Finite Element Method

FEM Tools

Interactive finite-element analysis tools for structural members — slider-only inputs, Three.js 3D viewer, ACI 318-19M / NSCP 2015 design checks, and a branded PDF report. Runs entirely in the browser.

RC Beam FEM Analyzer

Linear finite-element analysis of a reinforced-concrete beam — simply supported, cantilever or fixed-fixed — with full ACI 318-19M flexural & shear design checks.

Free Web Tool FEM New
  • Slider-only input — b, h, span, materials, loads, rebar
  • Euler-Bernoulli beam element with cubic Hermite shape functions
  • Shear, moment, deflection envelope diagrams (Chart.js)
  • 3D Three.js viewer with supports, load arrows, deformed shape
  • ACI 318-19M flexural, shear, ρ-min/max, stirrup spacing, δ ≤ L/360
  • Branded RHCES PDF calculation report (client-side jsPDF)
Open RC Beam FEM

Hollow Core Slab FEM Analyzer

Slider-only finite-element analysis of a precast prestressed hollow core slab — full 3D visualization, ACI 318-19M / NSCP 2015 design checks, branded PDF report.

Free Web Tool FEM New
  • 22 sliders — geometry, materials & prestressing, loads, solver
  • 3D viewer with circular voids, prestress strands, topping & bearing pads
  • Closed-form Levy-series orthotropic plate solver (no backend required)
  • ACI 318-19M φMn, φVc, service stresses, camber & deflection limits
  • Import ConciseBeam section — voids follow the actual section shape
  • Branded RHCES PDF calculation report (cover, envelopes, design table)
Open Hollow Core Slab FEM

Precast Beam FEM Analyzer

Linear finite-element analysis of a 3D precast concrete beam — rectangular, inverted-tee or L-ledger section — with a live Three.js deformed-shape model driven entirely by sliders.

Free Web Tool FEM New
  • Slider-only input — span, section, mesh, materials & loads
  • Three section types — rectangular, inverted-tee, L-ledger
  • Euler-Bernoulli beam elements with cubic Hermite shape functions
  • Simply-supported, cantilever or fixed-fixed supports
  • Single 3D canvas — live deformed shape, FE nodes, loads
  • Deflection, moment, shear, reactions & fibre stresses
Open Precast Beam FEM

More FEM modules coming soon.