Fracture toughness measurements on igneous rocks using a high-pressure, high-temperature rock fracture mechanics cell
نویسندگان
چکیده
منابع مشابه
Fracture toughness measurements on igneous rocks using a high-pressure, high-temperature rock fracture mechanics cell
A sound knowledge of mechanical properties of rocks at high temperatures and pressures is essential for modelling volcanological problems such as fracture of lava flows and dike emplacement. In particular, fracture toughness is a scale invariant material property of a rock that describes its resistance to tensile failure. A new fracture mechanics apparatus has been constructed enabling fracture...
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The fracture mechanics examines the development and expansion of cracks in solids and how they affect the deformation of materials. The stress intensity factors at the tip of the crack and the critical stress intensity factors or fracture toughness of materials are considered in the relevant criteria. There are three main modes of applying forces to a crack including the tensile mode, shear mod...
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Assessment of the correlation between rock brittleness and rock fracture toughness has been the subject of extensive research works in the recent years. Unfortunately, the brittleness measurement methods have not yet been standardized, and rock fracture toughness cannot be estimated satisfactorily by the proposed indices. In the present study, statistical analyses are performed on some data col...
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ژورنال
عنوان ژورنال: Journal of Volcanology and Geothermal Research
سال: 2004
ISSN: 0377-0273
DOI: 10.1016/s0377-0273(03)00343-3