How does the accuracy of defect sizing affect the structure's integrity?

The accuracy of defect sizing plays a critical role in assessing a structure's integrity because it directly influences how well potential weaknesses are identified and evaluated. When defects are inaccurately sized, there is a risk that the true extent of the damage may be underestimated or overestimated. This misjudgment can compromise structural strength, leading to potentially unsafe conditions.

If a defect is smaller than it actually is, engineers might underestimate the severity of the problem and neglect necessary repairs or reinforcements, which could result in failure during service conditions. Conversely, if defects are overstated, unnecessary repairs may be initiated, wasting resources and possibly leading to more extensive maintenance work than needed.

Understanding defect sizes accurately allows for informed decision-making regarding the safety, maintenance, and operational life of the structure, ensuring that its integrity is maintained under expected load conditions. This highlights the importance of precise defect sizing in non-destructive testing, which ultimately ensures the longevity and safety of engineering structures.