Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of coefficient of uniformity on cyclic liquefaction resistance of granular materials
https://orcid.org/0000-0002-6983-8173
https://orcid.org/0000-0002-6409-3942
https://orcid.org/0000-0003-2067-8161
Abstract Using three-dimensional discrete element method, we analyze the particle size distribution (PSD) effect on the cyclic liquefaction resistance of spherical particle assemblies. For the same mean particle size and log-linear type PSD, the coefficient of uniformity () is chosen as a descriptor of the PSD. Samples with five levels of are isotropically compressed to the same pressure and two relative densities () informed by the maximum and minimum achieved void ratios determined for each . The ten samples are subjected to constant volume cyclic simple shearing at different cyclic stress ratios until reaching initial liquefaction, in 56 simulations. The simulations suggest that at each the evolution pattern of excess pore pressure ratio against the number of loading cycles normalized by the number of cycles to liquefaction is minimally affected by the . For the samples with lower , increasing the in the range 1–3 first increases and then decreases the liquefaction resistance; this trend reverses at the higher . Two critical state parameters based on the void ratio and the coordination number at the pre-shearing state of the samples correlate well with the cyclic liquefaction resistance for the ranges of and considered in this study.
Effect of coefficient of uniformity on cyclic liquefaction resistance of granular materials
https://orcid.org/0000-0002-6983-8173
https://orcid.org/0000-0002-6409-3942
https://orcid.org/0000-0003-2067-8161
Abstract Using three-dimensional discrete element method, we analyze the particle size distribution (PSD) effect on the cyclic liquefaction resistance of spherical particle assemblies. For the same mean particle size and log-linear type PSD, the coefficient of uniformity () is chosen as a descriptor of the PSD. Samples with five levels of are isotropically compressed to the same pressure and two relative densities () informed by the maximum and minimum achieved void ratios determined for each . The ten samples are subjected to constant volume cyclic simple shearing at different cyclic stress ratios until reaching initial liquefaction, in 56 simulations. The simulations suggest that at each the evolution pattern of excess pore pressure ratio against the number of loading cycles normalized by the number of cycles to liquefaction is minimally affected by the . For the samples with lower , increasing the in the range 1–3 first increases and then decreases the liquefaction resistance; this trend reverses at the higher . Two critical state parameters based on the void ratio and the coordination number at the pre-shearing state of the samples correlate well with the cyclic liquefaction resistance for the ranges of and considered in this study.
Effect of coefficient of uniformity on cyclic liquefaction resistance of granular materials
https://orcid.org/0000-0002-6983-8173
https://orcid.org/0000-0002-6409-3942
https://orcid.org/0000-0003-2067-8161
Abstract Using three-dimensional discrete element method, we analyze the particle size distribution (PSD) effect on the cyclic liquefaction resistance of spherical particle assemblies. For the same mean particle size and log-linear type PSD, the coefficient of uniformity () is chosen as a descriptor of the PSD. Samples with five levels of are isotropically compressed to the same pressure and two relative densities () informed by the maximum and minimum achieved void ratios determined for each . The ten samples are subjected to constant volume cyclic simple shearing at different cyclic stress ratios until reaching initial liquefaction, in 56 simulations. The simulations suggest that at each the evolution pattern of excess pore pressure ratio against the number of loading cycles normalized by the number of cycles to liquefaction is minimally affected by the . For the samples with lower , increasing the in the range 1–3 first increases and then decreases the liquefaction resistance; this trend reverses at the higher . Two critical state parameters based on the void ratio and the coordination number at the pre-shearing state of the samples correlate well with the cyclic liquefaction resistance for the ranges of and considered in this study.
Effect of coefficient of uniformity on cyclic liquefaction resistance of granular materials
Banerjee, Sounik Kumar (Autor:in) / Yang, Ming (Autor:in) / Taiebat, Mahdi (Autor:in)
27.12.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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