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Full-Text Articles in Physical Sciences and Mathematics
Influence Of Lithophysal Porosity On Stress-Strain Properties Of Topopah Spring Tuff - Numerical Analysis, Nick Hudyma, Moses Karakouzian, Amy J. Smiecinski
Influence Of Lithophysal Porosity On Stress-Strain Properties Of Topopah Spring Tuff - Numerical Analysis, Nick Hudyma, Moses Karakouzian, Amy J. Smiecinski
Publications (YM)
The purpose of the numerical analysis effort of Task 27 of cooperative agreement DE-FC08-98NV12081 was to investigate the effect of lithophysal porosity on the elastic stress-strain properties of the tuff rock mass. Rock mass properties without lithophysal cavities are designated matrix properties. Rock mass properties with lithophysal cavities are designated effective properties. The analysis will be performed for a 6" by 6" square cross-section with a uniform distribution of lithophysal cavities for a variety of porosities. The analyses will be performed using FLAG 2D version 3.5, a Department of Energy qualified software. The analyses will compare the matrix properties to …
Seismicity In The Vicinity Of Yucca Mountain, Nevada, For The Period October 1, 1999 To September 30, 2000, David H. Von Seggern, Ken Smith, James N. Brune, Richard Quittmeyer, Amy J. Smiecinski
Seismicity In The Vicinity Of Yucca Mountain, Nevada, For The Period October 1, 1999 To September 30, 2000, David H. Von Seggern, Ken Smith, James N. Brune, Richard Quittmeyer, Amy J. Smiecinski
Publications (YM)
Starting on October 1, 1995, the monitoring of seismicity within the southern Great Basin near Yucca Mountain was performed with a new digital network. This network features three-component recording with 24-bit A/D conversion in the field. Continuous data are collected at 20 sps, and event triggered windows are collected at 100 sps. A seismic bulletin of events is made by automatically associating triggers among stations, classifying the local earthquake events, and locating the earthquakes and computing their magnitudes with conventional methods. This report covers the operational and seismic results of the fifth full year (FYOO) of the improved, digitally based, …
Ascent And Decompression Of Viscous Vesicular Magma In A Volcanic Conduit, Helene Massol, Claude Jaupart, Darrell Pepper
Ascent And Decompression Of Viscous Vesicular Magma In A Volcanic Conduit, Helene Massol, Claude Jaupart, Darrell Pepper
Mechanical Engineering Faculty Research
During eruption, lava domes and flows may become unstable and generate dangerous explosions. Fossil lava-filled eruption conduits and ancient lava flows are often characterized by complex internal variations of gas content. These observations indicate a need for accurate predictions of the distribution of gas content and bubble pressure in an eruption conduit. Bubbly magma behaves as a compressible viscous liquid involving three different pressures: those of the gas and magma phases, and that of the exterior. To solve for these three different pressures, one must account for expansion in all directions and hence for both horizontal and vertical velocity components. …
Seismicity In The Vicinity Of Yucca Mountain, Nevada, For The Period October 1, 1997 To September 20, 1999, David H. Von Seggern, Ken Smith, Glenn Biasi
Seismicity In The Vicinity Of Yucca Mountain, Nevada, For The Period October 1, 1997 To September 20, 1999, David H. Von Seggern, Ken Smith, Glenn Biasi
Publications (YM)
Starting on October 1, 1995 the monitoring of seismicity within the southern Great Basin near Yucca Mountain was performed with a new digital network. This network features three-component recording with 24-bit A/D conversion in the field. Continuous data is collected at 20 sps, and event triggered windows are collected at 100 samples per second. A seismic bulletin of events is made by associating triggers occurring within a prescribed time window. classifying the local earthquake events, and locating the earthquakes and computing their magnitudes with conventional methods. This report covers the operational and seismic results of the third and fourth full …