Wenbin Yu's blog

cdmHUB has completed the level I micromechanics simulation challenge. Several micromechanics methods/tools including both commercially available tools such as  Altair MDS, ESI VPS, Digimat, SwiftComp and research codes such as MAC/GMC/HFGMC and FVDAM, are used to analyze six typical 2D/3D microstructures. All the results and model files, inputs and outputs, and the report are hosted on cdmHUB as a live project at https://cdmhub.org/projects/mmsimulationchalleng/.

The aim of this post is to introduce the mechanics of structure genome (MSG) as a possible unified approach for constitutive modeling of structures and materials. Because this discussion relates with structural mechanics and micromechanics, two familiar topics which have been studied by many, it is difficult to cite all the relevant references in a blog post without missing important ones. Thus, I only share some general understanding of relevant topics which are available from typical textbooks.

The initial results of level I of micromechanics simulation challenge have been compiled into a report, which is available at https://cdmhub.org/resources/948.  Results for various composites including iber reinforced composites, particle reinforced composites, laminates, woven composites, short fiber composites from several readily available micromechanics simulation tools include MAC/GMC, MAC/HFGMC, FVDAM, MDS, DIGIMAT, SwiftComp are compiled.

I know the mechanics community have many codes to share. If you have developed engineering software including legacy Windows codes or linux codes, you can easily publish your code in the cloud and have it run on any devices including smart phones through cdmHUB.org. The codes could be simple codes you wrote for your dissertation or comprehensive commerical package like ABAQUS or ANSYS. You don't have to change your code, no source codes are needed. All you need to do is to upload your executable through a very straight forward way which only takes a few minutes.

For the purpose of establishing the best practice for homogenization and dehomogenization needed in composites design and manufacturing, cdmHUB launches the Micromechanics Simulation Challenge. After incoporating comments from  academia, industry and commercial software providers, we have finalized the final draft for Level 1 problems, which is attached here with more details can be at https://cdmhub.org/resources/665.

I thought this might be of interest for some imechanicans, particularly those who work on composites (anisotropic and/or heterogeneous materials). Sorry if it sounds a bit infomercial. 

Imagine a youtube-like environment for you to deploy a cloud version of your code without any change to your original code. Your research code can be immediately shared with the global community. 

As the importance of micromechanics is increasingly realized in composites design & manufacturing at the industry level, cdmHUB is launching a Micromechanics Simulation Challenge for the purpose of establishing the best practices for homogenization and dehomogenization needed in composites design and manufacturing.