Description: Material calibration is the process of deriving Abaqus material behaviors from sets of material test data. You can create material calibrations in three general steps:

• Create data sets by importing text files of material test data into Abaqus/CAE. You can customize these data by adding, deleting, or modifying individual rows. In addition, you can label the columns in a data set with quantity types to describe the data: material calibration data sets can be labeled as stress/strain, force/displacement, or axial strain/transverse strain.

• Process the contents of a data set using filters and tools to make the data more suitable for use in material modeling. The processing options enable you to scale the data along either axis, to smooth the curve of the data, and to truncate data points above a specified value along the X-axis. You can also convert a data set between nominal and true forms.

• Define calibration behaviors to derive elasticity- and plasticity-related parameters from the data. You can define elastic-isotropic calibration behaviors to define the Young's modulus and Poisson's ratio from material data, or you can define an elastic-plastic isotropic calibration behavior to define these elastic behaviors as well as the yield point and a set of data points defining material plasticity.

  Once you complete the selected calibration behaviors for your material test data, Abaqus/CAE adds the new material behaviors to your selected material definition.

As you import, process, and extract calibration behaviors from material data, Abaqus/CAE plots the selected material data in the viewport. Figure 7–1 shows an elastic-plastic-isotropic calibration in progress; the elastic and plastic material definitions are specified in the Elastic Plastic Isotropic dialog box, and they are also plotted in the viewport.

Property module:
   Model Tree: Calibrations container