Physical vs Material Properties

The reasons why a defect forms largely determine how it expresses itself to an NDT technique. For EMAR, the stress fields, fatigue moments, and changes in chemistry are measurable events just like physical defects or boundary conditions are. Elastic properties are also deterministic precursors of critical, physical defects.

But the ability to see the causes of metallurgical problems, and not only their physical symptoms, goes beyond making a more sensitive quality test. It opens the door to a new and powerful point of view among NDT practitioners in which the detection of defects migrates into the realm of part failure prediction. At Resonic we remain inspired by the idea that a true measure of quality is never objective, nor can it ever be fixed in time.