Ultrasonic Modulus Calculator
Elastic modulus from longitudinal sound velocity and density — NDT in action.
UPV testers grade concrete this way: above 4.5 km/s is 'excellent'. The ν correction matters — skipping it overstates E by ~35% for metals.
Formula
Ultrasonic Modulus Calculator is a free ultrasonic modulus for design engineers, metallurgists and QA inspectors — 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 Ultrasonic Modulus Calculator
Elastic modulus from longitudinal sound velocity and density — NDT in action. The calculation implements ρv² = E(1−ν)/((1+ν)(1−2ν)) — solved for E (ASTM E494; IS 13311 (UPV of concrete)). UPV testers grade concrete this way: above 4.5 km/s is 'excellent'. The ν correction matters — skipping it overstates E by ~35% for metals.
How to use Ultrasonic Modulus Calculator
- 1Enter Longitudinal wave velocity in m/s (Steel 5,900 · Al 6,320 · concrete 3,500–4,500).
- 2Enter Density in kg/m³.
- 3Enter Poisson's ratio.
- 4Read Young's modulus, Constrained modulus ρv² instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Ultrasonic Modulus Calculator?
- ✓Implements the standard formula — ρv² = E(1−ν)/((1+ν)(1−2ν)) — solved for E
- ✓Reference cited on-page: ASTM E494; IS 13311 (UPV of concrete)
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Ultrasonic Modulus Calculator use?+
It computes ρv² = E(1−ν)/((1+ν)(1−2ν)) — solved for E, per ASTM E494; IS 13311 (UPV of concrete). The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
UPV testers grade concrete this way: above 4.5 km/s is 'excellent'. The ν correction matters — skipping it overstates E by ~35% for metals.
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 Ultrasonic Modulus Calculator free to use?+
Yes — 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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