Yu. G. Sokolovskaya, N. B. Podymova, A. A. Karabutov
{"title":"Laser–Ultrasonic Study of Local Porosity Distribution in Carbon Fiber Reinforced Plastic Stringer Panels","authors":"Yu. G. Sokolovskaya, N. B. Podymova, A. A. Karabutov","doi":"10.1134/s2075113324020394","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A method for quantitative evaluation of the porosity in carbon fiber reinforced plastic (CFRP) structures based on laser excitation of probe ultrasonic pulses is presented. The technique of estimating the porosity level in a material has been proposed using the experimentally measured phase velocity of longitudinal acoustic waves propagating in this material. By the example of control samples and actual CFRP structures, the possibility of obtaining maps of the local porosity distribution in the studied region of the structure has been demonstrated. It has been shown that in the structures studied, there are regions with a significant variation in the local porosity level. The proposed method can be used for quality monitoring of manufactured composite structures, as well as for studying the structural changes during operation of the structure.</p>","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials: Applied Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s2075113324020394","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A method for quantitative evaluation of the porosity in carbon fiber reinforced plastic (CFRP) structures based on laser excitation of probe ultrasonic pulses is presented. The technique of estimating the porosity level in a material has been proposed using the experimentally measured phase velocity of longitudinal acoustic waves propagating in this material. By the example of control samples and actual CFRP structures, the possibility of obtaining maps of the local porosity distribution in the studied region of the structure has been demonstrated. It has been shown that in the structures studied, there are regions with a significant variation in the local porosity level. The proposed method can be used for quality monitoring of manufactured composite structures, as well as for studying the structural changes during operation of the structure.
期刊介绍：
Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.
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