{"title":"A review of the Brazilian test for rock tensile strength determination. Part I: calculation formula","authors":"G.E. Andreev","doi":"10.1016/0167-9031(91)91006-4","DOIUrl":null,"url":null,"abstract":"<div><p>There is an opinion that the Brazilian test is not valid for materials where the ratio, <em>n = R</em><sub>c</sub>/<em>R</em><sub>t</sub>, between compressive strength, <em>R</em><sub>c</sub>, and tensile strength, <em>R</em><sub>t</sub>, is low. This article supports the view that the Brazilian test is valid for materials which exhibit brittle failure. The continual <em>δ</em> model and <em>β</em> model created on the basis of the effective tensile stress are proposed. According to the latter model: <em>R</em><sub>t</sub> = (2<em>P/πDL</em>)(<em>n</em> + 3/<em>n</em>), of which experimental proofs are given.</p></div>","PeriodicalId":100929,"journal":{"name":"Mining Science and Technology","volume":"13 3","pages":"Pages 445-456"},"PeriodicalIF":0.0000,"publicationDate":"1991-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-9031(91)91006-4","citationCount":"95","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mining Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0167903191910064","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 95
Abstract
There is an opinion that the Brazilian test is not valid for materials where the ratio, n = Rc/Rt, between compressive strength, Rc, and tensile strength, Rt, is low. This article supports the view that the Brazilian test is valid for materials which exhibit brittle failure. The continual δ model and β model created on the basis of the effective tensile stress are proposed. According to the latter model: Rt = (2P/πDL)(n + 3/n), of which experimental proofs are given.
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