TY - JOUR
T1 - The damping of saturated poroelastic soils during steady-state vibrations
AU - Bardet, J. P.
N1 - Funding Information:
The financial support of the National Science Foundation is acknowledged (grant CEES-8800735). The author also acknowledges the contribution of H. Sayed to the numerical analysis, and is thankful to M. Harris for proofreading the manuscript.
PY - 1995
Y1 - 1995
N2 - Herein, we analyze the damping that arises from the soil-water interaction within nearly-saturated soils during steady-state vibrations. Based on the two-phase theory of Biot, we analytically derive the spectral response of a column made of nearly saturated poroelastic soils as a function of soil stiffness, degree of saturation, porosity, specific gravity, and permeability. A parametric study determines the influence of these parameters on the fundamental period, maximum amplitude, energy dissipation, damping factor, and maximum pore pressure. In departure from common beliefs in soil dynamics, we conclude that the soil-water damping within fully-saturated sands is not negligible compared to structural hysteretic damping.
AB - Herein, we analyze the damping that arises from the soil-water interaction within nearly-saturated soils during steady-state vibrations. Based on the two-phase theory of Biot, we analytically derive the spectral response of a column made of nearly saturated poroelastic soils as a function of soil stiffness, degree of saturation, porosity, specific gravity, and permeability. A parametric study determines the influence of these parameters on the fundamental period, maximum amplitude, energy dissipation, damping factor, and maximum pore pressure. In departure from common beliefs in soil dynamics, we conclude that the soil-water damping within fully-saturated sands is not negligible compared to structural hysteretic damping.
UR - http://www.scopus.com/inward/record.url?scp=0043127378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0043127378&partnerID=8YFLogxK
U2 - 10.1016/0096-3003(94)00052-6
DO - 10.1016/0096-3003(94)00052-6
M3 - Article
AN - SCOPUS:0043127378
VL - 67
SP - 3
EP - 31
JO - Applied Mathematics and Computation
JF - Applied Mathematics and Computation
SN - 0096-3003
IS - 1-3
ER -