Projected Bearing Stress
Estimate nominal bearing stress where a pin loads a plate.
Try this formula
Calculate nominal compressive bearing stress magnitude or choose another supported quantity.
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Try this formula
Calculate nominal compressive bearing stress magnitude or choose another supported quantity.
Use decimals or scientific notation, such as 1.2e3. Calculations update as you type.
Nominal compressive bearing stress magnitude
Enter the known values to see the result.
Use the projected contact area t times d for one plate. The contact pressure is nonuniform; this formula gives a nominal compressive magnitude. Check tear-out, net-section tension, and pin shear separately.
Difficulty
Intermediate
Read time
5 min
Prerequisites
Basic algebra, mechanics, and consistent SI units
Source
Donney Fan — MECH 360 — Mechanics of MaterialsReference equation: Stress & Strain — Bearing stress. FormuLab wrote new explanations, assumptions, applications, and numerical examples.
Definition
The curved contact between a pin and a hole is represented by its projected rectangular area. A thicker plate or larger pin spreads the same force over more projected area.
Variables & Units
| Symbol | Meaning | Units |
|---|---|---|
| Nominal compressive bearing stress magnitude | ||
| Force transferred by the pin | ||
| Plate thickness | ||
| Pin diameter |
Real-World Applications
Bolted joints
Estimate bearing demand on a connected plate.
Clevis design
Compare the nominal bearing demand on each lug.
Worked Example
Problem
A pin transfers 10,000 N into a plate 0.01 m thick. The pin diameter is 0.02 m. Find the nominal bearing stress.
Given
Solution
Final Answer
Contents
Info
Tools
Source & review
Reference equation: Stress & Strain — Bearing stress. FormuLab wrote new explanations, assumptions, applications, and numerical examples.
Assumptions
- • Use the projected contact area t times d for one plate.
- • The contact pressure is nonuniform; this formula gives a nominal compressive magnitude.
- • Check tear-out, net-section tension, and pin shear separately.
Languages
FormuLab is a study reference. Verify formulas, units, assumptions, and course-specific conventions before relying on them.