使用 python 中的 abaqus 运行 abaqus inp 文件

Question

I am trying to run abaqus inp file and process it with abaqus from python and get the output. It is not working. How can it be done?

import os
import subprocess

inp = 'C:/Users/sel/Desktop/My work/Python Abaqus/New folder (2)/Job-1.inp'
abaqus = r'C:/SIMULIA/Abaqus/Commands/abq6145.bat'
subprocess.Popen("%s %s" % (abaqus, inp))

Answer 1

You can capture stdout and strerr of a subprocess through the run function of the subprocess module by setting the capture_output keyword argument to True . This should work.

inp = 'C:/Users/sel/Desktop/My work/Python Abaqus/New folder (2)/Job-1.inp'
abaqus = r'C:/SIMULIA/Abaqus/Commands/abq6145.bat'
cp = subprocess.run([abaqus, inp], capture_output=True)
cp.stdout

Answer 2

You're in the wrong directory and you're not specifying the job correctly. The correct command line syntax to start solving c:\\temp\\whatever.inp file is:

cd \temp
abaqus job=whatever

Answer 3

I think this way might help you:

First, prepare your .inp file (the initial simulation: mySim.inp)

Second, in a python script (let's call it RunSim.py) write:

from subprocess import check_output
check_output("abaqus job=mySim.inp double cpus=4 interactive", shell=True)

You can change cpus depending on your computer.

Third, add also this line:

check_output("abaqus cae noGUI=odb_reader.py", shell=True)

Forth, in the odb_reader.py, you should write a function to read the odb file and save the result a csv file. If you want to do an optimization, you can then open this csv file in the RunSim,py file and extracted the value that you want as the objective function.

So if you want to iteratively run RunSim.py file, you may need also to delete the scratch file after each iteration. You can use this:

os.remove("mySim.sim")  

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