPE21H 19 = PIPE31 20 = PIPE31H

21 = ASI2 22 = ASI2A 23 = INTER1 24 = INTER1T 25 = DINTER1

26 = ISL21 27 = ISL21A 28 = ISL31 29 = ISL31A 30 = IRS21

31 = IRS21A 32 = IRS31 33 = RIG-SURF 34 = SL-LINE 35 = MASS2

36 = SPRINGA 37 = SPRING2 38 = DASHPOTA 39 = DASHPOT2 40 = JOINTC

41 = DCC1D2 42 = DCC1D2D 43 = C1D2E 44 = DCCAX2 45 = DCCAX2D

46 = B31OS 47 = B31OSH 48 = SAXA1N 49 = INTER1P 50 = ISL21T

51 = ISL21AT 52 = F2D2 53 = FAX2 54 = FLINK 55 = RIGID2

56 = T2D2 57 = T2D2H 58 = T3D2 59 = T3D2H 60 = T2D2T

61 = T3D2T 62 = T2D2E 63 = T3D2E 64 = R2D2 65 = DC1D2E

66 = MAX1 67 = MGAX1 68 = RAX2 69 = RB2D2 70 = RB3D2

71 = FRAME2D 72 = FRAME3D

BE3 1 = DSAX2 2 = SAX2 3 = SAX2T 4 = AC1D3 5 = C1D3

6 = C1D3H 7 = C1D3T 8 = DC1D3 9 = B22 10 = B22H

11 = B32 12 = B32H 13 = PIPE22 14 = PIPE22H 15 = PIPE32

16 = PIPE32H 17 = ASI3 18 = ASI3A 19 = ISL22 20 = ISL22A

21 = ISL32 22 = ISL32A 23 = IRS22 24 = IRS22A 25 = IRS32

26 = SL-LINE 27 = C1D3E 28 = B32OS 29 = B32OSH 30 = SAXA2N

31 = ISL22T 32 = ISL22AT 33 = T2D3 34 = T2D3H 35 = T3D3

36 = T3D3H 37 = T2D3T 38 = T3D3T 39 = T2D3E 40 = T3D3E

41 = DC1D3E 42 = MAX2 43 = MGAX2

 

Eltype Abaqus First Order Plate/Shell Element Variants

TR3 1 = CPE3 2 = CPE3H 3 = CPS3 4 = DC2D3 5 = M3D3

6 = CAX3 7 = CAX3H 8 = DCAX3 9 = STRI3 10 = STRI35

11 = IRS3 12 = RIG-SURF 13 = CPE3E 14 = CPS3E 15 = CAX3E

16 = S3RF 17 = F3D3 18 = RIGID3 19 = R3D3 20 = S3R

21 = DC2D3E 22 = DCAX3E 23 = S3 24 = DS3 25 = S3RS

26 = CGPE5 27 = CGPE5H 28 = CGAX3 29 = CGAX3H 30 = CGAX3T 31 = CGAX3HT

QU4 1 = AC2D4 2 = CPE4 3 = CPE4H 4 = CPE4R 5 = CPE4RH

6 = CPS4 7 = CPS4R 8 = DC2D4 9 = M3D4 10 = M3D4R

11 = ACAX4 12 = CAX4 13 = CAX4H 14 = CAX4R 15 = CAX4RH

16 = DCAX4 17 = DS4 18 = S4R 19 = S4R5 20 = ASI4

21 = CAX4T 22 = CAX4HT 23 = CAXA4N 24 = CAXA4RN 25 = CPE4T

26 = CPE4HT 27 = CPS4T 28 = INTER2 29 = INTER2T 30 = INTER2A

31 = INTER2AT 32 = DINTER2 33 = DINTER2A 34 = IRS4 35 = CPE4I

36 = CPE4IH 37 = CPS4I 38 = CPS4IH 39 = DCC2D4 40 = DCC2D4D

41 = CPE4E 42 = CPS4E 43 = CAX4I 44 = CAX4IH 45 = DCCAX4

46 = DCCAX4D 47 = CAX4E 48 = CAXA4HN 49 = CAXA4RHN 50 = S4RF

51 = CINPE4 52 = CINPS4 53 = CINAX4 54 = F3D4 55 = RIGID4

56 = R3D4 57 = DC2D4E 58 = DCAX4E 59 = S4 60 = S4RS

61 = S4RSW 62 = CAX4P 63 = CAX4PH 64 = CPE4P 65 = CPE4PH

66 = CGPE6 67 = CGPE6H 68 = CGPE6I 69 = CGPE6IH 70 = CGPE6R

71 = CGPE6RH 72 = CGAX4 73 = CGAX4H 74 = CGAX4R 75 = CGAX4RH

76 = CGAX4T 77 = CGAX4HT

 

Eltype Abaqus Second Order Plate/Shell Element Variants

TR6 1 = CPE6 2 = CPE6H 3 = CPS6 4 = DC2D6 5 = M3D6

6 = CAX6 7 = CAX6H 8 = DCAX6 9 = STRI65 10 = CPE8R

11 = CPE6E 12 = CPS6E 13 = CAX6E 14 = DC2D6E 15 = DCAX6E

16 = CPS6M 17 = CPE6M 18 = CPE6MH 19 = CAX6M 20 = CAX6MH

21 = DS6 22 = CGPE8 23 = CGPE8H 24 = CGAX6 25 = CGAX6H

QU8 1 = AC2D8 2 = CPE8 3 = CPE8H 4 = CPE8P 5 = CPE8PH

6 = CPE8R 7 = CPE8RH 8 = CPE8RP 9 = CPE8RPH 10 = CPE8RT

11 = CPE8T 12 = CPS8 13 = CPS8R 14 = CPS8RT 15 = CPS8T

16 = DC2D8 17 = M3D8 18 = M3D8R 19 = ACAX8 20 = CAX8

21 = CAX8H 22 = CAX8P 23 = CAX8PH 24 = CAX8R 25 = CAX8RH

26 = CAX8RP 27 = CAX8RPH 28 = CAX8RT 29 = CAX8T 30 = DCAX8

31 = DS8 32 = S8R 33 = S8R5 34 = S8RT 35 = ASI8

36 = CAX8HT 37 = CAX8RHT 38 = CAXA8N 39 = CAXA8RN 40 = CPE8HT

41 = CPE8RHT 42 = INTER3 43 = INTER3A 44 = INTER3T 45 = INTER3AT

46 = DINTER3 47 = DINTER3A 48 = IRS9 49 = CPE8E 50 = CPE8RE

51 = CPS8E 52 = CPS8RE 53 = CAX8E 54 = CAX8RE 55 = CAXA8HN

56 = CAXA8RHN 57 = CAXA8PN 58 = CAXA8RPN 59 = INTER3P 60 = INTER3AP

61 = CINPE5R 62 = CINPS5R 63 = CINAX5R 64 = DC2D8E 65 = DCAX8E

66 = CGPE10 67 = CGPE10H 68 = CGPE10R 69 = CGPE10RH 70 = CGAX8

71 = CGAX8H 72 = CGAX8R 73 = CGAX8RH 74 = CGAX8T 75 = CGAX8HT

76 = CGAX8RT 77 = CGAX8RHT

QU9 1 = M3D9 2 = M3D9R 3 = S9R5 4 = IRS9

 

Eltype Abaqus Brick Element Variants

TE4 1 = C3D4 2 = C3D4H 3 = C3D4E 4 = DC3D4 5 = DC3D4E

PE6 1 = C3D6 2 = C3D6H 3 = DC3D6 4 = C3D6E 5 = DC3D6E

HE8 1 = AC3D8 2 = C3D8 3 = C3D8H 4 = C3D8R 5 = C3D8RH

6 = DC3D8 7 = C3D8T 8 = C3D8HT 9 = INTER4 10 = INTER4T

11 = DINTER4 12 = C3D8I 13 = C3D8IH 14 = DCC3D8 15 = DCC3D8D

16 = C3D8E 17 = CIN3D8 18 = DC3D8E 19 = C3D8P 20 = C3D8PH

TE10 1 = C3D10 2 = C3D10H 3 = C3D10E 4 = DC3D10 5 = DC3D10E

6 = C3D10M 7 = C3D10MH

PE15 1 = C3D15 2 = C3D15H 3 = DC3D15 4 = C3D20R 5 = C3D15V

6 = C3D15VH 7 = C3D15E 8 = DC3D15E

HE20 1 = AC3D20 2 = C3D20 3 = C3D20H 4 = C3D20P 5 = C3D20PH

6 = C3D20R 7 = C3D20RH 8 = C3D20RP 9 = C3D20RPH 10 = C3D20RT

11 = C3D20T 12 = DC3D20 13 = C3D20RHT 14 = C3D20HT 15 = INTER8

16 = INTER8T 17 = DINTER8 18 = C3D27 19 = C3D27H 20 = C3D27R

21 = C3D27RH 22 = INTER9 23 = C3D20E 24 = C3D20RE 25 = CIN3D12R 26 = DC3D20E

HE27 1 = INTER9

 

Eltype Abaqus Point Element Variants

P-EL 1 = MASS 2 = MASS1 3 = ROTARYI 4 = SPRING1 5 = DASHPOT1

6 = ASI1 7 = P-START 8 = RB-REF 9 = CAV-REF 10 = NODE-GEN

11 = DCOUP2D 12 = DCOUP3D