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Welcome to the NDT-RAM Technical Paper Archive! Please view the technical papers below to learn more about the theory and technology behind The Modal Shop's proven line of NDT-RAM systems.
The history, theoretical basis, implementation, and practical applications of Resonance Testing and the Resonant Acoustic Method.
An analysis of the physical properties of materials that make the Resonant Acoustic Method well-suited to detect flaws such as geometric deviations, cracks, uneven density distribution, material contamination, and more
A sensitive, structural based, Resonant Ultrasound Spectroscopy (RUS) non-destructive testing method aids in critical inspections of high pressure gas turbine blades
A quantification of the effect of crack size on the natural frequencies of powdered metal parts
A study of the effect of nodularity on the resonant frequencies of ductile iron parts
A method of applying resonant inspection for quality testing of very small powder metal components
An automated resonant inspection technique to validate resonant frequency characteristics within brake components for improved NVH performance
Resonant Inspection as an automated NDT method for sinter brazed powder metal components used to achieve zero defect (“zero PPM”) output
Non-Destructive Testing Resonant Acoustic Method, an RUS technique, plus the machine learning method RLDA as an effective solution for detailed defect classification of additively manufactured lattice structures