Non-Destructive Testing (NDT) Overview

What this topic covers

How different methods detect surface or internal conditions without destroying the component.

Core ideas

NDT methods respond to different physical properties and defect types.

Method capability depends on material, geometry, surface condition, access and operator qualification.

Results require interpretation against appropriate procedures and acceptance criteria.

Program tradeoffs

Coverage, access, technique limitations and uncertainty should be visible in the final record.

What good evidence looks like

Inspection findings need a closed path to engineering assessment, maintenance, monitoring or documented acceptance.

Lifecycle perspective

Formal code inspection and risk-based inspection require competent specialists and current standards.