Mass per element

Hi all,

I'm working on assessing the sustainability of structural elements. I need the mass per element used (each group of elements can have a different material) to assess this.

I use a cross-section-optimiser which gives the total mass of the structure, however I cannot figure out how to get this per structural element. Any idea?

Thank in advance.

Niels

Replies to This Discussion

Permalink Reply by Karamba3D on February 27, 2018 at 1:51pm

Dear Niels,

you could write a script: iterate over the elements of interest in the model and use the method Model_Element.weight(List<Node> nodes) to get the weight of each of them. 'nodes' is the list of the nodes in the model which you get via 'model.nodes'. The model elements are available via 'model.elems'.

Best,

Clemens

Permalink Reply by Niels Hofstee on March 1, 2018 at 3:59am

Hi Clemens,

Thanks for your suggestions. I figured out a workaround: I extract the material data per element group, get the amount of elements, length and area in each group with 'Disassemble cross-section', and then multiple everything.

If I want to make a script, should it be in VB, python or #C? And is there any documentation on Karamba for that? (besides the available manual)

Thanks!

Niels

Permalink Reply by Karamba3D on March 1, 2018 at 1:43pm

Hi Niels,

your script can be in VB, Iron Python or C# or even F# since all of these are based on the .NET Framework.

There is a scripting manual for Karamba called 'karamba 1.1.0 Hacker's Essentials' available at https://www.karamba3d.com/download/hackers-essentials-2/?wpdmdl=434....

Compared to version 1.1.0 there have been small changes in the interface definitions in Karamba 1.2.2. With the help of IlSpy this should however be no big problem.

Best,

Clemens

Permalink Reply by Niels Hofstee on March 2, 2018 at 3:47am

Thanks for your input and documentation Clemens!

Very elegant script right now and easy to make in Python!

Added the file for people that are interested.

Cheers,

Niels

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