CalculiX (official versions are on www.calculix.de, the official GitHub repository is at https://github.com/Dhondtguido/CalculiX).

Topic	Replies	Views	Activity
This is the captain speaking Official announcements Dear CalculiX users, some may know it, a couple of days ago I had my 65th birthday. In older times this may have meant retirement, not anymore… Official retirement age in Germany is 67, I am still in a transition period…	11	307	February 25, 2026
Survey on a CalculiX Users Conference Official announcements Dear CalculiX Users, In view of the relatively active CalculiX user base, we’ve been thinking about hosting an official CalculiX Users Conference in order to: Better get to know the CalculiX community Share applicatio…	2	121	February 27, 2026
Welcome to Discourse	0	3376	July 28, 2020
Corrugated tube (bellow) - problem with analytical verification Analysis issues	49	465	February 26, 2026
CalculiX failed to run with PrepoMax generated inp file Model setup	12	116	February 26, 2026
Is there a default umat when no user material is declared Advanced features	4	104	February 24, 2026
COUPLING and DISTRIBUTING with CPE8R Analysis issues	8	214	February 20, 2026
Select half parts / nodes of with cgx CalculiX GraphiX	2	72	February 17, 2026
About UNCOUPLED TEMPERATURE-DISPLACEMENT	4	54	February 14, 2026
RF axisymmetric with OUTPUT 3D Analysis issues	3	76	February 13, 2026
Keep getting segmentation faults on verification models when compiling on Linux ( GNU and Intel compilers ) Analysis issues	16	401	February 11, 2026
Salome-CCX-ParaView workflow issue Tool interfaces	14	96	February 10, 2026
Is it possible to print rotational dofs in .dat file? Postprocessing/Visualization	6	47	February 9, 2026
CFN and CFS values Model setup	4	35	February 9, 2026
Mortar contact pair Analysis issues	9	316	February 9, 2026
Calculix for deep drawing analysis Advanced features	6	569	February 9, 2026
How to plot set of elements in cgx CalculiX GraphiX	5	114	February 6, 2026
Contact issues in Visco analysis Analysis issues	5	119	February 6, 2026
REF Node of Pretension Section . Reaction Force Analysis issues	8	95	February 3, 2026
Introduction of categories Official announcements	7	133	February 2, 2026
Dr. Huang's CPFEM UMAT in CalculiX Advanced features	11	897	January 29, 2026
Self-contact when contact regions are unknown (Abaqus-like general contact) Advanced features	17	193	January 23, 2026
Is there an "easy" way to define self-contact? Advanced features	16	791	January 23, 2026
Voigt/Nye notation in CCX and scaling Getting started	3	163	January 21, 2026
Example check plasticity value in welding joint Examples/Tutorials	0	79	January 20, 2026
Initial velocity For shell elements Analysis issues	6	79	January 15, 2026
Acceleration output for dynamic calculations Code development	18	374	January 13, 2026
Merge nodes from elements without loosing surfaces CalculiX GraphiX	1	92	January 11, 2026
CalculiX & Mfront Tool interfaces	94	5728	January 11, 2026
Simplify Your CalculiX Simulations with Inductiva Tool interfaces	0	98	January 7, 2026

This is the captain speaking

Dear CalculiX users, some may know it, a couple of days ago I had my 65th birthday. In older times this may have meant retirement, not anymore… Official retirement age in Germany is 67, I am still in a transition period…

11

307

February 25, 2026

Survey on a CalculiX Users Conference

Official announcements

Dear CalculiX Users, In view of the relatively active CalculiX user base, we’ve been thinking about hosting an official CalculiX Users Conference in order to: Better get to know the CalculiX community Share applicatio…