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Non Destructive Evaluation Articles & Analysis
15 articles found
Modern aircraft engines generate enormous amount of internal stress—from high temperatures to rotational forces and corrosive airflows. As components wear, accumulate residue, or exhibit early signs of fatigue or overheating, professional maintenance teams rely on precise diagnostic information to determine the appropriate corrective action. According to aviation maintenance guidelines and ...
In modern manufacturing and engineering, precision is more than a goal—it’s a necessity. Whether producing aerospace components, medical devices, or semiconductor chips, manufacturers must ensure every part conforms to tight tolerances and quality control standards. This is where industrial metrology plays a crucial ...
Abstract We have designed and built a longitudinal wave and several shear wave contacting arrays for the nondestructive evaluation of aluminum. The arrays each have 32 elements and operate at a center frequency of 3 MHz . Side drilled holes and EUM slots of different orientations (all of which are in aluminum sample blocks) are imaged using these arrays in a real-time synthetic aperture imaging ...
Abstract The basic design criteria for SAW transducers is typically a flat frequency response. design criteria for bulk wave transducers in nondestructive evaluation and medical imaging is the compactness of the impulse response. This criteria is different from the usual flat frequency response criteria because a flat bandwidth does not necessarily imply a compact impulse response. Aniterative ...
In addition, it offers analysis tools for the evaluation of inspection images and signals as well as the possibility of secure (long-term) archiving. ...
Nondestructive evaluation (NDE) offers companies a vital means of inspecting components for hidden flaws and discontinuities without destroying or dismantling the materials being inspected. Incorporating NDE inspections into a larger routine maintenance schedule is a smart investment. Supplying analysts with high-quality, high-performance equipment helps ensure high-quality data and ultimately ...
The present study deals with the application of non–destructive radio isotopic tracer technique to evaluate the performance of nuclear grade resins Tulsion A–30 and Dowex 550A LC. The evaluation was made by testing the performance of the two resins during iodide and bromide ion–isotopic exchange reactions. ...
It is essential to determine the safety of the structures by Non–Destructive Testing (NDT) for evaluation of strength/integrity. ...
Non–destructive techniques play an important role in the condition assessment and evaluation of reinforced and pre–stressed concrete structures and also serve as a forensic tool in identifying various parameters such as thickness, presence of reinforcement, spacing, cover thickness, presence of other elements such as PVC pipes, steel embedment, ...
The review performed focuses on two main areas, namely non-destructive examination of the embrittlement condition and fracture and Charpy toughness determination, including specimens size and constrain issues.Keywords: nuclear knowledge management, WWER reactors, reactor pressure vessels, RPV steel, radiation embrittlement, property?property correlation, nuclear ...
The radiation field parameters are used for non-destructive evaluation of the radiation damage of reactor vessel and its internals and claddings, and therefore for planning ways for improving both operation and plant life extension. Harmonisation of calculation and measurement methods for use in WWER, PWR and BWR design and structural integrity ...
A non-destructive evaluation procedure for identifying defects using finite element (FE) model updating based on natural frequencies is presented in this paper. ...
Chloride-induced reinforcement corrosion is the principal cause of deterioration of concrete structures in the Arabian Gulf and the world over. Preventive measures against corrosion require maintaining the chloride and sulphate concentration in concrete below the threshold limits specified by the standards. This requires monitoring the chloride and sulphate concentration in concrete, and a ...
Two premier issues in eddy current testing, namely the automatic identification of cracks from their noisy backgrounds and the sizing of cracks with complex morphologies, are dealt with in this paper. A signal processing method based on statistical pattern recognition is established to realise automatic crack identification, and a method for estimating crack depth is proposed, using a new ...
The performance of a Fourier Transform-Near Infrared (FT-NIR) Instrument for fruit quality evaluation was investigated using pear fruits. Partial Least Squares (PLS) regression was carried out describing relationships between the data sets of laboratory data and the FT-NIR spectra. Besides cross and test set validation, the established models were subjected to a further ...