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    MetaVoxels

    Tools for the design and simulation of metavoxels (meta-material voxel lattice structures). The objective is the inverse design of metavoxels using the base voxels studied in DM3.

    I am now using this gitlab project for documentation only, the code lives here now.



    Code

    Physics

    Search

    Robotics

    Assembly

    Interactive Demos

    TODO

    Desired Milestones

    • 3D visualization tool
    • One voxel simulation
    • Multi-voxel simulation
    • Physical simulation comparison
    • Parallel dynamic ODE solver
    • Hierarchical simulation
    • One voxel optimization based on desired deformation
    • Inverse Design of Large Structures
    • Inverse Design of Active structures (offline and online)
    • Growing and Evolving structures (Path planing + simulation)

    General

    • fix pipeline issue
      • create group for metavoxel
      • port the code to different project
    • Merge metavoxel with dice stuff??
    • Debug code to use latest julia and CUDA pkg
    • clean the files and put app.js and app1.js and julia notebooks in folders

    Documentation

    • get the video you created and add it instead of gifs
      • make sure the codec information is correct
    • Document cpu version and how to change the number of threads

    Demos

    • different kinds of voxels
      • add chiral voxel
      • add auxetic voxel
      • add compliant voxel
      • search for one way bendy voxel
      • Demo and .gif different types of voxels beside each other
    • fill mesh/frep with voxels
      • port swarm paper asd (voxelizer)
        • parallelize it
      • fill frep
        • get the gpu thing and get data from function
    • fix linked demos
    • populate interactive demos
    • drop down examples from html instead of saving lots of html pages

    Scaling and Hierarchy

    • comparison hierarchical vs detailed
      • madcat
    • automatic elasticity vector calculation
    • use parent data to get hierarchy information
    • different scale voxels in the same simulation (multi-scale simulation)

    Interface and visualization

    • change export settings instead of lost of json to only one and see performance
    • change visualization to GPU to be faster for bigger systems
      • graph based
        • show the labels
      • gpu based
        • finish implementation
        • fixed max num of timesteps
    • see way to show current timestep
    • slider down for displacement instead of animation
    • gui for boundary conditions
    • show force function between nodes
      • force graph
    • show control graph
    • change to white background

    Differentiation and Search

    • Redo the microstructure topology optimization
    • use the compliant one to search for one way bendy structure
    • differentiation

    Physics

    • change recommended time-step to look at all lengths, E and areas
    • Non linear behavior get the stress strain curve multiple points and use them
    • add collision/bins
    • add note about units
    • add detailed parametric study about the different values that can be changed and effect on convergence and num time steps
      • for ex: damping factor, stiffness, mass, time steps
    • Explore double beams
    • Add definitions for other beam cross sections
    • include other integrators (better than verlet integration)