TY - JOUR
T1 - DENSIFICATION AND HYSTERESIS OF SAND UNDER CYCLIC SHEAR
AU - Cuellar, Vincente
AU - Bazant, Zdenek P.
AU - Krizek, Raymond J.
AU - Silver, Marshall L.
PY - 1977/1/1
Y1 - 1977/1/1
N2 - The accumulation of inelastic strain due to the irreversible rearrangement of grain configurations associated with deviatoric strains is characterized by a nondecreasing material variable, termed the rearrangement measure; this variable, in turn, forms the basis of an intrinsic time scale and other related variables termed the densification measure and distortion measure. The shear modulus is identified to be a function of the mean normal stress and the second invariant of the strain deviator. In contrast with empirical methods, the material behavior is described herein by a constitutive law that satisfies all invariance requirements of continuum mechanics; thus, this law should, in principle, be generally applicable, including the cases of nonsinusoidal loadings with varying amplitudes, general multiaxial stress states, and nonproportional stress component histories. In addition, the law automatically exhibits hysteretic damping and is fully continuous, i. e. , it contains no inequalities, such as those used in plasticity to distinguish unloading.
AB - The accumulation of inelastic strain due to the irreversible rearrangement of grain configurations associated with deviatoric strains is characterized by a nondecreasing material variable, termed the rearrangement measure; this variable, in turn, forms the basis of an intrinsic time scale and other related variables termed the densification measure and distortion measure. The shear modulus is identified to be a function of the mean normal stress and the second invariant of the strain deviator. In contrast with empirical methods, the material behavior is described herein by a constitutive law that satisfies all invariance requirements of continuum mechanics; thus, this law should, in principle, be generally applicable, including the cases of nonsinusoidal loadings with varying amplitudes, general multiaxial stress states, and nonproportional stress component histories. In addition, the law automatically exhibits hysteretic damping and is fully continuous, i. e. , it contains no inequalities, such as those used in plasticity to distinguish unloading.
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M3 - Article
AN - SCOPUS:0017496091
VL - 103
SP - 399
EP - 416
JO - ASCE J Soil Mech Found Div
JF - ASCE J Soil Mech Found Div
SN - 1090-0241
IS - 5
ER -