non-destructive testing & evaluation methods are developed to inspect and investigate materialsand structures. ultrasonic testing is an ndt method can be used for measuring the thickness ofobjects, as one of its significant applications. the objective of this paper is designing and applyingan intelligent ut fuzzy control system for evaluating the thickness of thin metal objects in a rangeof...

corrosion of reinforcing steel and other embedded metals is the main cause of severe deterioration in reinforced concrete structures which subsequently imposes adverse effects on ultimate and serviceability limit state performance of the whole structure. in this paper, a new corrosion detection method for reinforced concrete beams, based on wavelet analysis is presented. to evaluate the capabil...

Ceramic Matrix Composites (CMC) are promising materials for high-temperature applications where damage tolerant failure behavior is required. Non-destructive testing essential process development, monitoring, and quality assessment of CMC parts. Air-coupled ultrasound (ACU) a fast cost-efficient tool non-destructive inspections large components with respect to the detection material inhomogenei...

Abstract Traditional visual inspections of existing infrastructure have limitations such as safety risks, limited accuracy for subsurface defects, and subjective assessments. Modern inspection techniques like terrestrial laser scanning, closerange photogrammetry (CRP), infrared scanning offer faster more accurate data collection, allowing informative precise descriptions objects, while minimizi...

abstract: Periodic inspections in reinforced concrete structures are important to be carried out assess their state of conservation. In this scenario, non-destructive tests can a suitable option since destructive invasive and may difficult performed some cases. Considering option, correlations between test parameters the properties analyzed useful tools that make easier structure inspection. pr...

The process industry is increasingly making use of Risk Based Inspection (RBI) techniques to develop cost and/or safety optimal inspection plans. This paper proposes an adaptive Bayesian decision model to determine these optimal inspection plans under uncertain deterioration. It uses the gamma stochastic process to model the corrosion damage mechanism and Bayes’ theorem to update prior knowledg...

data is considered Confidential or Proprietary business information and not subject to mandatory disclosure under the Freedom of Information Act or its predecessor statutes. This report reviews three decades (1970-1999) of engineering and research efforts to quantify capability and reliability of non-destructive inspections in aerospace and other industries. The Air Force provided an initial se...