Testing of small-sized disk samples obtained by spark-plasma sintering and electric pulse exposure

5th International Scientific Workshop on "Advanced Technologies of Materials Field-Assisted Consolidation"

Goltsev, V.I.^1 ; Osintsev, A.V.^1 ; Plotnikov, A.S.^1

National Research Nuclear University, MEPhI, Kashirskoe shosse, 31, Moscow

115409, Russia^1

关键词: Brazilian test;    Brittle rocks;    Design Analysis;    Disk compression;    Electric pulse;    Material strength;    Stress parameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/218/1/012006/pdf
DOI  :  10.1088/1757-899X/218/1/012006

来源: IOP

【 摘 要 】

The article presents results of design analysis of stress and strain in the disk sample loaded by the Brazilian test (disk compression in the center plane). The research established correlations of the diameter and thickness of the sample acceptable to obtain reliable values of material strength in response to stress. Presented a strong relation of average tensile stresses in the central area of the disc to the stress parameter used to determine the strength of brittle rock materials.