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--- wiki:sns:snspro:using_wood_materials [2017/07/17 09:19] – claire
+++ wiki:sns:snspro:using_wood_materials [2023/12/13 13:43] (current) – [Related Videos] michael
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 **Important Note:** The material coordinate system convention used by Scan&Solve is different from that used by the wood industry where axis 2 is usually the radial direction and axis 3 is tangential to the growth rings. The Scan&Solve convention is derived from the system commonly used for composites, with the wood's growth direction analogous to the composite build direction (axis 3). Mechanical properties defined in one convention are related mathematically to those in the other, so conversion between the two is possible.
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 ===== Wood Material Tab =====
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   * [Specify]
   * [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.
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