{"_id":"Fw2gMQpeCqwtAo9zE","bibbaseid":"bhardwaj-eischeid-vun-quantitativenoncontactultrasoundtestingandanalysisofmaterialsforprocessandqualitycontrol","author_short":["Bhardwaj, M","Eischeid, T","Vun, R"],"bibdata":{"bibtype":"article","type":"article","title":"QUANTITATIVE NON-CONTACT ULTRASOUND TESTING AND ANALYSIS OF MATERIALS FOR PROCESS AND QUALITY CONTROL","abstract":"Ultrasound materials testing modality has advanced dramatically with the development of extremely high air/gas transduction transducers. The advantage of not needing physical contact of the transducer to the test media has opened numerous nondestructive testing (NDT) possibilities that are not feasible by conventional ultrasound testing techniques. Such possibilities are inspection of materials in the early stages of their formation, or materials that are porous, or are texturally and compositionally complex. The importance of NDT has shifted into non-destructive characterization (NDC) of materials, which is necessary towards quantifying the service performance and durability of the products or structure. This study showcases the Non-Contact Ultrasound (NCU) analytical capabilities for composites varying in porosity and differing in number of plies, by using 0.5 MHz and 1.0 MHz NCU transducers. The results show that the ultrasound transmittance increases linearly with increasing porosity, whereas, the velocity decreases. The percent porosity derived from the NCU method matches that determined by conventional methods, thereby indicating excellent feasibility of the quantitative NCU analysis of materials. Limitations and phenomenon of signal propagation in the materials are discussed and further calibration studies are recommended.","language":"en","author":[{"propositions":[],"lastnames":["Bhardwaj"],"firstnames":["M"],"suffixes":[]},{"propositions":[],"lastnames":["Eischeid"],"firstnames":["T"],"suffixes":[]},{"propositions":[],"lastnames":["Vun"],"firstnames":["R"],"suffixes":[]}],"pages":"11","bibtex":"@article{bhardwaj_quantitative_nodate,\n\ttitle = {{QUANTITATIVE} {NON}-{CONTACT} {ULTRASOUND} {TESTING} {AND} {ANALYSIS} {OF} {MATERIALS} {FOR} {PROCESS} {AND} {QUALITY} {CONTROL}},\n\tabstract = {Ultrasound materials testing modality has advanced dramatically with the development of extremely high air/gas transduction transducers. The advantage of not needing physical contact of the transducer to the test media has opened numerous nondestructive testing (NDT) possibilities that are not feasible by conventional ultrasound testing techniques. Such possibilities are inspection of materials in the early stages of their formation, or materials that are porous, or are texturally and compositionally complex. The importance of NDT has shifted into non-destructive characterization (NDC) of materials, which is necessary towards quantifying the service performance and durability of the products or structure. This study showcases the Non-Contact Ultrasound (NCU) analytical capabilities for composites varying in porosity and differing in number of plies, by using 0.5 MHz and 1.0 MHz NCU transducers. The results show that the ultrasound transmittance increases linearly with increasing porosity, whereas, the velocity decreases. The percent porosity derived from the NCU method matches that determined by conventional methods, thereby indicating excellent feasibility of the quantitative NCU analysis of materials. Limitations and phenomenon of signal propagation in the materials are discussed and further calibration studies are recommended.},\n\tlanguage = {en},\n\tauthor = {Bhardwaj, M and Eischeid, T and Vun, R},\n\tpages = {11},\n}\n\n","author_short":["Bhardwaj, M","Eischeid, T","Vun, R"],"key":"bhardwaj_quantitative_nodate","id":"bhardwaj_quantitative_nodate","bibbaseid":"bhardwaj-eischeid-vun-quantitativenoncontactultrasoundtestingandanalysisofmaterialsforprocessandqualitycontrol","role":"author","urls":{},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/kongzh95","dataSources":["tAdPv9cJdcbuFicdv"],"keywords":[],"search_terms":["quantitative","non","contact","ultrasound","testing","analysis","materials","process","quality","control","bhardwaj","eischeid","vun"],"title":"QUANTITATIVE NON-CONTACT ULTRASOUND TESTING AND ANALYSIS OF MATERIALS FOR PROCESS AND QUALITY CONTROL","year":null}