I’m willing to bench CalculiX performances on some platforms but I lack representative test cases.
Can I find somewhere datasets for static analysis that are open and large enough to challenge solvers behind?
actually it’s quite simple using CalculiX CGX, as in my previous large test case of solver type selections. i just create simple square plate (extruded) and mesh it based on edge division which can be fully controlled to highest density as desired.
apply some boundaries support and loads, due to self weight, mass or modal analysis are simple enough.
below is example input file to generate model and calculation, you can try to observe about edge division and element type (line number 8&9)
model generates file (*.fbd)
pnt p1 0 0 0 pnt p2 100 0 0 line l1 p1 p2 8 seta lg1 l1 swep lg1 fg1 tra 0 100 0 8 seta sg1 A001 swep sg1 bg1 tra 0 0 10 2 div all mult 2 elty all he20 mesh all send all abq seta support A003 A004 A005 A006 comp support do send support abq spc 123
input file (*.inp)
*INCLUDE,INPUT=all.msh *BOUNDARY *INCLUDE,INPUT=support_123.bou *MATERIAL, name=Steel *ELASTIC 210000,0.3,0 *DENSITY 7.85e-9 *SOLID SECTION, ELSET=Eall, MATERIAL=Steel *STEP *STATIC *DLOAD Eall,GRAV,9810.,0.,0,-1.0 *EL FILE S,E *NODE FILE U *END STEP
Thanks for the tip, it does the trick!