Abstract
Loading machine stiffness is considered in an attempt to simulate strain accumulation processes prior to failure in earthquakes. We impose the similarity condition that the inelastic deformation in a test specimen relative to the loading machine corresponds with that in a spherical seismic region relative to the surrounding earth. From this constraint the appropriate ratio between the stiffnesses of machine and specimen is determined to be 1.5 ∼ 2.3. Preliminary experiments were carried out for sandstone samples. A qualitative difference between acoustic emission sequences was observed depending on whether the conditions were similar or dissimilar to the earth based on the scaling assumption. In the former case, a subsidence in acoustic emission activity prior to the main fractures was clearly and systematically observed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 321-323 |
| Number of pages | 3 |
| Journal | Geophysical Research Letters |
| Volume | 8 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jan 1 1981 |
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All Science Journal Classification (ASJC) codes
- Geophysics
- Earth and Planetary Sciences(all)
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Machine stiffness appropriate for experimental simulation of earthquake processes. / Kikuchi, Masayuki; McNally, Karen; Tittmann, Bernhard R.
In: Geophysical Research Letters, Vol. 8, No. 4, 01.01.1981, p. 321-323.Research output: Contribution to journal › Article
TY - JOUR
T1 - Machine stiffness appropriate for experimental simulation of earthquake processes
AU - Kikuchi, Masayuki
AU - McNally, Karen
AU - Tittmann, Bernhard R.
PY - 1981/1/1
Y1 - 1981/1/1
N2 - Loading machine stiffness is considered in an attempt to simulate strain accumulation processes prior to failure in earthquakes. We impose the similarity condition that the inelastic deformation in a test specimen relative to the loading machine corresponds with that in a spherical seismic region relative to the surrounding earth. From this constraint the appropriate ratio between the stiffnesses of machine and specimen is determined to be 1.5 ∼ 2.3. Preliminary experiments were carried out for sandstone samples. A qualitative difference between acoustic emission sequences was observed depending on whether the conditions were similar or dissimilar to the earth based on the scaling assumption. In the former case, a subsidence in acoustic emission activity prior to the main fractures was clearly and systematically observed.
AB - Loading machine stiffness is considered in an attempt to simulate strain accumulation processes prior to failure in earthquakes. We impose the similarity condition that the inelastic deformation in a test specimen relative to the loading machine corresponds with that in a spherical seismic region relative to the surrounding earth. From this constraint the appropriate ratio between the stiffnesses of machine and specimen is determined to be 1.5 ∼ 2.3. Preliminary experiments were carried out for sandstone samples. A qualitative difference between acoustic emission sequences was observed depending on whether the conditions were similar or dissimilar to the earth based on the scaling assumption. In the former case, a subsidence in acoustic emission activity prior to the main fractures was clearly and systematically observed.
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U2 - 10.1029/GL008i004p00321
DO - 10.1029/GL008i004p00321
M3 - Article
VL - 8
SP - 321
EP - 323
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 4
ER -