Sadašnje spoznaje o ispitivanju vlačne čvrstoće stijena uporabom brazilskoga testa

Scientific paper - Review paper

• Title (english): Current cognition of rock tensile strength testing by Brazilian test
• Author: Zlatko Briševac
• Author: Trpimir Kujundžić
• Author: Sandi Čajić
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mining and Geotechnical Engineering)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering

Abstract (croatian)

Vlačna čvrstoća u mehanici stijena svojstvo je koje se znatno češće određuje indirektno (neizravno) nego direktno (izravno). U ovome radu prikazan je povijesni pregled razvoja indirektne metode ispitivanja zvane brazilski test od njezina nastanka 1943. god. do današnjih dana. Upućuje se na neke aspekte koji su bitni za tumačenje rezultata brazilskoga testa zbog različitoga stanja naprezanja prilikom toga ispitivanja i direktnoga postupka za određivanje vlačne čvrstoće. Posebno je obrađena procjena direktne vlačne čvrstoće i utjecaj saturacije uzoraka na rezultate ispitivanja indirektne vlačne čvrstoće.

Abstract (english)

Tensile strength in rock mechanics is a characteristic more frequently determined in the indirect rather than direct way. This paper presents a historical review of the development of the indirect method called the Brazilian test, comprising the period from 1943 to the present day. It stresses some aspects which are essential for interpreting the results of the Brazilian test due to the different degrees of stress during the testing and the direct method of determining tensile strength. The estimate of the direct tensile strength and the influence of sample saturation on the results of indirect tensile strength testing have been specifically elaborated.

• Keywords (croatian): vlačna čvrstoća; indirektna vlačna čvrstoća; brazilski test; mehanika stijena
• Keywords (english): tensile strength; indirect tensile strength; Brazilian test; rock mechanics
• Language: croatian
• Language: english
• Publication type: Scientific paper - Review paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Rudarsko-geološko-naftni zbornik
• Numbering: vol. 30, no. 2, pp. 101-128
• e-ISSN: 1849-0409
• DOI: https://doi.org/10.17794/rgn.2015.2.2
• URN:NBN: urn:nbn:hr:169:547027
• Publication: 2015
• Document URL: https://hrcak.srce.hr/148337
• Type of resource: Text
• Access conditions: Open access
• Created on: 2021-04-14 10:28:11