Stress corrosion and crack propagation in sioux quartzite

Journal Article · Fri Jun 10 04:00:00 EDT 1983 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JB088iB06p05037· OSTI ID:5693802

Peck, L

The extent to which chemical environment alters the fracture strength of rock is of increasing interest to geologists and engineers concerned with naturally occurring, brittle rock deformation and with the controlled fracture of rock. The effect of water, a chemically active environment for rock, is important because in situ rock deformation in the upper crust usually occurs in the presence of water. Two aspects of the brittle deformation of Sioux Quartzite have been studied: water-induced changes in the amount of energy consumed during fracture of the quartzite and the occurrence of microcracking during crack propagation. Although increased crack velocity in quartzite cracked in hot water is evidence of thermally enhanced water weakening, the fracture energy of quartzite cracked in hot air or hot water is 12 to 13% higher than room temperature values. The increase in fracture energy is attributed to changes in the net stress field responsible for microcracking and crack propagation in the quartzite. 47 references.

• OSTI ID: 5693802
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 88:B6; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580300* -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
CHEMICAL REACTIONS
CORROSION
CRACK PROPAGATION
DEFORMATION
FLUIDS
FRACTURE PROPERTIES
FRACTURING FLUIDS
HYDROGEN COMPOUNDS
MECHANICAL PROPERTIES
METAMORPHIC ROCKS
OXYGEN COMPOUNDS
PERMEABILITY
POROSITY
QUARTZITES
ROCKS
STIMULATION
STRESS CORROSION
WATER
WELL COMPLETION
WELL STIMULATION