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karamba3d / K3D_NightlyBuilds

Nightly build versions of Karamba3d
https://karamba3d.com
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BUG: Materialdatabase or Calculation of Wood(parallel) #25

Closed georglobe closed 3 years ago

georglobe commented 3 years ago

Describe the bug K3D 2.0.0 - build 201215 WIP for RHINO 6

Deformation wrong.

Happens with: -Hardwood (parallel) -Coniferous Timber (parallel)

To Reproduce Change Material from (ortho) to (parallel).

Notes -Upload screenshots

Screenshot (4) Screenshot (5)

-Upload a simplified version of the script (no third party grasshopper plugins)

bug_parallel_material.zip

Clemens-Preisinger commented 3 years ago

Hello @georglobe, I found the cause of the strange behavior: it comes about when G12 is much smaller than E/2 which is physically not possible since it would mean that Poissons Ratio is larger than 0.5. I have corrected the corresponding entries in the material table and set the limit of G12 to E/2. This will be part of the next WIP release -- Clemens