Choose a fatigue method compatible with the available data.
Stress-life, strain-life, or cumulative-damage analysis
Modelling & Data · Numerical Modeling
Fatigue and durability checks convert cyclic stress or strain histories into life, damage, or crack-initiation indicators using an appropriate S-N, strain-life, or duty-cycle method and clearly stated mean-stress and…
Why this service
Fatigue and durability checks convert cyclic stress or strain histories into life, damage, or crack-initiation indicators using an appropriate S-N, strain-life, or duty-cycle method and clearly stated…
Stress-life, strain-life, or cumulative-damage analysis
Constant- or variable-amplitude loading
Sensitivity to material curve and duty-cycle assumptions
Choose the scope
The method, preparation route and reporting depth depend on what you need to decide.
Choose a fatigue method compatible with the available data.
Avoid double-counting notch or surface factors.
Identify the cycles and locations driving damage.
Common outputs
Fields, conditions, processing and file formats are confirmed before work begins.
A representative output from Fatigue and Durability Checks with agreed units, labels, and revision status.
Checks, tolerances, convergence, uncertainty, or inspection evidence appropriate to the service.
A concise interpretation connecting the deliverable to the customer decision.
Input requirements
Provide representative, clearly labelled inputs and identify the decision, feature or comparison that matters.
| Suitable input | Submission requirement | Planning note |
|---|---|---|
| Project input or design file | Provide the current design, objective, constraints and required deliverables for technical review. | Declare confidentiality, file, access or delivery constraints in advance. |
Objective: state the decision, comparison or acceptance criterion the work must support.
Handling and access: declare hazards, instability, confidentiality, file constraints or special logistics before dispatch or transfer.
Questions and answers
Short answers to issues that can change preparation, scope, timing or interpretation.
A clean CAD model or dimensioned geometry, with the required units and coordinate system.
Start with Stress-life, strain-life, or cumulative-damage analysis; the final option is confirmed against the required decision and acceptance criteria.
Typical outputs include life or damage contours, critical load-cycle ranking, durability improvement actions. Final files follow the confirmed reporting scope.
Delivery timing is confirmed after the project inputs, scope and dependencies have been reviewed.
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Typical turnaround: Confirmed after project review
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