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Related Experiment Videos

Universal scaling in transient creep.

Dag Kristian Dysthe1, Yuri Podladchikov, Francois Renard

  • 1Physics of Geological Processes, Postbox 1048 Blindern, N-0316 Oslo, Norway. d.k.dysthe@fys.uio.no

Physical Review Letters
|December 18, 2002
PubMed
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Pressure solution creep does not reach a steady state. Instead, strain and microstructure length scale grow with the cube root of time, similar to Andrade creep in metallurgy.

Area of Science:

  • Geosciences
  • Materials Science
  • Physics

Background:

  • Previous models assumed pressure solution creep leads to a steady-state interface microstructure.
  • Understanding creep mechanisms is crucial for predicting geological and material deformation over time.

Purpose of the Study:

  • To investigate the time-dependent evolution of interface microstructures during pressure solution creep.
  • To challenge the existing paradigm of steady-state microstructural development.

Main Methods:

  • Experimental analysis of pressure solution creep.
  • Microstructural characterization over time.
  • Comparison with metallurgical creep phenomena.

Main Results:

Related Experiment Videos

  • Experimental evidence shows pressure solution creep does not achieve a steady-state interface microstructure.
  • Strain and the characteristic length scale of microstructures exhibit cubic-root-of-time growth.
  • This transient behavior mirrors Andrade creep observed in metallurgy.

    • Conclusions:

    • Pressure solution creep is fundamentally transient, not steady-state.
    • The observed scaling law provides a new framework for understanding creep deformation.
    • An analogy with spinodal dewetting offers a potential explanation for the universal scaling observed.