Hi,

if you have the nodal coordinates as comma separated list like

node number, x, y,z   e.g.

1, 0.0, 1.0, 2.0

2, 0.0, 1.0, 3.0

...

you can directly write the nodes (and all other commands) into a file with the ending .inp using the command *NODE e.g.

*NODE

1, 0.0, 1.0, 2.0

2, 0.0, 1.0, 3.0

If you want to generate incremental nodes along a line use the *NGEN command (for details see the Keywords Reference Guide).

For elements use the *ELEMENT and *ELGEN (element generation) commands respectively.

*ELGEN offers some options regarding the incrementation in node and element numbering. You have to consider that you will use *ELGEN when you number the nodes (for details see the Keywords Reference Guide). *ELGEN requires only a master element e.g. a  2-noded beam

*ELEMENT, TYP=B12, ELSET=mybeams

element  number, first node, second node

******

You can inport .inp files into ABAQUS CAE to check if your definitions are correct.

Best regards,

Melanie

In the CAE environment, go to the Mesh module, click on the Mesh menu and select "Edit...", you can create or edit nodes, elements, and so on.

Hi,

Is it possible for you to use ANSYS? There you only need to use the command n,x,y,z to create a node at the specified coordinates. If you have set up the model in APDL (Ansys parametric design language) you can save the cdb file and import it to Abaqus. I am sure there is also a way in Abaqus but I am unfortunately not familiar with the modeling of beams.

Best regards,

Actually i am trying to model a nanotube with defects so when i create node in ANSYS, (there are above 500 coordinates ) and in APDL it become difficult to join them by beam elements (lines with beam properties)

Hi,

if you have the nodal coordinates as comma separated list like

node number, x, y,z   e.g.

1, 0.0, 1.0, 2.0

2, 0.0, 1.0, 3.0

...

you can directly write the nodes (and all other commands) into a file with the ending .inp using the command *NODE e.g.

*NODE

1, 0.0, 1.0, 2.0

2, 0.0, 1.0, 3.0

If you want to generate incremental nodes along a line use the *NGEN command (for details see the Keywords Reference Guide).

For elements use the *ELEMENT and *ELGEN (element generation) commands respectively.

*ELGEN offers some options regarding the incrementation in node and element numbering. You have to consider that you will use *ELGEN when you number the nodes (for details see the Keywords Reference Guide). *ELGEN requires only a master element e.g. a  2-noded beam

*ELEMENT, TYP=B12, ELSET=mybeams

element  number, first node, second node

******

You can inport .inp files into ABAQUS CAE to check if your definitions are correct.

Best regards,

Melanie

Thank you sir