Description
Padeye Combined Stress (Von Mises) Calculation
Engineering Spreadsheet — Instant Download
What This Spreadsheet Does
Evaluates the combined stress state in a padeye subject to multi-directional rigging loads — typical for offshore lifts where slings approach at non-vertical angles producing both in-plane and out-of-plane forces. Uses Von Mises yield criterion to check the combined stress against material yield.
What’s Inside the Excel File
- Inputs — padeye geometry, plate thickness, sling angles (azimuth + elevation), applied load, material yield strength
- Load resolution into Fx, Fy, Fz components
- Bending moment at base from out-of-plane load
- Stress components — σx, σy, σz, τxy, τyz, τxz
- Von Mises equivalent stress per σ_VM formula
- Utilization ratio against allowable (typically 0.6 Fy or 0.67 Fy depending on code)
Who This Is For
- Offshore lifting engineers
- Heavy lift planners with non-vertical slings
- Structural engineers verifying combined stress states
- EPC teams on subsea, offshore, and module installations
Codes & Standards Referenced
- Von Mises distortion energy yield criterion
- ASME BTH-1 — design factor approach
- DNV / Noble Denton lifting standards (philosophy)
How It Works
| 1 | Purchase — secure payment |
| 2 | Download — instant Excel access |
| 3 | Enter Values — padeye, sling angles, load |
| 4 | Get Results — Von Mises stress with utilization |
File Format & Compatibility
Microsoft Excel (.xlsx). Opens in Excel 2016+, Excel 365, Google Sheets. No macros, no locked cells.
What You Get After Payment
- ✅ Instant download (also emailed)
- ✅ Lifetime access
- ✅ Engineer email support
- ✅ 7-day refund if file fails to open
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Frequently Asked Questions
Replaces FEA?
For complex padeye geometry or fatigue analysis, FEA is preferred. This sheet handles the common combined-stress check for standard padeye shapes.
What sling angle range?
Any angle from 0° (vertical) to whatever your rigging plan permits.
Custom version needed?
Request a custom quote, or see our FEA Services.
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