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A platform for research: civil engineering, architecture and urbanism
Independent Roles of the Stress State Variables on Volume–Mass Constitutive Relations
Summary This paper investigates the individual character of the two independent stress tensors and the effect of each on the volume-mass constitutive relations for unsaturated soils. Cases involving soils with varying plasticity and stress history are presented. A model for void ratio (or specific volume) behaviour has been developed within the context of independent stress state variables. Theoretical and experimental results show that changes in the net total stress tensor produce distinctly independent volume change behaviour from changes in matric suction even when the net total stress changes are isotropic. Stress history is reflected differently on the volume change constitutive relations depending upon which stress tensor is changed. Likewise, the water content constitutive relationship is affected in a distinctively different manner depending upon which stress tensor is changed.
Independent Roles of the Stress State Variables on Volume–Mass Constitutive Relations
Summary This paper investigates the individual character of the two independent stress tensors and the effect of each on the volume-mass constitutive relations for unsaturated soils. Cases involving soils with varying plasticity and stress history are presented. A model for void ratio (or specific volume) behaviour has been developed within the context of independent stress state variables. Theoretical and experimental results show that changes in the net total stress tensor produce distinctly independent volume change behaviour from changes in matric suction even when the net total stress changes are isotropic. Stress history is reflected differently on the volume change constitutive relations depending upon which stress tensor is changed. Likewise, the water content constitutive relationship is affected in a distinctively different manner depending upon which stress tensor is changed.
Independent Roles of the Stress State Variables on Volume–Mass Constitutive Relations
Fredlund, Delwyn G. (author) / Pham, Hung Q. (author)
2007-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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