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- Hakami, H., et al.
(författare)
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Gauged sleeve for controlled testing of rock
- 1987
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Ingår i: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. - : Elsevier BV. - 0148-9062 .- 1879-2073. ; 24:6, s. 375-378
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Tidskriftsartikel (refereegranskat)abstract
- Electrical resistance strain gages, each 5 cm in length, were embedded at a depth of 1 mm, inside a Cil Monothane sleeve of thickness 2 mm. Cil Monothane A80 is a single component and non-toxic, heat-cure-pour polyurethane elastomer. It has sound elasto-plastic properties when cured. It was supplied by Compounding Ingredients Ltd, England. The strain gages cover about 95% of the circumference of the sleeve. The position of the strain gages corresponds to the mid-height of the rock sample
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- Alm, Ove, et al.
(författare)
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The influence of microcrack density on the elastic and fracture mechanical properties of Stripa granite
- 1985
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Ingår i: Physics of the Earth and Planetary Interiors. - 0031-9201 .- 1872-7395. ; 40:3, s. 161-179
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Tidskriftsartikel (refereegranskat)abstract
- Presents results from a great number of mechanical tests on Stripa granite containing various amounts of microcracks. Variations in the microcrack density were obtained by shock-heating the rock at different temperatures in the range 100-600°C for 3 h. The results presented are obtained from sound velocity measurements, uniaxial compression tests, Brazilian tests and three-point bending tests. The density of microcracks in the heated rock is studied by means of optical microscopy, SEM and differential strain analysis
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