Modelling & Data · Numerical Modeling

Fatigue and Durability Checks

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…

  • Choose a fatigue method compatible with…
  • Avoid double-counting notch or surface…
  • Identify the cycles and locations driving…
  • Stress-life, strain-life, or…
TESTDOG illustrative Numerical Modeling laboratory and engineering equipment scene
Price
Request a quote
Confirmed after technical review
Turnaround
Confirmed after project review
Confirmed after technical review
Typical outputs
Life or damage contoursCritical load-cycle rankingDurability improvement actions

Why this service

What Fatigue and Durability Checks can help you understand

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…

01

Choose a fatigue method compatible with the available data.

Stress-life, strain-life, or cumulative-damage analysis

02

Avoid double-counting notch or surface factors.

Constant- or variable-amplitude loading

03

Identify the cycles and locations driving damage.

Sensitivity to material curve and duty-cycle assumptions

Choose the scope

Start from the question, not the tool

The method, preparation route and reporting depth depend on what you need to decide.

Stress-life, strain-life, or cumulative-damage analysis

Choose a fatigue method compatible with the available data.

Best used when
Choose a fatigue method compatible with the available data.
Typical result
Life or damage contours
Preparation note
Declare confidentiality, file, access or delivery constraints in advance.

Common outputs

A result package matched to the decision you need to make

Fields, conditions, processing and file formats are confirmed before work begins.

StandardLife or damage contours

A representative output from Fatigue and Durability Checks with agreed units, labels, and revision status.

StandardCritical load-cycle ranking

Checks, tolerances, convergence, uncertainty, or inspection evidence appropriate to the service.

OptionalDurability improvement actions

A concise interpretation connecting the deliverable to the customer decision.

Input requirements

What to provide before work begins

Provide representative, clearly labelled inputs and identify the decision, feature or comparison that matters.

Suitable inputSubmission requirementPlanning note
Project input or design fileProvide 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

Common planning decisions

Short answers to issues that can change preparation, scope, timing or interpretation.

What inputs are needed for Fatigue and Durability Checks?

A clean CAD model or dimensioned geometry, with the required units and coordinate system.

Which service option should I choose?

Start with Stress-life, strain-life, or cumulative-damage analysis; the final option is confirmed against the required decision and acceptance criteria.

What will I receive?

Typical outputs include life or damage contours, critical load-cycle ranking, durability improvement actions. Final files follow the confirmed reporting scope.

How long will it take?

Delivery timing is confirmed after the project inputs, scope and dependencies have been reviewed.

Request a project quotation

Send the information needed to scope Fatigue and Durability Checks correctly

  • Current design, files, inputs and constraints
  • Feature or decision the result must address
  • Required comparison, acceptance criterion or reference
  • Preferred output and reporting depth
Fatigue and Durability ChecksRequest a quote

Typical turnaround: Confirmed after project review

Request a quote