Materials Fatigue Evidence Scoping
Define the evidence and validation contract for fatigue assessment before claiming a dedicated computational capability.
Who this is for
Materials engineering leads, reliability and structural-integrity engineers, and technical-diligence reviewers defining the evidence required for a defensible fatigue evaluation.
The problem you already have
A plausible fatigue conclusion can outrun the loading and provenance evidence behind it
Part 37 contains a materials-fatigue and crack-propagation disclosure, but the current product truth-lock does not prove a dedicated fatigue runtime. The useful public capability is therefore to define exactly which material state, loading history, measured damage evidence and validation references would be required before any computational fatigue claim could be evaluated.
Crack-onset evidence and remaining-life prediction are not the same claim
Evidence that a measured state is consistent with crack initiation or propagation risk does not by itself justify a guaranteed remaining-life estimate. The scoping workflow keeps crack evidence, cyclic-load history, measurement uncertainty, environmental context and validation requirements separate so a narrower research question is not silently promoted into structural-life authority.
Structural release must remain with qualified engineering authority
This page remains scoping-only. BivectorAI does not authorize continued service, certify structural safety, guarantee remaining life or represent an unproven fatigue handler as active. The output is an evidence contract and supported-versus-unsupported capability decision.
Real-World Operational Scenario: The Component With a Clean Inspection but an Incomplete Load History
Scenario: A component has no newly reported crack indication, but the available cyclic-load history is incomplete across part of its service interval.
A reliability or structural-integrity team wants to know whether the evidence is sufficient to justify a bounded fatigue evaluation before anyone discusses remaining life.
WITHOUT this gate: A clean recent inspection or partial stress history can be treated as if it closes the fatigue question, even when the missing load interval or provenance gap materially limits what can be inferred.
WITH this gate: The material state, load-history coverage, measured crack/damage evidence, provenance, uncertainty and validation boundary are frozen first. Missing evidence remains explicit, and the result stays scoping-only until a supported private evaluation path is actually proven.
What BivectorAI Provides
Fatigue Evidence Contract
Defines the exact material state, loading-history scope, measurement inputs, provenance and validation question required for a defensible fatigue evaluation.
Crack / Damage Evidence Mapping
Uses Part 37 technical lineage to scope crack-onset and propagation evidence without representing that lineage as a currently deployed remaining-life predictor.
Validity & Evidence-Gap Criteria
Makes missing load history, weak provenance, unsupported material assumptions and insufficient validation evidence explicit before any stronger computational claim is considered.
Structural-Authority Boundary
Keeps safety certification, continued-service authorization, structural release and guaranteed remaining-life claims outside the service.
Prove the Gate Before Broader Integration
Validate the evidence contract against frozen historical fatigue cases before any dedicated runtime claim is considered.
Freeze the material state, loading-history fields, measurement/provenance requirements, crack/damage evidence classes, uncertainty rules and acceptance criteria before revealing the historical engineering disposition. Broader implementation is justified only if the same contract reproducibly distinguishes supported from unsupported cases. This is a proposed validation methodology, not evidence that a dedicated fatigue-life runtime already exists.
What you provide
A bounded description of the material state, loading history, measured crack/damage or inspection evidence, provenance, relevant uncertainty/context and required validation boundary. Structural-release authority and safety-certification authority are not required.
What BivectorAI actually hands you
Scoped fatigue evidence contract
The exact material, loading, measurement, provenance and validation boundary for the proposed evaluation.
Required measurement / provenance inputs
A concrete list of the evidence fields and context needed before a bounded fatigue or crack-related evaluation can be considered.
Supported / unsupported capability decision
An explicit classification of what the current evidence can support and what remains unproven, unavailable or scoping-only.
Private evaluation plan
A next-step validation plan only where implementation and evidence support a bounded private evaluation path; otherwise the result remains fail-closed.
What we will never ask you for
Fatigue and structural-integrity work sits close to release and safety decisions. The current offering is scoping only, so structural-release authority, safety certification and guaranteed remaining-life claims remain outside the engagement.
- Structural release authority.
- Safety certification.
- A guaranteed remaining-life prediction.
- A representation that an unproven fatigue runtime is active.
How it actually runs
Start with a bounded evaluation
Fixed scope / quoted per engagement. Inputs, outputs, evidence boundary and acceptance criteria are agreed before work begins.
We do not open with an annual license. If the bounded scoping review does not establish a supported evidence contract or evaluation path for the agreed fatigue question, there is no reason to move into a broader commercial commitment.
This truth-lock did not prove a dedicated materials-fatigue handler, registered service or module for this product. The current public offering is scoping only; no validated fatigue-life or structural-release capability is claimed.