Mesure de l'influence de la pression sur la propagation de fissure dans les roches Measuring the Influence of Pressure on Crack Propagation in Rocks
Biret F., Valentin G.
Oil & Gas Science and Technology · 2006
doi:10.2516/ogst:1987046 (opens in a new tab)
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Abstract
L'influence de la pression sur la propagation de fissure par ouverture (mode I) sur une roche compacte à grain fin (calcaire de Comblanchien) et par cisaillement plan (mode II) sur une roche stratifiée (schiste ardoisier) a été mise en évidence et mesurée. Dans les deux cas, une relation linéaire entre le facteur d'intensité de contrainte à la rupture et la pression a été observée. Cette relation est démontrée en mode Il en faisant intervenir les effets du frottement solide. <br> The influence of pressure on fissure propagation by opening (mode I) in a compact fine-grained rock (Comblanchian limestone) and by plane shearing (mode II) in a stratified rock (slaty shale) has been revealed and measured. In both cases, a linear relation was found between the critical-stress intensity factor and pressure. This relation is illustrated for mode II by applying solid friction effects.
Abstract licence: CC BY
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