TY - JOUR T1 - Scale Effect on the Tensile Strength in the Brazilian Test TT - بررسی تأثیر مقیاس بر مقاومت کششی در آزمایش برزیلی JF - jeg JO - jeg VL - 11 IS - 4 UR - http://jeg.khu.ac.ir/article-1-2575-en.html Y1 - 2018 SP - 319 EP - 342 KW - model can provide a better estimation of tensile strength at different diameters. N2 - Introduction Determination of the mechanical properties of rock materials has been remained as a challenge for engineering geologists. In-situ tests are rarely used to determine the mechanical properties of rocks due to difficulties in sample preparation, performing and interpretation of the results, high costs as well as the required long time for doing the experiments. The common approach to determine the mechanical properties of rock materials is through conducting laboratory experiments and estimation the in-situ properties based on these laboratory results. This approximation, which is called scale effect, has been remained as a challenge for engineering geologists and practical rock engineers for decades. ...../files/site1/files/0Extended_Abstract1.pdf M3 10.18869/acadpub.jeg.11.4.319 ER -