# \#fem

**URL:** https://discourse.julialang.org/tag/fem/332.md

[Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md)

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## [\[ANN\] LowLevelFEM.jl is now published in JOSS](https://discourse.julialang.org/t/ann-lowlevelfem-jl-is-now-published-in-joss/138524)

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**Author:** [@perebalazs](https://discourse.julialang.org/u/perebalazs)\
**Replies:** 0\
**Last updated:** [July 29, 2026, 9:43am UTC](https://discourse.julialang.org/t/ann-lowlevelfem-jl-is-now-published-in-joss/138524 "2026-07-29T09:43:01Z")

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I’m happy to share that LowLevelFEM.jl has been published in the Journal of Open Source Software (JOSS). LowLevelFEM.jl is a lightweight finite element toolbox written in Julia for education, research, and rapid prototy…

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## [\[ANN\] LowLevelFEM.jl – assembling PDE systems directly from weak forms](https://discourse.julialang.org/t/ann-lowlevelfem-jl-assembling-pde-systems-directly-from-weak-forms/136136)

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**Author:** [@perebalazs](https://discourse.julialang.org/u/perebalazs)\
**Replies:** 13\
**Last updated:** [March 13, 2026, 8:43pm UTC](https://discourse.julialang.org/t/ann-lowlevelfem-jl-assembling-pde-systems-directly-from-weak-forms/136136 "2026-03-13T20:43:23Z")

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I’ve been working on a small Julia FEM framework called LowLevelFEM.jl. One of the ideas behind the project is to assemble PDE systems directly from their weak form. The core idea is simple: If you know the weak form o…

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## [Stokes Operator is Singular After Applying Dirichlet Boundary Conditions](https://discourse.julialang.org/t/stokes-operator-is-singular-after-applying-dirichlet-boundary-conditions/135278)

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**Author:** [@noetheriankoala](https://discourse.julialang.org/u/noetheriankoala)\
**Replies:** 7\
**Last updated:** [January 27, 2026, 5:53pm UTC](https://discourse.julialang.org/t/stokes-operator-is-singular-after-applying-dirichlet-boundary-conditions/135278 "2026-01-27T17:53:11Z")

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Hello! I am trying to implement a simple incompressible Navier-Stokes simulation. I have a mesh consisting of a cylinder with the Stanford bunny excised from its center. When I apply Drichlet boundary conditions, the Sto…

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## [\[ANN\] LowLevelFEM.jl – Engineering-oriented FEM in pure Julia](https://discourse.julialang.org/t/ann-lowlevelfem-jl-engineering-oriented-fem-in-pure-julia/133561)

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**Author:** [@perebalazs](https://discourse.julialang.org/u/perebalazs)\
**Replies:** 0\
**Last updated:** [October 30, 2025, 6:12pm UTC](https://discourse.julialang.org/t/ann-lowlevelfem-jl-engineering-oriented-fem-in-pure-julia/133561 "2025-10-30T18:12:40Z")

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LowLevelFEM.jl is a lightweight finite element toolbox written entirely in Julia. It focuses on engineering-oriented workflows — boundary conditions, meshing with Gmsh, mechanical and thermo-mechanical analyses, and di…

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## [How complete is PETSc.jl for parallel linear solves in FEM/CFD applications?](https://discourse.julialang.org/t/how-complete-is-petsc-jl-for-parallel-linear-solves-in-fem-cfd-applications/129227)

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**Author:** [@priyanshuFSI](https://discourse.julialang.org/u/priyanshuFSI)\
**Replies:** 1\
**Last updated:** [June 7, 2025, 3:17am UTC](https://discourse.julialang.org/t/how-complete-is-petsc-jl-for-parallel-linear-solves-in-fem-cfd-applications/129227 "2025-06-07T03:17:32Z")

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Hi everyone, I’m solving a finite element (FEM) problem in Julia and need to scale up the code. The main issue for me is solving large sparse linear systems in parallel. I know that in CFD and FEM communities, many peo…

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## [Order for finite elements when using Gridap and Gmsh](https://discourse.julialang.org/t/order-for-finite-elements-when-using-gridap-and-gmsh/125094)

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**Author:** [@mikeliux](https://discourse.julialang.org/u/mikeliux)\
**Replies:** 9\
**Last updated:** [January 27, 2025, 8:22am UTC](https://discourse.julialang.org/t/order-for-finite-elements-when-using-gridap-and-gmsh/125094 "2025-01-27T08:22:18Z")

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I am experimenting with Gridap package for solving partial differential equations (PDEs) in Julia. I am creating my meshes with GMSH, using the API provided by the Gmsh package in Julia. I save them as \*.msh files, and t…

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## [GridapGmsh on gmsh.jl object](https://discourse.julialang.org/t/gridapgmsh-on-gmsh-jl-object/82681)

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**Author:** [@chupin](https://discourse.julialang.org/u/chupin)\
**Replies:** 2\
**Last updated:** [January 25, 2025, 9:17pm UTC](https://discourse.julialang.org/t/gridapgmsh-on-gmsh-jl-object/82681 "2025-01-25T21:17:53Z")

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I would like to generate a mesh from a set of points defining a contour computed by a Julia program and then to solve a PDE on the generated mesh. I found the package Gmsh.jl to use gmsh program to build a msh file. Th…

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## [Changing the faceset where the force is acting to another location and change the Force vector Values](https://discourse.julialang.org/t/changing-the-faceset-where-the-force-is-acting-to-another-location-and-change-the-force-vector-values/119339)

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**Author:** [@kings94](https://discourse.julialang.org/u/kings94)\
**Replies:** 2\
**Last updated:** [September 14, 2024, 1:34pm UTC](https://discourse.julialang.org/t/changing-the-faceset-where-the-force-is-acting-to-another-location-and-change-the-force-vector-values/119339 "2024-09-14T13:34:07Z")

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So i am currently tring to run a simulation on a simple beam using the arc length method, where for a certain number of increments a certain load (in the negative x direction) is applied with specific boundary conditions…

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## [What can I do to calculate the L2 norm between the exact solution and my numerical solution?](https://discourse.julialang.org/t/what-can-i-do-to-calculate-the-l2-norm-between-the-exact-solution-and-my-numerical-solution/114359)

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**Author:** [@mcr.92](https://discourse.julialang.org/u/mcr.92)\
**Replies:** 3\
**Last updated:** [May 16, 2024, 2:23pm UTC](https://discourse.julialang.org/t/what-can-i-do-to-calculate-the-l2-norm-between-the-exact-solution-and-my-numerical-solution/114359 "2024-05-16T14:23:52Z")

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I am solving a differential equation by the MOL method, it has an exact solution so I want to calculate the error in the L2 norm. I made this code F1(x) = A\*(cosh(B\*x)) F2(y) = A\*(cosh(B\*y)) FC = -(2\*(B^2)\*K - W)/(ρ\*C\_s…

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## [Modeling deformation in Julia](https://discourse.julialang.org/t/modeling-deformation-in-julia/111941)

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**Author:** [@marianoarnaiz](https://discourse.julialang.org/u/marianoarnaiz)\
**Replies:** 4\
**Last updated:** [March 23, 2024, 11:58pm UTC](https://discourse.julialang.org/t/modeling-deformation-in-julia/111941 "2024-03-23T23:58:50Z")

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Hi everyone, a general question here about Finite elements in Julia. I am trying to do something rather “simple”. Imaging a large body (3D), fully constrained. In side there is a fault/fracture/weak zone inside. There …

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## [JuliaFEM failed to precompile](https://discourse.julialang.org/t/juliafem-failed-to-precompile/109908)

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**Author:** [@Mishal](https://discourse.julialang.org/u/Mishal)\
**Replies:** 9\
**Last updated:** [February 12, 2024, 10:58am UTC](https://discourse.julialang.org/t/juliafem-failed-to-precompile/109908 "2024-02-12T10:58:57Z")

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Hi Guys I am new to Julia, I have tried to install the JuliaFEM package however there seems to be some issues, please refer to the below errors when running the test. I have seen a post about this with the solution requ…

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## [Integration of functions over geometries](https://discourse.julialang.org/t/integration-of-functions-over-geometries/81994)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 30\
**Last updated:** [February 3, 2024, 4:07pm UTC](https://discourse.julialang.org/t/integration-of-functions-over-geometries/81994 "2024-02-03T16:07:20Z")

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Cross-posting from Zulip’s #meshes.jl channel… Does anyone know of a good reference for integration rules over different geometries? For example, to integrate a function f over a triangle, we can consider the surface i…

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## [4D Meshing in julia](https://discourse.julialang.org/t/4d-meshing-in-julia/109239)

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**Author:** [@c\_sell](https://discourse.julialang.org/u/c_sell)\
**Replies:** 4\
**Last updated:** [January 26, 2024, 10:58pm UTC](https://discourse.julialang.org/t/4d-meshing-in-julia/109239 "2024-01-26T22:58:31Z")

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Hi there, Is there a julia package with the ability to generate 4d meshes (the 4th dimension being time). There are no strict requirements for the quality of the mesh (the elements do not have to be convex). Thank you…

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## [Ferrite 2D problem unphysical results](https://discourse.julialang.org/t/ferrite-2d-problem-unphysical-results/107037)

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**Author:** [@c\_sell](https://discourse.julialang.org/u/c_sell)\
**Replies:** 2\
**Last updated:** [December 13, 2023, 2:21pm UTC](https://discourse.julialang.org/t/ferrite-2d-problem-unphysical-results/107037 "2023-12-13T14:21:47Z")

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Hello, I am using the latest version of Ferrite (Ferrite v0.3.14). I’ve simplified my problem to a small 2D rectangular structure (height = 1; width = 2). The left side is clamped, and on the right-hand side, there is s…

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## [\[ANN\] SkeelBerzins.jl v1.0.0 - A universal solver for 1D elliptic and parabolic PDEs](https://discourse.julialang.org/t/ann-skeelberzins-jl-v1-0-0-a-universal-solver-for-1d-elliptic-and-parabolic-pdes/106804)

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**Author:** [@g\_pourtier](https://discourse.julialang.org/u/g_pourtier)\
**Replies:** 0\
**Last updated:** [November 27, 2023, 3:16pm UTC](https://discourse.julialang.org/t/ann-skeelberzins-jl-v1-0-0-a-universal-solver-for-1d-elliptic-and-parabolic-pdes/106804 "2023-11-27T15:16:17Z")

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I am pleased to announce the official release of SkeelBerzins.jl v1.0.0. SkeelBerzins.jl is a universal solver for systems of one-dimensional elliptic and parabolic nonlinear partial differential equations. The package …

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## [Ferrite vs Gridap](https://discourse.julialang.org/t/ferrite-vs-gridap/106186)

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**Author:** [@c\_sell](https://discourse.julialang.org/u/c_sell)\
**Replies:** 3\
**Last updated:** [November 15, 2023, 12:01am UTC](https://discourse.julialang.org/t/ferrite-vs-gridap/106186 "2023-11-15T00:01:03Z")

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Hello everyone, I am looking for a good Julia FEM package. I have found the Gridap and Ferrite packages. What are the pros and cons of using either of these packages? I am particularly interested in doing calculations …

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## [Package for machanic/static framework](https://discourse.julialang.org/t/package-for-machanic-static-framework/69900)

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**Author:** [@f.L0x](https://discourse.julialang.org/u/f.L0x)\
**Replies:** 5\
**Last updated:** [May 27, 2023, 3:07pm UTC](https://discourse.julialang.org/t/package-for-machanic-static-framework/69900 "2023-05-27T15:07:48Z")

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Hi there, Is there a package to build simple mechanic/static framework? For example like this? I just need, simplified beams, simplified bearings and forces. I had a look at Gridap.jl and JuaFEM.jl, but these seems…

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## [Gridap.jl field-circuit coupling for magnetostatics](https://discourse.julialang.org/t/gridap-jl-field-circuit-coupling-for-magnetostatics/83069)

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**Author:** [@gwlagerweij](https://discourse.julialang.org/u/gwlagerweij)\
**Replies:** 7\
**Last updated:** [October 15, 2022, 3:07pm UTC](https://discourse.julialang.org/t/gridap-jl-field-circuit-coupling-for-magnetostatics/83069 "2022-10-15T15:07:17Z")

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Hi all, I am trying to solve a field-circuit coupled problem using the Gridap.jl package. I want to simulate the current distribution inside a high-voltage cable, as well as the associated magnetic field. This means I…

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## [\[ANN\] Announcing GridapDistributed.jl - FEM on parallel supercomputers](https://discourse.julialang.org/t/ann-announcing-gridapdistributed-jl-fem-on-parallel-supercomputers/76138)

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**Author:** [@amartinhuertas](https://discourse.julialang.org/u/amartinhuertas)\
**Replies:** 6\
**Last updated:** [June 29, 2022, 3:35am UTC](https://discourse.julialang.org/t/ann-announcing-gridapdistributed-jl-fem-on-parallel-supercomputers/76138 "2022-06-29T03:35:40Z")

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We (@santiagobadia, @amartinhuertas, and @fverdugo) are pleased to announce GridapDistributed.jl, a distributed-memory extension of Gridap.jl. It provides a massively parallel, generic toolbox written in Julia for the la…

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## [Assigning a concentrated load to a specific point in the boundary](https://discourse.julialang.org/t/assigning-a-concentrated-load-to-a-specific-point-in-the-boundary/82419)

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**Author:** [@refauhx](https://discourse.julialang.org/u/refauhx)\
**Replies:** 0\
**Last updated:** [June 8, 2022, 9:27am UTC](https://discourse.julialang.org/t/assigning-a-concentrated-load-to-a-specific-point-in-the-boundary/82419 "2022-06-08T09:27:05Z")

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Hi everyone, I am a beginner in Julia and I want to assign a concentrated load pointed downwards into the middle point of the boundary of my model. Unfortunately, this code gives me some results just when my tag used is…

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## [How to assign a concentrated load to a specific point in the boundary?](https://discourse.julialang.org/t/how-to-assign-a-concentrated-load-to-a-specific-point-in-the-boundary/82037)

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**Author:** [@refauhx](https://discourse.julialang.org/u/refauhx)\
**Replies:** 0\
**Last updated:** [June 1, 2022, 8:27am UTC](https://discourse.julialang.org/t/how-to-assign-a-concentrated-load-to-a-specific-point-in-the-boundary/82037 "2022-06-01T08:27:27Z")

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Hi everyone, I am a beginner in Julia and I want to assign a concentrated load pointed downwards into the middle point of the boundary of my model. Unfortunately, this code gives me some results just when my tag used is…

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## [Solve strain for given stress in von Mises plasticity](https://discourse.julialang.org/t/solve-strain-for-given-stress-in-von-mises-plasticity/79501)

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**Author:** [@FrootLoops](https://discourse.julialang.org/u/FrootLoops)\
**Replies:** 0\
**Last updated:** [April 14, 2022, 5:23pm UTC](https://discourse.julialang.org/t/solve-strain-for-given-stress-in-von-mises-plasticity/79501 "2022-04-14T17:23:46Z")

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Hi, I am trying to caculate for a given stress the corresponding strain in the Von Mises plasticity example. I know that this results in a non-linear equation. Not notice I have the following equations: σᵗ = C ⊡ (ϵ - ϵ…

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## [Tensor coordinate transforms for linear elasticity](https://discourse.julialang.org/t/tensor-coordinate-transforms-for-linear-elasticity/70326)

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**Author:** [@feanor12](https://discourse.julialang.org/u/feanor12)\
**Replies:** 4\
**Last updated:** [October 26, 2021, 3:08pm UTC](https://discourse.julialang.org/t/tensor-coordinate-transforms-for-linear-elasticity/70326 "2021-10-26T15:08:36Z")

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I have a linear elasticity problem in 2D (plane stress) with anisotropic material properties. I can easily calculate the displacement in the (100) plane, but I have difficulty understanding how to get the correct initia…

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## [Meshfree methods](https://discourse.julialang.org/t/meshfree-methods/51247)

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**Author:** [@FrootLoops](https://discourse.julialang.org/u/FrootLoops)\
**Replies:** 4\
**Last updated:** [December 6, 2020, 7:55pm UTC](https://discourse.julialang.org/t/meshfree-methods/51247 "2020-12-06T19:55:27Z")

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Hi, are there any known packages or modifications for meshfree methods like IGA Galerkin? I cannot find much in the internet. Maybe someone already modified JuAFEM for these kind of applications?

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## [2D Finite element analysis](https://discourse.julialang.org/t/2d-finite-element-analysis/50679)

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**Author:** [@Hrishikesh\_Das](https://discourse.julialang.org/u/Hrishikesh_Das)\
**Replies:** 2\
**Last updated:** [November 24, 2020, 11:20am UTC](https://discourse.julialang.org/t/2d-finite-element-analysis/50679 "2020-11-24T11:20:40Z")

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Hello everyone, I am very new to the Julia programming language. I am using a package JuAFEM to do a 2D plane stress linear finite element analysis of a simple square domain with boundary conditions and tensile loads to…

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## [How do I construct the initial condition in FEM for ODEProblem once, not twice?](https://discourse.julialang.org/t/how-do-i-construct-the-initial-condition-in-fem-for-odeproblem-once-not-twice/48688)

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**Author:** [@kapple](https://discourse.julialang.org/u/kapple)\
**Replies:** 3\
**Last updated:** [October 21, 2020, 4:20pm UTC](https://discourse.julialang.org/t/how-do-i-construct-the-initial-condition-in-fem-for-odeproblem-once-not-twice/48688 "2020-10-21T16:20:16Z")

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I am looking to obtain a solution approximation u = u(x, t) for a partial differential equation via FEM. I am using DifferentialEquations with the prospect utilizing its parameter estimation functionality. The parameter…

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## [FreeCAD with Julia](https://discourse.julialang.org/t/freecad-with-julia/44966)

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**Author:** [@chakravala](https://discourse.julialang.org/u/chakravala)\
**Replies:** 10\
**Last updated:** [August 15, 2020, 4:16pm UTC](https://discourse.julialang.org/t/freecad-with-julia/44966 "2020-08-15T16:16:11Z")

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Looks like the FreeCAD community has taken an interest in supporting Julia computations: https://forum.freecadweb.org/viewtopic.php?f=8&t=42400

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## [\[ANN\] Gridap.jl: A feature-rich Finite Element ecosystem 100% in Julia](https://discourse.julialang.org/t/ann-gridap-jl-a-feature-rich-finite-element-ecosystem-100-in-julia/42824)

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**Author:** [@fverdugo](https://discourse.julialang.org/u/fverdugo)\
**Replies:** 49\
**Last updated:** [August 17, 2020, 3:54pm UTC](https://discourse.julialang.org/t/ann-gridap-jl-a-feature-rich-finite-element-ecosystem-100-in-julia/42824 "2020-08-17T15:54:32Z")

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We (@santiagobadia and @fverdugo) are happy to announce Gridap.jl a new Finite Element framework written in Julia for the numerical simulation of a wide range of mathematical models governed by partial differential equat…

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## [Understand apply! of JuAFEM](https://discourse.julialang.org/t/understand-apply-of-juafem/35325)

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**Author:** [@koehlerson](https://discourse.julialang.org/u/koehlerson)\
**Replies:** 9\
**Last updated:** [February 29, 2020, 5:44pm UTC](https://discourse.julialang.org/t/understand-apply-of-juafem/35325 "2020-02-29T17:44:05Z")

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Hey there, I’m new to Julia and I wanted to transport my existing FEM Code written with FEniCS in C++ to JuAFEM code. First of all thanks to the developers of the package! My problem is a SUPG stabilized advection diff…

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## [Finite element mesh interface](https://discourse.julialang.org/t/finite-element-mesh-interface/33325)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 19\
**Last updated:** [January 16, 2020, 8:51am UTC](https://discourse.julialang.org/t/finite-element-mesh-interface/33325 "2020-01-16T08:51:24Z")

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Dear all, Do you know a paper, book or any published material that attempts to define an interface for general finite element meshes? I am in the process of finalizing a proposal interface, and would like to share it w…

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