Structural Analysis Simulators

Adhesive Joint Stress Analysis Calculator (Volkersen & Hart-Smith)

Analyze shear & peel stress in bonded lap joints using Volkersen & Hart-Smith models.

Aeroelastic Flutter Speed Calculator — 2DOF Wing Section Analysis

Calculate flutter and divergence speeds for a 2-DOF wing section in real time. Explore V-g and V-omega diagrams with interactive animations.

Arch Structure & Thrust Line Calculator

Beam & Flexural Analysis

Calculate horizontal thrust and reactions for three-hinged arches. View real-time thrust line and force diagrams with this structural analysis tool.

Beam-Column Buckling & P-M Interaction Diagram

Beam & Flexural Analysis

Real-time EN 1993-1-1 steel beam-column buckling check. Plot your design point on the P-M interaction diagram for an instant PASS/FAIL verification.

Beam Deflection & Stress Analysis Tool

Beam & Flexural Analysis

Real-time beam deflection, bending moment, and shear force calculator. Supports simply supported and cantilever beams with point loads and uniform distributed loads.

Overhanging Beam Simulator — Reactions, SFD, BMD & Tip Deflection

Beam & Flexural Analysis

Compute reactions, peak bending moment and tip deflection of an overhanging beam in real time.

Beam Shear Stress Distribution Simulator

Beam & Flexural Analysis

Beam Shear Stress Distribution Simulator compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Beam Cross-Section Properties Visualizer — Second Moment of Area, Section Modulus

Beam & Flexural Analysis

Visualize beam cross-section properties instantly. Adjust dimensions with sliders to see Ix, Iy, Zx, Zy, radius of gyration, and bending stress distribution.

Bimetal Thermostat Simulator — Thermal Bending of a Two-Layer Strip

Beam & Flexural Analysis

Bimetal thermostat simulator using Timoshenko formula to model thermal bending of two-layer strips.

Blast Wave Simulator — Sedov-Taylor Scaling & Overpressure

Explore blast wave physics: Sedov-Taylor scaling for radius and Hopkinson-Cranz curves for overpressure. Simulate blast effects on structures.

Bolt Group Eccentric Simulator

Bolt Group Eccentric Simulator: analyze eccentric shear loads, calculate direct shear, moment forces, and bolt utilization in structural connections.

Bolt Thread Root Combined Stress Simulator

Calculate the combined von Mises stress of axial tension and torsion at a bolt thread root during tightening, from ISO thread, property class, preload and friction.

Bolted Connection Strength Calculator

Calculate bolt stress, safety factor & allowable load instantly. Enter bolt diameter, grade, quantity & applied loads for your CAE design verification.

Bolted Flange Joint Calculator (ASME, Gasket Seating, Leakage Check)

Design bolted pipe flanges per ASME Sec.VIII. Calculate bolt load for gasket seating, operating conditions, leakage margin, and bolt stress.

Bridge Truss Design Simulator — Build, Break & Learn Structural Mechanics

Beam & Flexural Analysis

Bridge Truss Design Simulator — Build, Break & Learn Structural Mechanics compares how member deformation, stress, and support assumptions shifts as the main assumptions…

Bridge Deck Aerodynamic Flutter Simulator

Bridge Deck Aerodynamic Flutter Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Bridge Truss FEM Analysis Simulator

Beam & Flexural Analysis

Analyze Pratt, Warren & Howe bridge trusses with FEM. See animated members light up red for tension or blue for compression under applied loads.

Column Buckling Calculator — Euler Load, Johnson Formula & Slenderness Ratio

Beam & Flexural Analysis

Calculate critical buckling load instantly.

Column Buckling Mode Shape Visualizer

Beam & Flexural Analysis

Visualize column buckling modes with animations. Calculate critical load, slenderness ratio, and effective length for various end conditions instantly.

Buckling-Restrained Brace Simulator

Beam & Flexural Analysis

Buckling-Restrained Brace Simulator focuses on member deformation, stress, and support assumptions, giving a compact read on the current case and the trend that matters …

Cable Sag Calculator

Calculate cable sag, tension, and length for any span. Visualize the exact catenary curve and its parabolic approximation instantly with this free engineering tool.

Cable-Stayed Bridge Tension Calculator — Structural Design Tool

Calculate cable tensions and cross-sections for your bridge design instantly. Input span, height, cables, and loads for a detailed, visualized analysis.

Castigliano Theorem Simulator — Deflection via Strain Energy Method

Beam & Flexural Analysis

Castigliano Theorem Simulator — Deflection via Strain Energy Method compares how member deformation, stress, and support assumptions shifts as the main assumptions chang…

Catenary Cable Tension Calculator

Calculate cable tension, length, and stress for catenary or parabolic approximations. Enter span, sag, and weight to get precise engineering results.

Centrifuge Rotor Stress Analyzer — Radial & Hoop Stress in Rotating Disks

Analyze centrifuge rotor stress profiles in real time. Adjust radius, speed, and material to visualize radial & hoop stress and calculate burst safety margins.

Sandwich Panel Analysis (Equivalent Stiffness, Core Shear, Failure Modes)

Beam & Flexural Analysis

Calculate sandwich panel bending stiffness, core shear, and failure modes. Use real-time formulas for stress, deflection, and face wrinkling limits.

Column Base Plate Bearing Pressure Simulator

Column Base Plate Bearing Pressure Simulator focuses on member deformation, stress, and support assumptions, giving a compact read on the current case and the trend that…

Advanced Column Buckling Analysis (Imperfections, P-δ Curve)

Beam & Flexural Analysis

Analyze column buckling with cross-section, end conditions, and load eccentricity. Compute Euler load, slenderness, and P-δ curve with deformation visualization.

Column Design Calculator (Steel / Concrete / Timber)

Beam & Flexural Analysis

Calculate column capacity instantly. Input load, length, material, and dimensions to get slenderness ratio, compressive strength, and utilization.

RC Column P-M Interaction Diagram Calculator — ACI 318

Beam & Flexural Analysis

Calculate ACI 318 P-M interaction diagrams for rectangular RC columns in real time. Adjust dimensions, materials, and reinforcement.

Combined Axial + Bending Stress Calculator

Beam & Flexural Analysis

Calculate combined axial and bending stress for rectangular or circular sections. Visualize stress distribution, find the neutral axis, and compute safety factors.

Composite Beam & Transformed Section Stress Calculator

Beam & Flexural Analysis

Analyze composite beams (bimetal, RC, FRP-steel) in real-time. Visualize stress, neutral axis, and calculate section properties instantly.

Sandwich Panel Structural Analysis — Bending Stiffness, Deflection & Stress

Beam & Flexural Analysis

Analyze sandwich panel bending, stress, and deflection. Input face sheet and core materials for instant structural calculations and performance results.

RC Beam Section Design Calculator (ACI 318)

Beam & Flexural Analysis

ACI 318 design calculator for concrete beams. Input dimensions & material strengths to instantly compute flexural capacity, shear strength, and reinforcement ratios.

Concrete Formwork Lateral Pressure ACI 347 Simulator

Concrete Formwork Lateral Pressure ACI 347 Simulator: Compute the design lateral pressure P_max that fresh concrete exerts on formwork using ACI 347R…

Conjugate Beam Method Simulator

Beam & Flexural Analysis

Find the slope and deflection of a simply-supported beam with the conjugate beam method (Mohr's theorem).

Elliptical Hertz Contact Simulator — General Hertzian Contact

Contact Stress

Compute the elliptical contact patch of general Hertzian contact: major semi-axis a, minor semi-axis b and peak pressure p_max from normal load and principal curvatures.

Hertz Contact Mechanics Calculator — Contact Radius, Pressure & Deflection

Contact Stress

Calculate Hertz contact pressure, radius, and deflection for spheres, cylinders, or flat geometries. Input materials and load for instant results.

Container Ship Stacking Load Simulator

Container Ship Stacking Load Simulator: A real-time tool for evaluating how many container tiers a bay can carry, and how much force the bottom-tier…

Continuous Three-Span Beam Simulator — Three-Moment Equation

Beam & Flexural Analysis

Continuous Three-Span Beam Simulator — Three-Moment Equation compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Continuous Beam Analysis Calculator

Beam & Flexural Analysis

Calculate support moments, reactions, and diagrams for multi-span beams. using the three-moment equation for engineers and students.

Crane Load & Wire Rope Tension Calculator

Calculate crane load, wire rope tension, SWL & breaking strength. Adjust rope falls, sling angle & sheave efficiency with this .

Curved Beam Stress Simulator

Beam & Flexural Analysis

Curved Beam Stress Simulator updates live numeric results and charts as inputs change, supporting early design checks and model review.

Gravity Dam Water Pressure & Stability Calculator — Overturning, Sliding, Base Stress

Calculate dam stability instantly. Adjust height, width, water depth & drainage to get safety factors against overturning, sliding, and base pressure.

DMT Adhesive Contact Simulator — Derjaguin-Muller-Toporov Theory

Contact Stress

DMT Adhesive Contact Simulator — Derjaguin-Muller-Toporov Theory compares how local stress, material strength, and life margin shifts as the main assumptions change.

Column Effective Length Simulator — Support Conditions and Buckling Load

Beam & Flexural Analysis

Compute the column effective length factor K, effective length KL, Euler buckling load Pcr and slenderness ratio for each end support condition with live charts.

Element Stiffness Matrix Simulator — 1D Bar Element

Visualize the 1D bar element stiffness matrix [k]=(EA/L)[[1,-1],[-1,1]], the starting point of the finite element method.

Euler Buckling Load Calculator

Beam & Flexural Analysis

Euler Buckling Load Calculator focuses on member deformation, stress, and support assumptions, giving a compact read on the current case and the trend that matters next.

Explosion Blast Wave Simulator — TNT Equivalence & Overpressure

Set TNT equivalent charge weight W and standoff distance R to calculate peak overpressure, shock wave velocity, positive phase duration, and specific…

Plane Truss FEM Solver

Beam & Flexural Analysis

Solve 2D trusses with the Direct Stiffness Method.

Fixed-End Moment Simulator — Clamped-Clamped Beam FEM Basics

Beam & Flexural Analysis

Fixed-End Moment Simulator — Clamped-Clamped Beam FEM Basics focuses on member deformation, stress, and support assumptions, giving a compact read on the current case an…

Flutter Speed Calculator

Analyze 2-DOF airfoil flutter with a V-g diagram. Adjust structural parameters for plunge and pitch to visualize critical speed and damping.

Plane Frame Analysis

Beam & Flexural Analysis

Analyze portal frames with the direct stiffness method. See real-time deformed shapes, bending moment diagrams, and member forces including lateral sway effects.

Freight Elevator Cab Bracket Stress Simulator

Beam & Flexural Analysis

Freight Elevator Cab Bracket Stress Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Hertz Contact Stress Calculator

Contact Stress

Interactive Hertz contact stress calculator for sphere-sphere, sphere-flat, and cylinder contacts.

Hertz Line Contact Simulator — Two Parallel Cylinders

Contact Stress

Hertz Line Contact Simulator — Two Parallel Cylinders focuses on local stress, material strength, and life margin, giving a compact read on the current case and the tren…

Influence Line Simulator — Moving Load and the Response Quantity

Draws the "influence line" in real time, showing how the reaction, shear force, and bending moment change as a unit load moves across the beam.

Isoparametric Mapping Simulator — 4-Node Quadrilateral Element

Isoparametric Mapping Simulator for 4-node quad elements.

JKR Adhesive Contact Simulator — Johnson-Kendall-Roberts Theory

Contact Stress

JKR (Johnson-Kendall-Roberts) adhesive contact simulator for soft elastic spheres.

Lateral-Torsional Buckling Simulator

Beam & Flexural Analysis

Lateral-Torsional Buckling Simulator focuses on member deformation, stress, and support assumptions, giving a compact read on the current case and the trend that matters…

2D Linear Elasticity Simulator — Plane Stress vs Plane Strain

2D Linear Elasticity Simulator — Plane Stress vs Plane Strain: A tool that compares the two assumptions used to reduce a 3D elasticity problem to 2D:…

Maxwell-Betti Reciprocal Theorem Simulator

Beam & Flexural Analysis

Maxwell-Betti Reciprocal Theorem Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Membrane Stress Simulator — Thin Shell Pressure Vessel

Calculate meridional and circumferential membrane stress for pressure vessels using Laplace-Young equation.

Membrane Structure Prestress Analysis

Beam & Flexural Analysis

Analyze membrane structure prestress. Input span, pretension, camber, and loads to compute stress, deflection, safety factor, and stability for PTFE/ETFE designs.

Structural Mode Shape Visualizer — Beam & Plate Vibration Modes

Beam & Flexural Analysis

Visualize and animate vibration mode shapes for beams and plates in real time. Calculate natural frequencies instantly for structural analysis.

Mohr's Circle Stress Analysis Tool

Interactive Mohr's circle tool: enter stress components σx, σy, τxy to visualize principal stresses, maximum shear stress, and principal angle in real time.

Moment-Curvature Simulator

Compute moment-curvature relationships for beam sections.

Joint Moment Distribution Simulator — Hardy Cross Basics

Joint Moment Distribution Simulator for Hardy Cross method.

Moment of Inertia Calculator

Calculate moment of inertia (Ixx, Iyy), section modulus, and radius of gyration for 7 shapes. Includes parallel axis theorem for beams and structural sections.

Marine Mooring Line Tension & Catenary Simulator

Marine Mooring Line Tension & Catenary Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matte…

Offshore Structure Wave Force Calculator (Morison Equation)

Calculate wave & current forces on offshore structures in real-time. Visualize Airy wave fields, compute overturning moments & KC numbers for inertia/drag analysis.

P-Delta Effect Simulator — Second-Order Effects from Axial Loads

Beam & Flexural Analysis

P-Delta Effect Simulator — Second-Order Effects from Axial Loads compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Parallel Key Stress Design Simulator

Parallel key stress design simulator for shaft-hub torque transmission.

Photoelasticity Stress Analysis — Isochromatic Fringe Pattern Visualization

Visualize isochromatic fringe patterns for stress analysis. Change geometry, load, and material to see principal stress differences in real-time.

Pipe Thermal Expansion & Stress Analysis — ASME B31.3

Calculate pipe thermal expansion, stress, and anchor forces for steel piping. Instantly compare results to ASME B31.3 allowable stress range.

Pipe Thermal Stress Calculator

Calculate thermal expansion force and stress instantly for pipes. Input temperature, material, and size for ASME B31.3 compliant results.

Piping Weight & Thermal Expansion Calculator

Piping Weight & Thermal Expansion Calculator compares how heat transfer, temperature difference, and cooling margin shifts as the main assumptions change.

Piping Thermal Expansion & Stress Calculator

Calculate pipe thermal expansion stress & loop sizing per ASME B31.3. Input geometry, view stress vs. allowable limit, and ensure safe design.

Plastic Hinge Collapse Load Simulator

Plastic Hinge Collapse Load Simulator: A ductile beam does not fail the instant its first section yields.

Plastic Section Modulus Simulator

Explore how much reserve a beam section keeps between "the instant it first yields" and "the instant the whole section yields into a plastic hinge".

Plate Buckling & Critical Stress Calculator

Beam & Flexural Analysis

Calculate critical buckling stress for plates with real-time visualization. Set geometry, material, boundary conditions, and load type.

Plate Girder Web Shear Buckling Simulator

Beam & Flexural Analysis

Plate Girder Web Shear Buckling Simulator compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Portal Frame Analysis Simulator

Beam & Flexural Analysis

Portal Frame Analysis Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Powerline Galloping Iced Conductor Stability Simulator

Powerline Galloping Iced Conductor Stability Simulator compares how electromagnetic, circuit, and transmission conditions shifts as the main assumptions change.

Pressure Vessel Nozzle Reinforcement Calculator — ASME Area Replacement

Calculate nozzle reinforcement requirements for pressure vessel openings using the area replacement method per ASME Section VIII. Check code compliance for nozzle design.

Pressure Vessel Stress Calculator (Thin-Wall, Thick-Wall & Lamé Equations)

Calculate pressure vessel wall stress with Lamé equations. for thin & thick-wall analysis, real-time results, and automatic classification.

Prestressed Concrete Losses Simulator

Prestressed Concrete Losses Simulator: The force jacked into a prestressing tendon is never fully retained.

3D Principal Stress Simulator — Eigenvalues of the Stress Tensor

3D Principal Stress Simulator — Eigenvalues of the Stress Tensor compares how vibration or acoustic response and frequency behavior shifts as the main assumptions change.

Propped Cantilever Beam Simulator — One-Degree Indeterminate Beam

Beam & Flexural Analysis

Propped cantilever beam simulator for statically indeterminate analysis: visualize reactions, bending moment, shear force, and deflection under combi…

Punching Shear Simulator

Beam & Flexural Analysis

Punching Shear Simulator compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Railroad CWR Track Buckling (Sun Kink) Simulator

Beam & Flexural Analysis

Real-time evaluation of "sun kink" — the lateral buckling that can hit continuously welded rail (CWR) on hot summer days.

Rebar Development Length Simulator

Design the development (anchorage) length a tension reinforcing bar needs so it can reach its yield strength without pulling out of the concrete.

Reinforced Concrete Section Analysis (Flexure & Shear)

Perform ACI 318 Whitney stress block analysis for RC beams. Calculate φMn, neutral axis depth, strain, and steel checks in real time.

Circular Ring & Arch Structure Calculator

Beam & Flexural Analysis

Calculate bending moments, stresses, and deflections for circular rings and arches under diametral loads or internal pressure. Real-time structural analysis tool.

Rolling Contact Stress Calculator — Hertz Contact Theory & Subsurface Stress

Contact Stress

Calculate rolling contact stress using Hertz theory. Input geometry, materials, and load to get contact radius, peak pressure, and subsurface shear stress.

Sandwich Panel Bending Calculator

Beam & Flexural Analysis

Calculate sandwich panel bending, stress, deflection & buckling in real-time. Ideal for engineers designing with composite or structural panels.

Sandwich Panel Bending Stiffness Calculator

Beam & Flexural Analysis

Calculate sandwich panel bending stiffness instantly. Select face sheet & core materials, adjust thicknesses, and get flexural rigidity (D) and deflection.

1D FEM Shape Functions Simulator

1D FEM Shape Functions Simulator: Build an intuition for shape functions, the heart of the finite element method.

Shear & Moment Diagram Simulator — Simply Supported Beam Under Combined Loads

Beam & Flexural Analysis

Simulate shear and moment diagrams for simply supported beams with combined loads.

Shear Center Calculator — Thin-Walled Section Shear Flow Visualizer

Beam & Flexural Analysis

Calculate shear center for Channel, Z, T, Angle, and I-beam sections. Visualize shear flow distribution and key section properties in real time.

Shear Flow and Shear Center of a Thin-Walled Open Section — C-Channel

Compute the shear flow q(s)=VQ(s)/I distribution of a C-channel and the shear-center distance e in real time.

Box Girder Shear Lag Simulator

Box Girder Shear Lag Simulator: In the wide top and bottom flanges of a box girder, the bending stress concentrates next to the webs and "lags" towar…

Shear Wall Lateral Stiffness Simulator

Shear Wall Lateral Stiffness Simulator: Calculate the lateral stiffness of a shear wall that resists the horizontal loads from earthquakes and wind.

SIMP Topology Optimization Simulator (2D Finite Element)

Real-time 2D topology optimization in your browser. Adjust loads, supports, and constraints to explore SIMP method designs instantly.

Slope-Deflection Method Simulator

Beam & Flexural Analysis

Slope-Deflection Method Simulator compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Cantilever Snap-Fit Design Simulator

Beam & Flexural Analysis

Design the snap-fit hooks that make plastic parts click together.

Greenhouse Snow Load Collapse Assessment Simulator

Greenhouse Snow Load Collapse Assessment Simulator: Evaluate the snow-load collapse risk of single-span pipe houses, Venlo glass greenhouses and mult…

Snow Loaded Tree Branch Bending Simulator

Beam & Flexural Analysis

Snow Loaded Tree Branch Bending Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Roof Snow Load Building Code Simulator

Roof Snow Load Building Code Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

Spline Shaft Stress Simulator

Spline Shaft Stress Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Static Equilibrium

Calculate static equilibrium for 2D rigid bodies. Set supports and loads to auto-solve reactions and view a real-time free body diagram.

Static Truss Analyzer — 2D Method of Joints & Member Forces

Beam & Flexural Analysis

Static Truss Analyzer — 2D Method of Joints & Member Forces compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Steel Connection Design Tool — Bolt & Weld Joint Calculator

Calculate bolt slip capacity and weld strength in real time. Visualize bolt patterns and identify the governing failure mode with this steel connection design tool.

Strain Gauge Bridge Calculator — Output Voltage & Temperature Error

Calculate strain gauge bridge output voltage and sensitivity. Compare all four Wheatstone bridge configurations with adjustable parameters.

Strain Gauge Rosette Simulator

Strain Gauge Rosette Simulator: Calculate in-plane strain state, principal strains, and stresses from three-gauge rosette readings with real-time Moh…

Stress Concentration Factor Kt Calculator

Calculate stress concentration factor Kt for holes, shafts & notches in real time.

Stress Tensor Visualizer — Principal Stresses & 3D Mohr's Circle

Input 6 components of a 3D stress tensor and instantly compute & plot principal stresses, Von Mises stress, Tresca stress, and 3D Mohr's circles.

Structural Fire Design Simulator (Eurocode EN 1992-1-2)

Beam & Flexural Analysis

Simulate concrete beam fire resistance per Eurocode EN 1992-1-2. Calculate 500°C isotherm penetration, effective width, and residual load capacity under ISO 834 fire.

Structural Reliability Analysis & Probability of Failure Calculator

Compute reliability index β & failure probability Pf via FORM or Monte Carlo simulation. Visualize R-S interference & required mean resistance for target reliability.

Strut-and-Tie Model — Rigid-Plastic Analysis of D-Regions

Beam & Flexural Analysis

The strut-and-tie model simulator represents the force flow in corbel D-regions with a simple truss of struts and ties and computes member forces from nodal equilibrium.

Hertz Subsurface Stress Simulator — σz, σr and τmax versus Depth

Contact Stress

Hertz subsurface stress simulator. Compute centerline σz, σr and τmax under a Hertzian sphere contact in real time; peak shear at z≈0.48a is the pitting origin.

Beam Deflection by Superposition Calculator

Beam & Flexural Analysis

Calculate beam deflection with up to 3 loads using superposition. Get deflection curves for simply-supported beams with forces, moments, or distributed loads.

Suspension Bridge & Cable-Stayed Bridge Cable Shape Calculator

Suspension Bridge & Cable-Stayed Bridge Cable Shape Calculator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the tr…

T-Beam Section Simulator — Properties & Bending Stress

Beam & Flexural Analysis

T-beam section simulator: computes centroid, moment of inertia, section modulus, plastic section modulus and shape factor of a T-shape, with bending stress visualization.

Tension Field Action Simulator

Beam & Flexural Analysis

Tension Field Action Simulator: The slender web of a plate girder buckles in shear at a low stress — but that is not failure.

Thermal Stress & Bimetal Warpage Calculator

Beam & Flexural Analysis

Calculate thermal expansion, bimetal bending & interface stress with this interactive Timoshenko theory calculator for electronics & solder joints.

Thin-Wall Pressure Vessel Stress Calculator — Hoop Stress & Von Mises

Calculate stress and safety factors for thin-wall pressure vessels. Get hoop, axial, and Von Mises stress instantly for cylindrical or spherical designs.

Thin-Walled Open Section Properties Calculator — C/Z/L/I Beam

Beam & Flexural Analysis

Calculate thin-walled open section properties for C-channel, Z, L-angle, and I-beam profiles, including shear center and warping constant.

Thin-Walled Section Shear Flow & Torsion Calculator (Bredt-Batho)

Calculate shear flow, stress, and twist for thin-walled sections.

Three-Hinged Arch Simulator

Beam & Flexural Analysis

Three-Hinged Arch Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Timber Beam Design Simulator

Beam & Flexural Analysis

Timber Beam Design Simulator: Design a simply-supported timber beam under a uniformly distributed load.

Timoshenko Beam Simulator — Tip Deflection with Shear Deformation

Beam & Flexural Analysis

Timoshenko Beam Simulator — Tip Deflection with Shear Deformation compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Topology Optimization (SIMP Method) Simulator

Optimize material layout with the SIMP method. Set parameters, apply loads, and simulate to find the stiffest structure by minimizing compliance.

Tower Crane Counter-Jib Balance Simulator

Tower Crane Counter-Jib Balance Simulator focuses on nearby design assumptions and key metrics, giving a compact read on the current case and the trend that matters next.

2D Truss Analyzer (Direct Stiffness Method / FEM)

Beam & Flexural Analysis

Analyze planar trusses with the Direct Stiffness Method.

Unit Load Method Simulator — Cantilever Beam Deflection and Rotation

Beam & Flexural Analysis

Unit Load Method Simulator — Cantilever Beam Deflection and Rotation compares how member deformation, stress, and support assumptions shifts as the main assumptions chan…

Unsymmetric Bending Simulator

Beam & Flexural Analysis

Apply a bending moment to a rectangular beam section at an angle offset from its principal axes.

Virtual Work — Unit Load Method for Truss Deflection

Beam & Flexural Analysis

Virtual Work — Unit Load Method for Truss Deflection compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Thin-Walled Torsion Simulator

Analyse the same thin-walled square tube two ways — as a closed section (an intact tube) and as an open section (the same tube with a longitudinal sl…

Floating Breakwater Wave Load Simulator

Floating Breakwater Wave Load Simulator: An interactive tool for evaluating wave attenuation and mooring design of floating breakwaters used at marin…

Morison Equation Wave Loading on Offshore Structures Simulator

Morison Equation Wave Loading on Offshore Structures Simulator focuses on vibration or acoustic response and frequency behavior, giving a compact read on the current cas…

Wheel-Rail Contact Simulator — Elliptical Hertz Contact and Adhesion Limit

Contact Stress

Wheel-Rail Contact Simulator — Elliptical Hertz Contact and Adhesion Limit compares how local stress, material strength, and life margin shifts as the main assumptions c…

Building Wind Load Calculator (ASCE 7-16)

Calculate ASCE 7-16 wind loads instantly. Enter building dimensions, exposure, and wind speed for velocity pressure (qz) and design pressure (p).

Wind Load Calculator (ASCE7 & Building Code)

Calculate wind pressure, shear, and moment per ASCE 7. Input speed, dimensions, and terrain for instant structural load results and visualizations.

Wind Pressure & Wind Load Calculator — Building Structures & CFD Design

Wind pressure & wind load calculator. Compute height-wise pressure from design wind speed, exposure and shape in real time, with base shear and overturning moment.

Wood Truss Stress-Graded Design Simulator

Beam & Flexural Analysis

Wood Truss Stress-Graded Design Simulator compares how member deformation, stress, and support assumptions shifts as the main assumptions change.

Yield Line Theory Simulator — Ultimate Load of a Rectangular Slab

The yield line theory simulator computes the ultimate distributed load of a four-edge simply supported rectangular RC slab from yield moment and aspect ratio.