FEAP Input file error, NEED HELP

[mohany]

I am new to write FEAP input file, I was doing the analysis on ANSYS platform. In my paraphrasing input file from ansys to feap, it shows me error. Could someone help me to check the error here?

[Prof. R.L. Taylor]

Post your input file

[mohany]

Here is my input file

[Prof. R.L. Taylor]

There are several commands that feap does not know and you have some misplaced commands too

1. Feap likes to have the input file start with an "i" or an "I" -- those starting with "P" are used for other options.

2. To debug the input it would be good to start with a smaller problem and use standard feap elements.  Once things work you can use your own material models.

3. There are some wrong command uses near the top: block, polar, inter (inter is for command entry interactively from the keyboard).

4. Feap correctly processes all the COOR and ELEM data - and plots the mesh correctly as far as i can tell - you may need to set a view point to better see the plot.

5. Feap does not recognize the data starting with "import' -- this may be a command you developed and appears to be specifying displacemts at nodes.

6. It is never good practice to add solution commands before you have ensured the mesh and loading are correct.

I attach a file that does the plot

[mohany]

Hi, Professor Taylor,
Thanks for your clear explanation, I will take the look of the feap manual on the input file.

Best

[mohany]

Hi, Professor Taylor,
If I want to add the specific displacement on the nodes in FEAP, what should I do. In ANSYS, I can use nodal name selection, but I am not sure whether there are such a command for this in FEAP.
Or Is that ok to let FEAP do the extruded mesh for my geometry input file?

Also, what is the command for solution?

Best regards
Mohan

[Prof. R.L. Taylor]

You need to study the User Manual on specifying what you want to do. It is searchable