Structural FEA

A free, browser-based finite element analysis (FEA) tool for structural engineers. Analyse beams, frames, and trusses directly in your browser with no installation required.

Key Features

• 3D Modeling - Create nodes, members, and complex frame structures
• Multiple Analysis Types - Linear, General (tension/compression-only), and P-Delta analysis
• Comprehensive Results - View displacements, reactions, moments, shear, axial, and torsion
• Load Cases & Combinations - Organize loads and create combinations with factors
• Section & Material Libraries - Access standard sections and materials
• Cloud Storage - Save and sync projects across devices (with account)
• No Installation - Works entirely in your browser

Quick Start

1. Open the app at /structuralfea
2. Draw nodes and members using Draw mode (Ctrl+D)
3. Apply supports by selecting nodes and setting restraints in the properties panel
4. Add loads via the context menu or Loads dialog
5. Run analysis by clicking the Run Analysis button
6. View results using the display toggles in the left sidebar

Navigation

Use the sidebar to explore specific topics:

• Getting Started - First steps and basic concepts
• Modeling - Creating geometry, sections, and materials
• Loads - Applying forces and managing load cases
• Tools - Drawing, selection, and editing tools
• Analysis - Running and configuring analysis
• Results - Interpreting and viewing results
• Reference - Keyboard shortcuts and settings