Core Material is the main substance that makes up the Engineering Item - such as steel, aluminum, bronze, etc.

Covering Material is the material used to cover the item surface - such as paint, varnish, waxes, protective coatings, etc.

In the app, “Engineering Release Management,” you can view and apply both Core and Covering Materials on the Engineering Item in the following ways:

• Core Material - as a volume of material
  • The Core Material will be defined as a new Engineering Item that describes the consumption of the material required in the Engineering Definition
    
• Core Material - as the material that the Engineering Item is made of
  • The Core Material will be defined as information on the related Engineering Item
    
  • No new Engineering Item will be created
• Covering Material - as the material that the surface of the Engineering Item is covered with
  • The Covering Material will be defined as information on the related Engineering Item
  • No new Engineering Item will be created

All the materials mentioned above are created in 3DEXPERIENCE CATIA and/or SIMULIA native apps, and then reused in “Engineering Release” as mentioned in the above use cases.

Core Material - as a Volume of Material

The target of this definition is to describe the consumption of this material as part of the Engineering Definition (how much material is required in the product structure).

Example:

The oil that is required in the car structure definition:

• The oil consumption will be defined as a new Engineering Item in the Engineering Definition of the car
• The Core Material itself will then be defined as the “Core Material” of this new Engineering Item

When defining a Core Material as a “volume,” the material is displayed in the widget like this:

The following units are available for the materials definition:

L (Liter), dL (Deciliter), cL (Centiliter), mL (Milliliter)

(Currently only volume units are supported)

How to consume a volume of Core Material?

Use the option “New volume of material” from the root Engineering Item. This option will open the search function whereby users can search the relevant Core Material to add.

Once the material is selected, you will be prompted to define a quantity and unit for the selected Core Material:

A new Engineering Item is then created and linked to the root Item. This new Item has two material attributes: Declared Volume, Core Material.

To modify the “Declared Volume” of the Core Material, you can:

• Either select the “Usage view”  in the Datagrid view that displays all the Core Material consumptions and the quantity of each
  

Or

•  Select the “Reference view” in the Datagrid view that groups together the instances of each Core Material and lists the total quantity of each Core Material.
  

 Clicking on the “Quantity” enables modifying it.

Core Material - as the material of which the Engineering Item is made of

This is only a description of the materials that the Engineering Item is made of - such as wood, steel and, zinc. No new items are created in this definition.

This Core Material is applied on the Reference of the Engineering Item.

When you define a Core Material as such, the material will be displayed in the widget like this:

How to apply a Core Material on an Engineering Item

Select the Engineering Item you wish to define Core Materials for, and then click on the “Material” tab.

Next, use the “Apply” button to add new Core Materials.

Existing materials can be removed or replaced by other material if needed.

Covering Material

The target of this definition is to describe the material that covers the surface of the Engineering Item.

The Covering Material is available on either the Reference or the Instance of the Engineering Item.

How to apply a Covering Material on an Engineering Item?

Covering Material is defined in a similar way as Core Material: apply the material found in the search results:

Note:

The functionality to apply Covering Material on Instances is only available in 3DEXPERIENCE CATIA and not in the “Engineering Release” widget; this definition will then be displayed in the widget.

The attached video illustrates this process in detail.