Material list equivalent of Duraluminum and please add to material list

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Permalink Reply by Vadim Shapiro on October 29, 2010 at 1:08pm

The next release (coming in up within couple of days) will give you the ability to add custom materials. If you cannot wait, you can also modify the material properties file yourself as explained in these instructions.

Thanks for posting -- looks like a very fun project! Hope to see more.

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Permalink Reply by Roland M on October 29, 2010 at 2:35pm

Hi Vadim,

Thanks for helpful hints and for adding the custom materials in future versions.

I looked further into duraluminum and from the sources I looked at it appears it is now designated as aluminum alloy 2024 which you already have listed. I'm going to recalculate my model with that material.

Quick question the girder I modeled is made from sheet folded aluminum riveted together to make a beam. In the pic I posted I only tested one of the parts of the model the other part insets into the part in the pic and is riveted to it.

How would I test the entire beam since it is made of 4 polysurfaces riveted together. I'm willing to remodel and rejoin to make it work as one model. Just fishing for hints.

I really appreciate your hard work on this plugin and for letting the rhino community test it.
RM

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Permalink Reply by Vadim Shapiro on October 29, 2010 at 3:26pm

Roland, this initial version of Scan&Solve does not handle assemblies, but only single solids. It is true that in some cases it might sense to just union all parts together and analyze them as a single solid structure, but this will also miss potentially the most vulnerable places in the assembly, such as joints, rivets, etc, making the simulation results questionable. So it all depends on what is reasonable to assume and what it is you are trying to determine. I would want to ask an opinion of a good structural engineer (and I am not one of them!).

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Permalink Reply by Roland M on November 2, 2010 at 2:26pm

Thanks for the reply Vadim. These rigid airship structures get complicated fast they are riveted into ringed struts with lots of segments that are different sizes, the rings are held together into one monolithic structure fastened with tension wires that control their deformations but allow flexing.
RM

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