1887

Abstract

It is a classical result that the elastic moduli of rocks measured with a "static" mechanical press can be substantially smaller than the elastic moduli measured with ultrasonic devices. This result is often incorrectly attributed only to the dispersion effect due to the jump in the frequency band of observation, which is abusively summarized in the terms "static moduli" and "dynamic moduli". Without neglecting the frequency dependence of the mechanical properties, here we show the importance of another fundamental parameter, namely the strain level, to explain this mismatch, which is not commonly appreciated. We propose a theoretical model for describing all these phenomena in arbitrarily anisotropic media. The model is based on the synthesis between viscoelasticy for frequency dependence, and nonlinearity and hysteresis for strain level dependence.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.20147831
2008-06-09
2024-03-29
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20147831
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error