Soderberg Criterion Calculator
The yield-conservative cousin of Goodman for no-permanent-set designs.
By anchoring to YIELD instead of ultimate, Soderberg guarantees zero plastic set ever โ the right call for precision shafts and sealing surfaces, overkill for brackets.
Formula
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates โ verify with a qualified professional before making decisions. Read the full disclaimer.
Soderberg Criterion Calculator is a free soderberg criterion for design engineers, metallurgists and QA inspectors โ instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Soderberg Criterion Calculator
The yield-conservative cousin of Goodman for no-permanent-set designs. The calculation implements ฯ_a/S_e + ฯ_m/S_y = 1/n (Soderberg (1930); machine design texts). By anchoring to YIELD instead of ultimate, Soderberg guarantees zero plastic set ever โ the right call for precision shafts and sealing surfaces, overkill for brackets.
How to use Soderberg Criterion Calculator
- 1Enter Stress amplitude ฯ_a in MPa.
- 2Enter Mean stress ฯ_m in MPa.
- 3Enter Endurance limit S_e in MPa.
- 4Enter Yield strength S_y in MPa.
- 5Read Soderberg safety factor instantly โ no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Soderberg Criterion Calculator?
- โImplements the standard formula โ ฯ_a/S_e + ฯ_m/S_y = 1/n
- โReference cited on-page: Soderberg (1930); machine design texts
- โOne-click SI โ Imperial toggle โ values convert in place, physics stays in SI
- โRuns entirely in your browser โ nothing uploaded, free forever
Frequently asked questions
What formula does the Soderberg Criterion Calculator use?+
It computes ฯ_a/S_e + ฯ_m/S_y = 1/n, per Soderberg (1930); machine design texts. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
By anchoring to YIELD instead of ultimate, Soderberg guarantees zero plastic set ever โ the right call for precision shafts and sealing surfaces, overkill for brackets.
Where do the material property defaults come from?+
Defaults are standard handbook values (ASM, manufacturer datasheets, the cited standard). Always substitute certified values from your material's test certificate for critical work.
Is the Soderberg Criterion Calculator free to use?+
Yes โ completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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