# Material data definition

 A material definition in Abaqus: specifies the behavior of a material and supplies all the relevant property data; can contain multiple material behaviors; is assigned a name, which is used to refer to those parts of the model that are made of that material; can have temperature and/or field variable dependence; can have solution variable dependence in Abaqus/Standard; and can be specified in a local coordinate system (Orientations), which is required if the material is not isotropic. The following topics are discussed:
 Related Topics About the material library Combining material behaviors In Other Guides *MATERIAL Creating materials

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