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Structural / Contact

Hertz Contact and Contact Stress Simulators

A hub for curved contact problems: Hertz stress, line and elliptical contacts, subsurface stress, rolling contact, and adhesive contact.

11 related simulators

This hub groups closely related tools with static links. Individual simulator URLs stay unchanged while users can move quickly to the right calculation.

Core simulators
Hertz Contact Stress Calculator
Interactive Hertz contact stress calculator for sphere-sphere, sphere-flat, and cylinder contacts.
Hertz Line Contact Simulator — Two Cylinders, Half-Width & Max Pressure
Hertz line contact simulator for two parallel cylinders.
Elliptical Hertz Contact Simulator — General Hertzian Contact
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 prin...
Hertz Contact Mechanics Calculator — Contact Radius, Pressure & Deflection
Calculate Hertz contact pressure, radius, and deflection for spheres, cylinders, or flat geometries.
Ball Bearing Hertz Contact Stress Simulator
Ball bearing Hertz contact stress simulator: enter ball size, count, pitch diameter and total load to compute the per-ball peak load and inner / outer r...
Rolling Contact Stress & Hertz Theory Calculator
Calculate rolling contact stress using Hertz theory.
Rolling Contact Fatigue & Pitting Resistance Calculator
Calculate Hertz contact pressure, shear stress, and L10 fatigue life in real time.
Wheel-Rail Contact Simulator
The wheel-rail contact simulator analyzes elliptical Hertz contact and computes the contact ellipse semi-axes, maximum contact pressure and adhesion-lim...
Hertz Subsurface Stress Simulator
Keeps contact pressure, local stress, and fatigue margin inside the same specialist cluster for easier navigation.
JKR Adhesive Contact Simulator — Soft Elastic Pull-off
JKR (Johnson-Kendall-Roberts) adhesive contact simulator for soft elastic spheres.
Stress Concentration Factor Kt Calculator
Calculate stress concentration factor Kt for holes, shafts & notches in real time.

Explore by task

Hertz contact basics

Hertz Contact Stress Calculator Hertz Line Contact Simulator — Two Cylinders, Half-Width & Max Pressure Elliptical Hertz Contact Simulator — General Hertzian Contact Hertz Contact Mechanics Calculator — Contact Radius, Pressure & Deflection

Rolling contact and bearings

Ball Bearing Hertz Contact Stress Simulator Rolling Contact Stress & Hertz Theory Calculator Rolling Contact Fatigue & Pitting Resistance Calculator Wheel-Rail Contact Simulator

Subsurface and adhesive contact

Hertz Subsurface Stress Simulator JKR Adhesive Contact Simulator — Soft Elastic Pull-off

Adjacent local stress tools

Stress Concentration Factor Kt Calculator

Related categories

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FAQ

Where is Hertz contact stress important?
It matters in rolling bearings, gears, cams, rails, rollers, and any component where curved surfaces meet over a small contact patch.
Should I focus on maximum pressure or subsurface stress?
Maximum pressure is tied to surface damage, while subsurface shear is tied to rolling fatigue and internal cracking. Checking both gives a better safety picture.
Is contact analysis different from stress concentration analysis?
Contact analysis treats pressure over an interface. Stress concentration analysis treats local stress near holes, notches, and geometric discontinuities. Both are local failure checks.