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Effects of viscous properties on the shear yielding characteristics of sand
Nawir H.a,b, Tatsuoka F.b, Kuwano R.b,c
a Department of Civil Engineering, Bandung Institute of Technology, Indonesia
b University of Tokyo, Japan
c Publics Works Research Institute, Independent Administrative Institution, Japan
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Effects of viscous properties on the yielding characteristics of sand under general stress conditions were evaluated by performing unconventional drained triaxial compression tests on saturated dense Toyoura sand. Shear yield stresses evaluated by applying unload/reload cycles of deviator stress at a fixed confining pressure were noticeably affected by a strain rate change between primary loading and reloading as well as creep deformation at the maximum deviator stress before unloading due to the viscous properties of sand. It is shown that the double yielding concept, describing the yielding of soil in terms of shear and volumetric yielding mechanisms, is relevant to sand. The shear yield loci on the q-p′ stress plane were obtained by decreasing and then increasing the deviator stress respectively at different confining pressures. The shape of shear yield loci was also affected by the viscous properties. With an increase in the effective mean principal stress, p′, along a given inviscid shear yield locus, the deviator stress, q, increases while the stress ratio, qlp′, slightly decreases. It is demonstrated that it is necessary to incorporate the effects of viscous properties when developing a realistic constitutive model for sand. An interaction between shear and compression yielding mechanisms is discussed based on experimental results.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Constiutive modeling,Triaxial compression,Viscous properties,Yield locus[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Constitutive modelling,Deformation,Sand,Triaxial compression,Viscous properties,Yield locus,Yield stress (IGC: D6/D7)[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.3208/sandf.43.6_33[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]