{"title":"Features of Energy Distributions of Acoustic Emission Signals during Rocks Deformation: Laboratory Experiment and Computer Simulation","authors":"E. E. Damaskinskaya, V. L. Hilarov","doi":"10.1134/S106935132570048X","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—The article overviews the results of computer and laboratory experiments on the deformation of samples of various rocks. To identify defect evolution patterns, a model based on the discrete element method was used. In a laboratory experiment, the evolution of a microcrack system in samples (Westerly granite, Berea sandstone, metasandstone) was studied using two independent nondestructive methods: acoustic emission and X-ray computed microtomography). It is shown that the energy distribution of acoustic emission signals accompanying failure is not always approximated by a power function. An exponential form of the energy distribution of AE signals indicates a stable state of the deformed material. A power-law type of distribution indicates that the process of defect accumulation has reached a critical stage, leading to catastrophic failure.</p>","PeriodicalId":602,"journal":{"name":"Izvestiya, Physics of the Solid Earth","volume":"61 4","pages":"676 - 681"},"PeriodicalIF":1.0000,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Izvestiya, Physics of the Solid Earth","FirstCategoryId":"89","ListUrlMain":"https://link.springer.com/article/10.1134/S106935132570048X","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract—The article overviews the results of computer and laboratory experiments on the deformation of samples of various rocks. To identify defect evolution patterns, a model based on the discrete element method was used. In a laboratory experiment, the evolution of a microcrack system in samples (Westerly granite, Berea sandstone, metasandstone) was studied using two independent nondestructive methods: acoustic emission and X-ray computed microtomography). It is shown that the energy distribution of acoustic emission signals accompanying failure is not always approximated by a power function. An exponential form of the energy distribution of AE signals indicates a stable state of the deformed material. A power-law type of distribution indicates that the process of defect accumulation has reached a critical stage, leading to catastrophic failure.
期刊介绍：
Izvestiya, Physics of the Solid Earth is an international peer reviewed journal that publishes results of original theoretical and experimental research in relevant areas of the physics of the Earth''s interior and applied geophysics. The journal welcomes manuscripts from all countries in the English or Russian language.
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