Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on rectangular Westerly granite blocks (width=depth=4.0", height=2.0"). Liquid nitrogen was poured in a small, 1"-diameter copper cup attached to the top of the sample, and the resulting acoustic emissions (AEs) and temperature changes on the surface of the sample were monitored. Several confining stresses were applied bi-axially to the sides of the samples so that the onset of AE activity and the stress applied to the sample were correlated. The obtained AEs were used to determine the microcracking source locations and amplitude, and the associated moment tensors. Included in this submission are the animations of the AE locations and graphics displaying the measured temperature-AE activity changes for different stresses.
L o a d i n g
Organization
National Renewable Energy Laboratory (NREL) - view all
Update frequencyunknown
Last updatedover 2 years ago
OverviewWesterly Graniteacoustic emissionacoustic emission locationacoustic emission ratedataenergyfracturefracturinggeophysicsgeothermalgranitemicrofractureprocessed datastressstress measurementstress testingtemperaturethermal fracturing
Additional Information
KeyValue
Dcat Issued2021-07-08T06:00:00Z
Dcat Modified2021-11-08T20:04:30Z
Dcat Publisher NameLawrence Berkeley National Laboratory
Guidhttps://data.openei.org/submissions/4550
