wiki:sns:snspro:using_wood_materials
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wiki:sns:snspro:using_wood_materials [2017/07/13 14:25] – claire | wiki:sns:snspro:using_wood_materials [2023/12/13 13:43] (current) – [Related Videos] michael | ||
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====== Using Wood Materials ====== | ====== Using Wood Materials ====== | ||
- | Scan& | + | Scan& |
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+ | **Important Note:** The material coordinate system convention used by Scan& | ||
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- | **Important Note:**The material coordinate system convention used by Scan& | ||
===== Wood Material Tab ===== | ===== Wood Material Tab ===== | ||
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* [Specify] | * [Specify] | ||
* [Guide] | * [Guide] | ||
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The [Rift Sawn] and [Flat Sawn] options use the principal volume moments of inertia of each component to identify the directions for axis 1, 2, and 3 of the wood coordinate system. When the principal moments are indistinct, the user is prompted to select the origin and axis directions manually. The [Specify] and [Guide] options allow arbitrary grain orientations to be specified by choosing points or geometry to guide the coordinate system creation. Use of each of these options is described below. | The [Rift Sawn] and [Flat Sawn] options use the principal volume moments of inertia of each component to identify the directions for axis 1, 2, and 3 of the wood coordinate system. When the principal moments are indistinct, the user is prompted to select the origin and axis directions manually. The [Specify] and [Guide] options allow arbitrary grain orientations to be specified by choosing points or geometry to guide the coordinate system creation. Use of each of these options is described below. | ||
- | ===== Rift Sawn ===== | + | ==== Rift Sawn ==== |
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Use the [Rift] button to point the wood grain (axis 1) along the component' | Use the [Rift] button to point the wood grain (axis 1) along the component' | ||
- | ===== Flat Sawn ===== | + | [[#Using Wood Materials|Back to Top]] |
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+ | ==== Flat Sawn ==== | ||
The image below shows the material coordinate system for flat-sawn wood. | The image below shows the material coordinate system for flat-sawn wood. | ||
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The [Flat] button aligns the wood grain (axis 1) along the component' | The [Flat] button aligns the wood grain (axis 1) along the component' | ||
- | ===== Specify Grain Direction | + | ==== Specify Grain Direction ==== |
Grain direction can be specified manually for cases where the desired grain direction is not aligned with the principal moments, or the directions of the principal moments are indistinct. See the following figure for reference: | Grain direction can be specified manually for cases where the desired grain direction is not aligned with the principal moments, or the directions of the principal moments are indistinct. See the following figure for reference: | ||
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- Last, select a point in the radial direction (direction of wood growth) - point 3 in the figure above. | - Last, select a point in the radial direction (direction of wood growth) - point 3 in the figure above. | ||
- | ===== Guided Grain Direction | + | [[#Using Wood Materials|Back to Top]] |
+ | |||
+ | ==== Guided Grain Direction ==== | ||
Wood that has a varying grain orientation through space can also be specified by using geometry as guides for the material coordinate system axes. Axis 1 of the wood coordinate system comes from the tangents of a guide curve chosen by the user. Axis 3 is computed from the surface normal of a guide surface. During simulation, the nearest points on this guide geometry are computed and the curve tangent or surface normal (as appropriate) are used to generate the material coordinate system. See the following figures for reference: | Wood that has a varying grain orientation through space can also be specified by using geometry as guides for the material coordinate system axes. Axis 1 of the wood coordinate system comes from the tangents of a guide curve chosen by the user. Axis 3 is computed from the surface normal of a guide surface. During simulation, the nearest points on this guide geometry are computed and the curve tangent or surface normal (as appropriate) are used to generate the material coordinate system. See the following figures for reference: | ||
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===== Displaying Wood Coordinate System ===== | ===== Displaying Wood Coordinate System ===== | ||
- | To allow visual verification of the grain specification, | + | To allow visual verification of the grain specification, |
{{: | {{: | ||
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+ | [[#Using Wood Materials|Back to Top]] | ||
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+ | \\ | ||
+ | \\ | ||
+ | ===== Related Videos ===== | ||
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+ | <WRAP half column> | ||
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wiki/sns/snspro/using_wood_materials.1499977509.txt.gz · Last modified: 2017/07/13 14:25 by claire