ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Data analysis / ~ processing
  • Friction
  • Am. Geophys. Union  (2)
  • Elsevier  (2)
  • Soc. of Exploration Geophys.  (2)
  • Springer  (2)
  • Annual Reviews
  • 1980-1984  (8)
  • 1
    Electronic Resource
    Electronic Resource
    Instability on a weakening fault (1984)
    Springer
    Pure and applied geophysics 122 (1984), S. 478-491 
    Details
    ISSN: 1420-9136
    Keywords: Instability ; Fault ; Stick-slip ; Stress ; Friction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Weakening of a prestressed sawcut in Westerly granite under laboratory condition is accomplished by injecting pressurized fluid into the sawcut. After injection a sequence of stick-slips is observed while the deviatoric stress decreases successively with each stick-slip. On the basis of the experimental observation we develop a model of fault instability due to inhomogeneous and progressive weakening of the fault. According to this model, the fault surface is divided into the ‘slipped’ and the ‘locked’ regions, depending on whether or not the local state of stress satisfies the friction criterion. The average shear stress in the slipped region decreases with time and, in order to maintain a quasi-static equilibrium, shear stress in the remaining ‘locked’ region on the fault surface increases. This situation may last until a critical state of stress on the fault is met, at which a sudden instability (stick0slip) may occur. We suggest that this mechanism of stress transfer may be a viable mechanism of induced seismicity and aftershocks, in addition to the well-known mechanism of a local increase of pore pressure. By comparing the experimental data with model predictions we show that the critical condition for slip instability is when the average shear stress over the ‘locked’ region becomes equal to the value given by the friction criterion. Thus the friction criterion established for slip on fractures on which the state of stress is macroscopically uniform may also be applicable to fractures on which the stress state is macroscopically heterogeneous.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00874613
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Surface tension of animal cartilage as it relates to friction in joints (1983)
    Springer
    Annals of biomedical engineering 11 (1983), S. 435-449 
    Details
    ISSN: 1573-9686
    Keywords: Cartilage ; Friction ; Interfacial tension ; Lubrication ; Surface tension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract Measurements of the surface tension of articular cartilage and friction experiments were carried out to provide further evidence in support of a new theory regarding the mechanism of friction in joints. To determine the surface tension of cartilage, contact angle measurements were used in conjunction with the equation of state for interfacial tensions. The advancing contact angle between saline drops and articular cartilage was found to be 100°±5°, indicating a highly hydrophobic surface. The corresponding surface tension value was calculated to be 22.5 ergs/cm2. Friction of cartilage against hydrophobic surfaces is shown to be lower than the friction of cartilage against hydrophilic surfaces. All these results further support the theory that lubrication by nonwetting drops occurs in joints and may be responsible for the exceptional friction characteristics of the joints.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00000005
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    facet.materialart.
    Unknown
    Digital Tape Standards (1982)
    Soc. of Exploration Geophys.
    In:  Tulsa, Okl., Soc. of Exploration Geophys., vol. IUGG Volume 18, no. 85, pp. 175, (3-7723-6434-9)
    Details
    Publication Date: 1982
    Keywords: Data analysis / ~ processing ; Handbook of geophysics ; Seismics (controlled source seismology)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 4
    facet.materialart.
    Unknown
    Stiff testing machines, stick slip sliding, and the stability of rock deformation (1981)
    Am. Geophys. Union
    In:  Professional Paper, Mechanical Behavior of Crustal Rocks - The Handin Volume, Roma, Am. Geophys. Union, vol. 24, no. 16, pp. 93-102, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1981
    Keywords: Laboratory measurements ; Rock mechanics ; Physical properties of rocks ; Friction ; Fracture ; Review article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 5
    facet.materialart.
    Unknown
    Frequency-wavenumber analysis of Gräfenberg wide-band data (1983)
    Elsevier
    In:  Bull., Polar Proj. OP-O3A4, Signal Processing II: Theories and Applications, Bath, Elsevier, vol. 186, no. XVI:, pp. 689-692, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1983
    Keywords: Seismology ; Seismic arrays ; Spectrum ; Broad-band ; Data analysis / ~ processing ; f-k-Analysis ; Schuessler ; Schussler
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 6
    facet.materialart.
    Unknown
    Geophysical signal analysis (1983)
    Elsevier
    In:  Bull., Polar Proj. OP-O3A4, Signal Processing II: Theories and Applications, Leiden, Elsevier, vol. 11, no. XVI:, pp. 673-680, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1983
    Keywords: Seismology ; Seismics (controlled source seismology) ; Filter- ; Data analysis / ~ processing ; Schuessler ; Schussler
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 7
    facet.materialart.
    Unknown
    Digital Processing of Geophysical Data (1982)
    Soc. of Exploration Geophys.
    In:  Tulsa, Okl., Soc. of Exploration Geophys., vol. 50, no. 22, pp. 65-83, (ISBN 0-87590-422-X)
    Details
    Publication Date: 1982
    Keywords: Seismics (controlled source seismology) ; Data analysis / ~ processing
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
  • 8
    facet.materialart.
    Unknown
    Thermomechanical properties of Galesville sandstone (1981)
    Am. Geophys. Union
    In:  Professional Paper, Mechanical Behavior of Crustal Rocks - The Handin Volume, Washington, D. C., Am. Geophys. Union, vol. 24, no. 16, pp. 153-159, (ISBN 0080419208)
    Details
    Publication Date: 1981
    Keywords: Laboratory measurements ; Rock mechanics ; Physical properties of rocks ; internal ; sliding ; Friction
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    BIBLIOGRAPHY SEISMOLOGY
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...