FEM project

This is the project plan for the FreeCAD FEM integration as part of the Development roadmap.

Units

Units

Length	Time	Mass	Force	Pressure	Velocity	Density	Energy	Gravity
m	s	kg	kg m/s2	N/m2	m/s	kg/m3	kgm2/s2	9.81
m	s	kg	N	Pa	m/s	m kg/l	J	9.81
m	s	g	mN	mPa	m/s	micro kg/l	mJ	9.81
m	s	Mg (ton)	kN	kPa	m/s	kg/l	kJ	9.81
m	ms	kg	MN	MPa	km/s	m kg/l	MJ	9.81e-6
m	ms	g	kN	kPa	km/s	micro kg/l	kJ	9.81e-6
m	ms	Mg (ton)	GN	GPa	km/s	kg/l	GJ	9.81e-6
mm	s	kg	mN	kPa	mm/s	M kg/l	micro J	9.81e+3
mm	s	g	micro N	Pa	mm/s	g/mm3	nJ	9.81e+3
mm	s	Mg (ton)	N	MPa	mm/s	Mg/mm3	mJ	9.81e+3
mm	ms	kg	kN	GPa	m/s	M	kg/l J	9.81e-3
mm	ms	g	N	MPa	m/s	k kg/l	mJ	9.81e-3
mm	ms	Mg (ton)	MN	TPa	m/s	G kg/l	kJ	9.81e-3
cm	ms	g	daN	10^5 Pa (bar)	dam/s	kg/l	dJ	9.81e-4
cm	ms	kg	10^4 N (kdaN)	10^8 Pa (kbar)	dam/s	k kg/l	hJ	9.81e-4
cm	ms	Mg (ton) 10^7	N(MdaN)	10^11 Pa (Mbar)	dam/s	M kg/l	10^5 J	9.81e-4

Brainstorming

Potential meshers

See FEM Mesh

Potential solvers

See FEM Solver

FEM

• FEM Analysis

• Materials: Solid, Fluid, Nonlinear mechanical; Material editor

• Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)

---

Constraints

• Electrostatic: Potential

• Fluid: Initial velocity, Fluid boundary, Flow velocity

• Mechanical: Fixed, Displacement, Plane rotation, Contact, Transform, Force, Pressure, Self weight, Bearing, Gear, Pulley

• Thermal: Initial temperature, Heat flux, Temperature, Heat source

---

• Mesh: Mesh Netgen, Mesh GMSH, Mesh boundary layer, Mesh region, Mesh group, Nodes set, Mesh to mesh

• Solve: Calculix tools, CalculiX, Elmer, Z88; Equations: Heat, Elasticity, Electrostatic, Flux, Flow; Solver: Solver control, Solver run

• Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Create warp vector filter, Create scalar clip filter, Create cut filter, Create clip filter, Create data along line filter, Create linearized stresses,

Create data at point filter, Create functions

• Utilities: Clipping plane, Remove clipping planes; Mesh clear, Mesh display info

---

• Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Project, FEM Concrete; FEM Element Types

User documentation

• Getting started
• Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
• Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties; Help FreeCAD, Donate

---

• Help: Tutorials, Video tutorials
• Workbenches: Std Base; Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
• Deprecated or unmaintained workbenches: Complete, Drawing, Robot

---

• Addons: Addon Manager, External workbenches, Scripting and macros

---

• Hubs: User hub, Power users hub, Developer hub