Acta Stereologica

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Jakub Bodziony, Mariusz Młynarczuk & Teresa Ratajczak

Identification of trans- and intercrystalline image of the fracture surfaces of rock specimens

(Volume 12 (1993) — Number 2 - Proceedings of the sixth European congress for stereology - Part one - Dec. 1993)
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Abstract

One of the important aspects of the mechanism of brittle cracking is the geometry of fracture, i.e. its morphology and trans- or intercrystalline image. In the paper consideration has been given to fractures of dolomite and quartzite specimens obtained as a result of direct tensile test and brazilian test. Reconstruction of specimens was obtained by gluing. The linear stereological analysis was performed. Two groups of crystals have been identified: (1) crystals not adjacent to the fracture, (2) crystals adjacent to the fracture. It has been found in particular, that the mean intercept length of crystals in group 2 is significantly greater than the mean intercept length of crystals in group 1. Trans- or intercrystalline cracking depends not only on the type of the rock, but also on the mode of obtaining the fracture.

Keywords : cracking of rocks, intercrystalline fracturing, linear stereological analysis, transcrystalline fracturing

Pour citer cet article

Jakub Bodziony, Mariusz Młynarczuk & Teresa Ratajczak, «Identification of trans- and intercrystalline image of the fracture surfaces of rock specimens», Acta Stereologica [En ligne], Volume 12 (1993), Number 2 - Proceedings of the sixth European congress for stereology - Part one - Dec. 1993, 229-234 URL : https://popups.uliege.be/0351-580x/index.php?id=1595.

A propos de : Jakub Bodziony

Strata Mechanics Research Institute, Polish Academy of Sciences, Ul. Reymonta 27, 30-059 Kraków, Poland

A propos de : Mariusz Młynarczuk

Strata Mechanics Research Institute, Polish Academy of Sciences, Ul. Reymonta 27, 30-059 Kraków, Poland

A propos de : Teresa Ratajczak

Strata Mechanics Research Institute, Polish Academy of Sciences, Ul. Reymonta 27, 30-059 Kraków, Poland