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Quasi-static fault growth and shear fracture energy in granite

Nature

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, , , ,

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Abstract

The failure process in a brittle granite sample can be stabilized by controlling axial stress to maintain a constant rate of acoustic emission. As a result, the post-failure stress curve can be followed quasistatically, extending to hours the fault growth process which normally would occur violently in a fraction of a second. Using a procedure originally developed to locate earthquakes, acoustic emission arrival-time data are inverted to obtain three-dimensional locations of microseisms. These locations provide a detailed view of fracture nucleation and growth.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Quasi-static fault growth and shear fracture energy in granite
Series title:
Nature
Volume
350
Issue:
6313
Year Published:
1991
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Nature
First page:
39
Last page:
42
Number of Pages:
4