FEA ranking — rear.stl

20260807T085021305709Z · PLA E=3500 MPa · gmsh + CalculiX · ranking only

This page ranks relative shell stiffness under a few static PLA loads (“does this rib help?”). It is not a drop test and not certification evidence.

Daily HOWTO: handheld/review/FEA-HOWTO.md · CE brief: handheld/review/cea-mechanical-drop-fea-brief.md

Badge meaning

PASS
Solver finished. Warnings still matter — not “design OK”.
SKIP
No mesh nodes in the load/fix region (often wrong half).
FAIL
Mesh/solver/pipeline error — fix and re-run.

STL

SHA-1 2505c885fcdf4f95ce043f69e8675cf74629ce25

/tmp/aesl-fea/stls/rear.stl

Press the face centre (thumb on screen) SKIP

no nodes in load/fix region

1665328 elems · fixed 544517 · loaded 0 · F=[0, 0, -30] N

max defl — mm · peak σvm — MPa · SF —

Bend across the long axis (grip + push) PASS

solver finished — not design OK

1665328 elems · fixed 4244 · loaded 4203 · F=[0, 0, -20] N

max defl 8.9389 mm · peak σvm 32.615 MPa · SF 1.53

Diagonal twist (one corner up) PASS

solver finished — not design OK

1665328 elems · fixed 2016 · loaded 1959 · F=[0, 0, -15] N

max defl 13.0295 mm · peak σvm 61.153 MPa · SF 0.82