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--- wiki:sns:intactgh:materials [2023/10/17 11:17] – paul
+++ wiki:sns:intactgh:materials [2024/06/21 11:02] (current) – graham
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-Intact.Simulation for Grasshopper contains a variety of built-in engineering materials which can be picked from the Material Block. These materials are linear isotropic materials.  Isotropic materials possess the same mechanical properties regardless of orientation.  Linear materials have a proportional relationship between stress and strain.  Metals, plastics, and ceramics are examples of linear isotropic materials.
+Intact.Simulation for Grasshopper contains a variety of built-in engineering materials which can be picked from the Material Block. These materials are linear isotropic materials. Isotropic materials possess the same mechanical properties regardless of orientation. Linear materials have a proportional relationship between stress and strain.  Metals, plastics, and ceramics are examples of linear isotropic materials. **If you are running a thermal simulation, you need to use a thermal material block.**
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-Intact.Simulation for Grasshopper contains a variety of built-in orthotropic engineering materials which can be picked from the Orthotropic Material Block. Orthotropic materials are often used to represent composites, where the material properties along one axis are significantly different from the properties along the other axes.
+Intact.Simulation for Grasshopper contains a variety of built-in orthotropic engineering materials which can be picked from the Orthotropic Material Block. Orthotropic materials are often used to represent **composites and wood**, where the material properties along one axis are significantly different from the properties along the other axes.
 Right-clicking on the block will pop up a list from which one of the built-in materials may be selected.
-Orthotropic materials support an optional transform input, to arbitrarily rotate the axes along which the material properties are defined. Specifying a transform can be useful to simulate a composite where the fibers of the composite are oriented at 45° to the x-y axes.  The input is an affine Grasshopper Transform; the orthotropic material block will decompose the transform and apply only the rotation to the material property orientation.
+Orthotropic materials support an optional transform input, to arbitrarily rotate the axes along which the material properties are defined. Specifying a transform can be useful to simulate a composite where the fibers of the composite are oriented at varying angles relative to the global XYZ coordinate axes. The input is an affine Grasshopper Transform; the orthotropic material block will decompose the transform and apply only the rotation to the material property orientation.
+For more details on transformations and an example of obtaining/using transformation inputs see: [[wiki:sns:intactgh:beginner_ex_4|Beginner Example 4: Planar Orthotropic Materials: Transformation Workflow]]
+Also, see here for an example that demonstrates a simulation using an orthotropic material: [[wiki:sns:intactgh:beginner_ex_5|Beginner Example 5: Static Simulation of a Composite Motor Mount]]
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 ===== Custom Orthotropic Materials =====
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-Custom orthotropic materials can be created by using the custom orthotropic material block, which requires the material density, the elastic moduli in the x, y and z directions, the shear moduli in the xy, xz, and yx planes, and the Poisson ratio in the xy, xz, and yx planes. Similar to standard orthotropic materials, custom orthotropic materials support an optional transform input, to arbitrarily rotate the axes along which the material properties are defined.
+Custom orthotropic materials can be created by using the custom orthotropic material block, which requires the material density, the elastic moduli in the x, y and z directions, the shear moduli in the xy, xz, and yz planes, and the Poisson ratio in the xy, xz, and yz planes. Similar to standard orthotropic materials, custom orthotropic materials support an optional transform input, to arbitrarily rotate the axes along which the material properties are defined.
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