Re: Inquiry Regarding Creating Holes in RVE from EBSD Data in DREAM.3D

[Michael Jackson]

Hello, 

    You could certainly use a precipitate phase to act as the porosity. The EBSD data would act as the primary phase(s). This should work as expected. This approach would give you a more random distribution of pores throughout the RVE.

If you go the STL route then you may be more accurately model the morphology of the pores and their spatial locations within the RVE. These locations would be constant from run to run of DREAM.3D which could be beneficial to your modeling approach.

Either approach really should work for your needs.

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Mike Jackson                    mike.j...@bluequartz.net
BlueQuartz Software         www.bluequartz.net

President/Owner               Dayton, Ohio

Principal DREAM.3D Developer

On Apr 14, 2025 at 21:35:46, YX Z <15537...@163.com> wrote:

Dear DREAM.3D Team,

I hope this message finds you well.

I am currently working on a project involving the generation of representative volume elements (RVEs) based on EBSD data to better capture the microstructural characteristics of additively manufactured materials. As you know, porosity is a common feature in such materials, and I would like to include representative holes within the RVE to more accurately reflect the real microstructure (as illustrated in the attached image).

After reviewing previous discussions and documentation, I have identified two potential approaches, but neither seems applicable to my current case:

1. Using a two-phase structure to represent holes — This approach appears to work when generating synthetic microstructures, but since I am using EBSD data to create the RVE, this method does not seem feasible in my case.

2. Using an STL file to define a 3D geometry with holes — Another approach is to first create a 3D model with equivalent volume and morphology that includes holes, and then use an STL file together with a series of filters to "transfer" the model data (as shown in the attached conversation link）. However, this method does not seem suitable for building RVEs directly from EBSD data.

At this stage, I am unsure how to proceed and would greatly appreciate any suggestions or alternative workflows you might recommend for incorporating voids or holes into RVEs derived from EBSD data.

Thank you in advance for your time and support.

Best regards,

https://groups.google.com/g/dream3d-users/c/CxM3aYtINHs/m/NBiDByP0AgAJ

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