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MoFEM proslijedio/la je Tweet
Mebratu created a module for MoFEM for capillary driven flows in the paper. It is made especially for students at UofG studying attending course Biosensors and Diagnostics to design their lab-on-a-chip devices before making them. Kick-start next week. http://mofem.eng.gla.ac.uk/mofem/html/unsaturated_flow.html …pic.twitter.com/3OXGgV4AR1
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MoFEM proslijedio/la je Tweet
Contact which Lagnarge multipliers in H-div space work quite nice :) This will be a tutorial lesson on how to implement bespoke problem in MoFEM. All tutorial lessons will be combined to create a workshop. https://twitter.com/LukaszKaczmarcz/status/1221075953163689988 …pic.twitter.com/YxOxndEnfw
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MoFEM proslijedio/la je Tweet
Our paper to introduce MoFEM
@mofemjoseph - our open source finite element software - just published in JOSS - The Journal of Open Source Software@JOSS_TheOJ. Well done to@LukaszKaczmarcz and the team.https://twitter.com/JOSS_TheOJ/status/1221098695594254337 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
MoFEM proslijedio/la je Tweet
Just published in
#JOSS_theOJ: 'MoFEM: An open source, parallel finite element library'https://doi.org/10.21105/joss.01441 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
MoFEM proslijedio/la je Tweet
This lectures growing in me. What about another abstraction level in MoFEM? Now I use (differential) pipelines operator on the fields. Programming with categories, i.e. total control on the state. State (variables), the main source of evil? Lecture & Sunday morning. https://twitter.com/johncarlosbaez/status/1215318439616643073 …pic.twitter.com/3INFALGHmC
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See our paper on the framework for brittle fracture in heterogeneous adapting material, i.e. bone remodelling and fracture 3rd metacarpal bone (In review to Computational Mechanics)
@inz_KaroleL@LukaszKaczmarcz@jfmarshall@Ignatios_Ath@cjpearce https://arxiv.org/abs/2001.00647 pic.twitter.com/Xky91MLUi7
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MoFEM proslijedio/la je Tweet
It is yielding of a plate with small isotropic hardening. Cool yielding and creation of sheer bands. The colour shows the plastic strain magnitude. No smoothing, plastic strains are in L2 space as a primary variable, next to displacements and Lagrange platic multiplier. https://twitter.com/LukaszKaczmarcz/status/1213561720167436288 …pic.twitter.com/0C4aPnVIgO
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MoFEM proslijedio/la je Tweet
1/5 Another MoFEM lesson for classical plasticity this time, but not classical implementation. Implementation is with unilateral constrains for plastic flow and approx. of displacements, plastic multiplier and plastic strain. It is hanging plate, under gravity and no hardening.pic.twitter.com/uJlX24lhc8
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MoFEM proslijedio/la je Tweet
I've asked MoFEM developers to send pictures from their locations at Christmas Eve, and this what I got,pic.twitter.com/6V3vWdwQX2
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MoFEM proslijedio/la je Tweet
Great to see research grant using
@mofemjoseph as a key tool
https://twitter.com/Zahur_Ullah/status/1207438619625033735 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
MoFEM proslijedio/la je Tweet
A small tutorial on how to make a model in Salome (https://www.salome-platform.org ) and run it in
@mofemjoseph. http://mofem.eng.gla.ac.uk/mofem/html/using_salome_tut_elasticity.html … BTW Tutorial was written by Adriana, she is a new contributor, and writing documentation is a good start.pic.twitter.com/sCmP51VLAF
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MoFEM proslijedio/la je Tweet
Writing MoFEM lessons, one is Helmholtz problem. Here double-slit experiment, real part colours, the elevation is acoustic pressure. Looks pretty cool. BTW 10th polynomial order (p-adaptivity is more efficient that h-adaptivity this problem).pic.twitter.com/IJZSb6NjEq
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MoFEM proslijedio/la je Tweet
Testing if computer cluster working OK; Bertein-Brazier base (no optic branch), 4th order, implicit time integration (alpha method). The explosion of 1 gram of TNT next to metal concrete (led balls, silicon, concrete). You can see shock wave in tenths of a millisecond.pic.twitter.com/lmseRNqvWN
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MoFEM proslijedio/la je Tweet
My calculation should overestimate extremes; I had to simplify the problem for the lesson. However average is spot on, ~44K (-229 Celcius) from example and Wikipedia.
https://twitter.com/LukaszKaczmarcz/status/1203723924523114498 …
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MoFEM proslijedio/la je Tweet
1/2 Writing a series of lessons for
@mofemjoseph. One lesson is on nonlinearities at the boundary. As an example, the calculated temperature of Pluto using radiation (nonlinear!) and heating from the sun. From Wikipedia min is 33K and max 55K, I get 24K and 68K, respectively.pic.twitter.com/rRXTL0FeVM
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MoFEM proslijedio/la je Tweet
I am playing with "Lab on a Chip", e.g. like a pregnancy test. The knowledge of soil mechanics is essential; flow is driven by capillary pressure in the paper. Colour is water saturation, arrows are water flux. Paper is dry (moisture from the air only) and three ends are wetted.pic.twitter.com/Mq3eH6X4xj
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MoFEM proslijedio/la je Tweet
More torsion & wringing — 2nd order displacements (~3M Dofs). In this mix solid element logarithm of a stretch tensor is directly approximated on the mesh. That looks to be a good idea since eigenvalues of the stretch tensor are always positive. BTW No self contact.
@mofemjosephpic.twitter.com/uIeA9NUH5iPrikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
MoFEM proslijedio/la je Tweet
Pretty cool wrinkling for nearly incompressible Mooney–Rivlin with new mix FE; displacements, rotations and logarithm of stretches in L2 space, Piola stress in H-div space. Here linear displacements, i.e. low order.
@mofemjoseph (BTW Note gradient of deformation determinant).pic.twitter.com/M8NNbhKnXPPrikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
MoFEM proslijedio/la je Tweet
A small new feature in
@mofemjoseph topology optimisation module - anisotropic filtering.
Now it is much more suitable for #3Dprinting or extrusion.#SimulationFridaypic.twitter.com/sj4jdlOkPnHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
MoFEM proslijedio/la je Tweet
Mebratu building in
@mofemjoseph a hart model; one process to model is a electro-reaction-diffusion procsess. One the way to the final goal is example for self-assembly segregation pattern from a completely random initial condition. Here we are using mix formulation with RT-base.pic.twitter.com/I8c6419nxUHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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