ICME 2013 HW4

< Back to ICME 2013 Course Overview

Objectives

• Run a multigrain crystal plasticity single finite element simulation.
• Calibrate macroscale BCJ Plasticity Internal State Variable (ISV) model
• Run 1 element finite element calculation.
• Validate Results.

Preparations

Step 1

• Follow the guide from homework 3 for a single grain crystal plasticity finite element simulation.
• Alter the inputs for 180 grains with random Euler angles.

Step 2

• Use the MSU Plasticity-Damage (DMG) model calibration tool to fit a stress-strain curve from crystal plasticity as demonstrated in class.
• Save the parameters.

Step 3

• Visit the Macroscale page and collect the user material (UMAT) and ABAQUS input file for aluminum in tension (implicit).
• Save these files into a new working directory.

Step 4

• Alter the ABAQUS input file with the parameters calibrated to the DMG model.

Running the Calculation

Step 1

• Open permissions on files

  chmod 755*

Step 2

• Enter the following software setup command in a terminal:

  swsetup abaqus

Step 3

• Submit the abaqus job either locally or to Raptor using the following command:

  abaqus job=NAME_OF_INPUT user=NAME_OF_UMAT

• Do not include the file extension (.inp) in the "NAME_OF_INPUT".