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3.5 Material Section
The material section is defined by the Material element. This section defines all the materials and material parameters that are used in the model. A material is defined by the material child element. This element has two attributes: id, which specifies a number that is used to reference the material, and type, which specifies the type of the material. The material element can also have a third optional attribute called name, which can be used to identify the material by a text description. A material definition might look like this:
<material id="1" type="isotropic elastic">
Or, if the optional name attribute is present:
<material id="2" type="rigid body" name="femur">
The material parameters that have to be entered depend on the material type. A complete list of available materials is provided in Chapter 4↓.