MITC4/MITC3 plate FEM
Plate Bending Analysis Calculator
AutoDesign’s plate analysis tool performs general plate-bending finite-element analysis (MITC4 / MITC3 Mindlin–Reissner elements) for slabs and plates of arbitrary shape, directly in your browser. Define supports and loads, and read deflection and plate moments instantly.
What this calculator does
- ✓Analyze flat slabs and plates of arbitrary shape with a Mindlin–Reissner FEM
- ✓Pinned, fixed and free edge supports, plus point and line supports
- ✓Optional elastic (Winkler) bed for slab-on-grade behavior
- ✓Uniform surface pressure, point loads and line loads
- ✓Reports deflection, plate moments Mx / My, and deflection (L/n) and flexural-stress checks
Frequently asked questions
What element formulation does the plate solver use? +
It uses MITC4 (quadrilateral) and MITC3 (triangular) Mindlin–Reissner shell-bending elements, which avoid shear locking and handle both thin and moderately thick plates.
Can I model an elastic foundation under the plate? +
Yes. An optional Winkler (elastic bed) support lets you model slabs-on-grade in addition to edge/point/line supports.
What results does it report? +
Deflection contours, plate moments Mx and My, plus deflection (L/n) and flexural-stress checks against your limits.
Ready to run a design?
Open the Plate Bending Analysis Calculator in your browser — no install required.
Launch calculator