#### 3.11.2.1. Definition of the Degradation Factor Field

The degradation factor fields are defined with Look-up Tables. The Model Properties dialog contains a Material Fields tab. In the Name column the drop-down menu shows a selection of field names which are available from Workbench Engineering Data. If Degradation Factor has been used to define one of the materials in the current composite analysis, you can choose it from the drop-down. In the Field column, any scalar look-up table column can be selected. If a scalar column is selected, the degradation factors are interpolated from that column to all finite element centroids upon update of the ACP-Pre system in Workbench. All downstream analysis systems can make use of this information. For more information, see Definition of General User-Defined Fields in ACP-Pre.

Figure : Model Properties - Material Fields

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