Limits of Structural Health Monitoring

What this topic covers

False alarms, blind spots, environmental effects and model uncertainty.

Core monitoring ideas

Every sensor observes only a limited location, direction, bandwidth and physical quantity.

Sensor failure can mimic structural change while local damage may occur away from monitored points.

Monitoring should remain one layer of evidence in a broader integrity program.

Interpretation limits

A baseline should include normal operational and environmental variation so ordinary change is not mistaken for damage.

Evidence and data quality

Monitoring evidence should feed inspection, engineering review and maintenance rather than exist as an isolated dashboard.

Lifecycle use

Lifecycle monitoring should be re-baselined after significant repairs, modifications or sensor-system changes.