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#fem — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #fem, aggregated by home.social.

  1. HMMM... 🤔
    ANYBODY ELSE THINK THE PETER THIEL MAKEOVER MAY HAVE GONE... 🧔‍♂️🕺🏻👁👁
    HORRIBLY WRONG??? 💡
    #JDvance
    #Nadless
    #Vagged
    #Fierce
    #Fem
    #Bot
    🖕🏻🤖 💅🏻

  2. Finite Element Analysis rabbit hole.

    works passably on Linux and with youtube tutorials (thanks Indian- and Polish-accent guys) I could actually simulate twisting a rod and do experiments. Easy to use for a total newb!

    That informs me where to place strain gauges for one of my projects.

    I promise all the random stuff I've been doing ties together, eventually.

  3. Finite Element Analysis rabbit hole.

    #PrePoMax works passably on Linux and with youtube tutorials (thanks Indian- and Polish-accent guys) I could actually simulate twisting a rod and do experiments. Easy to use for a total newb!

    That informs me where to place strain gauges for one of my projects.

    I promise all the random stuff I've been doing ties together, eventually.

    #mechanics #FEM #FEA #numericalAnalysis

  4. Finite Element Analysis rabbit hole.

    #PrePoMax works passably on Linux and with youtube tutorials (thanks Indian- and Polish-accent guys) I could actually simulate twisting a rod and do experiments. Easy to use for a total newb!

    That informs me where to place strain gauges for one of my projects.

    I promise all the random stuff I've been doing ties together, eventually.

    #mechanics #FEM #FEA #numericalAnalysis

  5. Finite Element Analysis rabbit hole.

    #PrePoMax works passably on Linux and with youtube tutorials (thanks Indian- and Polish-accent guys) I could actually simulate twisting a rod and do experiments. Easy to use for a total newb!

    That informs me where to place strain gauges for one of my projects.

    I promise all the random stuff I've been doing ties together, eventually.

    #mechanics #FEM #FEA #numericalAnalysis

  6. Finite Element Analysis rabbit hole.

    #PrePoMax works passably on Linux and with youtube tutorials (thanks Indian- and Polish-accent guys) I could actually simulate twisting a rod and do experiments. Easy to use for a total newb!

    That informs me where to place strain gauges for one of my projects.

    I promise all the random stuff I've been doing ties together, eventually.

    #mechanics #FEM #FEA #numericalAnalysis

  7. If one has a linear-elastic material in mind, one would assume this works for any kind of finite element simulations. In case of large rotations and large strains, "linear" is not unique. There are many different implementations of linear-elastic materials. Beside the mathematical details, a cube, rotated by 90° and stretched to a factor of 2, will show different deformations. You'll see a small-strain, Total-Lagrange (Saint-Venant Kirchhoff material) and the co-rotated framework as well as a compressible Neo-Hookean material model formulation.

    Reminder: don't use small-strain linear-elastic material formulations in simulations where large rotations occur - just because the strains are "small".

    All figures created by #felupe for simulation and #pyvista for plotting.

    #python #computationalmechanics #scientificcomputing #numpy #fem #fea #opensource

  8. If one has a linear-elastic material in mind, one would assume this works for any kind of finite element simulations. In case of large rotations and large strains, "linear" is not unique. There are many different implementations of linear-elastic materials. Beside the mathematical details, a cube, rotated by 90° and stretched to a factor of 2, will show different deformations. You'll see a small-strain, Total-Lagrange (Saint-Venant Kirchhoff material) and the co-rotated framework as well as a compressible Neo-Hookean material model formulation.

    Reminder: don't use small-strain linear-elastic material formulations in simulations where large rotations occur - just because the strains are "small".

    All figures created by #felupe for simulation and #pyvista for plotting.

    #python #computationalmechanics #scientificcomputing #numpy #fem #fea #opensource

  9. If one has a linear-elastic material in mind, one would assume this works for any kind of finite element simulations. In case of large rotations and large strains, "linear" is not unique. There are many different implementations of linear-elastic materials. Beside the mathematical details, a cube, rotated by 90° and stretched to a factor of 2, will show different deformations. You'll see a small-strain, Total-Lagrange (Saint-Venant Kirchhoff material) and the co-rotated framework as well as a compressible Neo-Hookean material model formulation.

    Reminder: don't use small-strain linear-elastic material formulations in simulations where large rotations occur - just because the strains are "small".

    All figures created by #felupe for simulation and #pyvista for plotting.

    #python #computationalmechanics #scientificcomputing #numpy #fem #fea #opensource

  10. After a summerbreak, #FElupe development continues! Stay tuned for lots of handy new features: checkpoint/restore, revolve a.k.a. axi-to-3d, simplified handling of multiple solid bodies, etc. These new features are already available in the main git branch and will be released soon.

    felupe.readthedocs.io/en/lates

    P.S. I'm always open for new ideas, just let me know!

    #computationalmechanics #scientificcomputing #python #opensource #fem #fea #finiteelements

  11. After a summerbreak, #FElupe development continues! Stay tuned for lots of handy new features: checkpoint/restore, revolve a.k.a. axi-to-3d, simplified handling of multiple solid bodies, etc. These new features are already available in the main git branch and will be released soon.

    felupe.readthedocs.io/en/lates

    P.S. I'm always open for new ideas, just let me know!

    #computationalmechanics #scientificcomputing #python #opensource #fem #fea #finiteelements

  12. After a summerbreak, #FElupe development continues! Stay tuned for lots of handy new features: checkpoint/restore, revolve a.k.a. axi-to-3d, simplified handling of multiple solid bodies, etc. These new features are already available in the main git branch and will be released soon.

    felupe.readthedocs.io/en/lates

    P.S. I'm always open for new ideas, just let me know!

    #computationalmechanics #scientificcomputing #python #opensource #fem #fea #finiteelements

  13. For much more rotations, a powerful numeric continuation method is your friend.

    The "speed" of the rotation is a result of the adaptive step-size of contique (one frame per converged step, constant framerate).

    github.com/adtzlr/contique

    #computationalmechanics #scientificcomputing #FiniteElementMethod #fem #fea #python #opensource

  14. For much more rotations, a powerful numeric continuation method is your friend.

    The "speed" of the rotation is a result of the adaptive step-size of contique (one frame per converged step, constant framerate).

    github.com/adtzlr/contique

    #computationalmechanics #scientificcomputing #FiniteElementMethod #fem #fea #python #opensource

  15. For much more rotations, a powerful numeric continuation method is your friend.

    The "speed" of the rotation is a result of the adaptive step-size of contique (one frame per converged step, constant framerate).

    github.com/adtzlr/contique

    #computationalmechanics #scientificcomputing #FiniteElementMethod #fem #fea #python #opensource

  16. 🚀🚀 FElupe is now available on conda-forge! 🚀🚀 Unfortunately, it doesn't handle optional dependencies like pip. Anyway here's a nice animation of the #hyperelastic "twisting column" example from the book of Bonet & Wood. This one works without any fancy continuation techniques, it's just Newton's method.

    github.com/adtzlr/felupe

    #computationalmechanics #FiniteElementMethod #scientificcomputing #fem #fea #python #opensource

  17. 🚀🚀 FElupe is now available on conda-forge! 🚀🚀 Unfortunately, it doesn't handle optional dependencies like pip. Anyway here's a nice animation of the #hyperelastic "twisting column" example from the book of Bonet & Wood. This one works without any fancy continuation techniques, it's just Newton's method.

    github.com/adtzlr/felupe

    #computationalmechanics #FiniteElementMethod #scientificcomputing #fem #fea #python #opensource

  18. 🚀🚀 FElupe is now available on conda-forge! 🚀🚀 Unfortunately, it doesn't handle optional dependencies like pip. Anyway here's a nice animation of the #hyperelastic "twisting column" example from the book of Bonet & Wood. This one works without any fancy continuation techniques, it's just Newton's method.

    github.com/adtzlr/felupe

    #computationalmechanics #FiniteElementMethod #scientificcomputing #fem #fea #python #opensource

  19. Uno de los programas de #TOFUria más esperados (al menos para mi)! :queeranarchy: :trantifa: :heart_lesbian: :anartrans_symbol:
    Por fin conseguimos acorralar a una de nuestras #fems favoritas en el estudio de Radio Malva, Andrea Corrales Devesa: de punkinki alicantina a okupa transfeminista en karcelona, ahora es Doctora en Industrias de la Comunicación y Culturales, llevando una muy necesitada perspectiva #prosex y fem a la academia, sin olvidar sus orígenes disidentes. Divagamos sobre algunos de los temas que se tocan en sus dos libros que han salido este año, FEMS AQUÍ! (Ed. Avenate) y Putas Imágenes (Ed. Bellaterra): el rechazo a lo fem, las intersecciones entre expresión de género y clase social, las conexiones y complicidades desde los márgenes, Monique #Wittig y Joan #Nestle grandes referentes lesbianas. Por desgracia nos quedamos sin tiempo para entrar en la segunda parte de Putas Imágenes: la censura y legislaciones anti trabajo sexual en internet, así que quedamos en dedicar un programa futuro a este tema tan candente en la actualidad, con la nueva oleada de resistencia al tecnopunitivismo que ha estallado en respuesta a la entrada en vigor de la Online Safety Act en el Reino Unido.

    radiomalva.org/2025/08/04/161-

    #femme #lesbiana #bollera #trans #transfem #transfemme #transwoman #trans #TrabajoSexual #TrabajoSexualEsTrabajo #porno #pornografia #postporno #karcelona #barcelona #valencia #RadiosLibres #transfeminismo #feminismo #lesbofeminismo #femfobia #terf #swerf #LaZowi #Mariahlynn #okupa #Avenate #Bellaterra #fem #queer #cuir #LGTB #LGTBI #punk #choni #feminidad #disidencia #sexodisidencia #sexodisidente #SamanthaHudson #villana #DreamNails

  20. /#FEA workbench is getting some multi-threading love. Specifically anf solvers. Thank you 'donovaly' 🙏

    github.com/FreeCAD/FreeCAD/pul
    github.com/FreeCAD/FreeCAD/pul

  21. Falda Negra y Medias Musleras Negras. Esta fotografía es de mi primera falda, cómo nunca utilicé una antes no sabía si la camiseta de tiritas iba dentro o fuera de ella, así que al final quedó así. En realidad era la primera vez de todo, camiseta de tiras, falda y medias musleras 😶.

    #Trans #Transgenero #Travesti #Trap #Trapito #HaM #Fem #Negro #BlancoyNegro #Camiseta #CamisetaBlanca #CamisetaTirantes #Falda #FaldaNegra #FaldaTrap #Medias #MediasNegras #MediasLargas #MediasTrap

  22. Falda Negra y Medias Musleras Negras. Esta fotografía es de mi primera falda, cómo nunca utilicé una antes no sabía si la camiseta de tiritas iba dentro o fuera de ella, así que al final quedó así. En realidad era la primera vez de todo, camiseta de tiras, falda y medias musleras 😶.

    #Trans #Transgenero #Travesti #Trap #Trapito #HaM #Fem #Negro #BlancoyNegro #Camiseta #CamisetaBlanca #CamisetaTirantes #Falda #FaldaNegra #FaldaTrap #Medias #MediasNegras #MediasLargas #MediasTrap

  23. Hello, world! Wait, for a nonlinear simulation #python package? If you'd like to use FElupe for your #hyperelastic #simulation but don't know where to start & too lazy to read the docs, you may use the hello_world() function to print a minimal-working example to the console.

    Initially, I wasn't sure if that kind of function really makes sense. But it turns out that I'm using this one quite frequently. 📝 (shhh! Author here... 🤓)

    github.com/adtzlr/felupe

    #scientificcomputing #computationalmechanics #finiteelementmethod #fem #fea

  24. Hello, world! Wait, for a nonlinear simulation #python package? If you'd like to use FElupe for your #hyperelastic #simulation but don't know where to start & too lazy to read the docs, you may use the hello_world() function to print a minimal-working example to the console.

    Initially, I wasn't sure if that kind of function really makes sense. But it turns out that I'm using this one quite frequently. 📝 (shhh! Author here... 🤓)

    github.com/adtzlr/felupe

    #scientificcomputing #computationalmechanics #finiteelementmethod #fem #fea

  25. Have you ever thought 💡 of using JAX as 🧮 #automaticdifferentiation engine in 💻 finite element simulations? Boost the performance 🏇 of computationally-expensive hyperelastic material models with #jit in 🔍 FElupe! 🚀 🚀

    github.com/adtzlr/felupe

    #python #jax #finiteelementmethod #scientificcomputing #computationalmechanics #fea #fem #hyperelasticity

  26. Have you ever thought 💡 of using JAX as 🧮 #automaticdifferentiation engine in 💻 finite element simulations? Boost the performance 🏇 of computationally-expensive hyperelastic material models with #jit in 🔍 FElupe! 🚀 🚀

    github.com/adtzlr/felupe

    #python #jax #finiteelementmethod #scientificcomputing #computationalmechanics #fea #fem #hyperelasticity

  27. In numeric simulations of the deformation of solid bodies coming into contact, a good contact algorithm is required. Beside the typical approaches (node-to-segment, segment-to-segment or Mortar-based), the so-called third medium frictionless contact method with a Hessian-based regularization is carried out in an example of FElupe. The method does not require any special treatment of surface normals - instead, the air (a.k.a. third medium) is represented by a very soft solid (with all its benefits and drawbacks...).

    en.wikipedia.org/wiki/Third_me

    felupe.readthedocs.io/

    #finiteelementmethod #computationalmechanics #scientificcomputing #python #opensource #fem #fea #contact #mesh

  28. In my Python FEA package FElupe I've noticed that the time spent on assembling (especially large) finite element matrices takes longer than in recent releases. The slowdown is about 15% to 100%, depending on the number of degrees of freedom. From a computational-cost point of view, there are some cheap arrays stored inside a numeric region. A somewhat massive einsum-call further evaluates the values for the sparse finite element matrix. Due to some recent code changes, these cheap region arrays aren't contiguous anymore. That slows down the finite element matrix assembly up to 100%! By ensuring C-contiguous arrays, performance is back to normal (NumPy array flags are available as attribute ndarray.flags).

    github.com/adtzlr/felupe

    #python #numpy #FiniteElementMethod #finiteelements #fem #fea #scientificcomputing #computationalmechanics

  29. In my Python FEA package FElupe I've noticed that the time spent on assembling (especially large) finite element matrices takes longer than in recent releases. The slowdown is about 15% to 100%, depending on the number of degrees of freedom. From a computational-cost point of view, there are some cheap arrays stored inside a numeric region. A somewhat massive einsum-call further evaluates the values for the sparse finite element matrix. Due to some recent code changes, these cheap region arrays aren't contiguous anymore. That slows down the finite element matrix assembly up to 100%! By ensuring C-contiguous arrays, performance is back to normal (NumPy array flags are available as attribute ndarray.flags).

    github.com/adtzlr/felupe

    #python #numpy #FiniteElementMethod #finiteelements #fem #fea #scientificcomputing #computationalmechanics

  30. FElupe 🔍 now has visual previews for the schemes of most numeric regions (finite element formulation + quadrature rule) in its HTML API docs - thanks to PyVista. There are also a lot of helpful static and interactive plots in other sections of the docs too. Go check it out!

    Simulating the nonlinear deformation of hyperelastic structures has never been easier in a few lines of Python code.

    felupe.readthedocs.io/

    #fea #fem #scientificcomputing #computationalmechanics #FiniteElementMethod #finiteelements #python #plot

  31. I Wonder where the #hearingaids developers are! These would be awesome to have do a talk.
    Same for the "process signal, but *fast*" people; top of my head, we've got @rygorous , but he's more on the "fast" than on the signals side. We have @mkretz who could talk about C++ SIMD stuff, but my guess: he'd prefer to talk in a room full of compileristas?
    Are #EMerge #FEM/#Heavi people here? It'd seem #Sionna gets a lot of well-deserved attention combing physics+signals, but it's not the sole toolkit!