... and alkali feldspar, quartz. In order to investigate micro scale fracture toughness, a mechanical testing machine was used. This machine is an original one and developed by ourselves. In the test, a micro-sized cantilever beam type specimen was used. Its dimension is 10 × 10 × 50 μm. On the other hand...

... boundaries. The final one is called microscopic fracture toughness (MFT) and is an important parameter. In this paper, a new mechanical testing machine is developed to make clear MFT of mineral grains within rock, based on the mechanical testing machine in the field of metallurgical engineering. Then, MFT...

...Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 The development of a servo-control testing machine for dynamic shear testing of rock discontinuities and soft rocks Ö. Aydan, N. Tokashiki & J...

... Reservoir Characterization plasticity elasticity deformation modulus structural geology testing machine marble Upstream Oil & Gas post failure stage loading-unloading cycle metals & mining dark marble variation specimen investigation Deformation Characteristic Poisson...

... The paper describes the results of laboratory experiments in which: granite samples were preliminary loaded with a testing machine, and then were instantly unloaded. Acoustic emission signals due to the rock fracture process were detected during both of the above stages...

... shear test consistent result comparative study testing machine marble peak dilation rate limestone diorite Upstream Oil & Gas resistance direct shear test normalised stress fresh joint Eurock '93, Ribeiro eSousa & Grossmann (eds) © 1993 Balkema, Rotterdam 9054103396 Shearing...