Results 51 to 60 of about 34,295 (236)

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

open access: yesDeep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei   +4 more
wiley   +1 more source

Impact-Induced Liquefaction Mechanism of Sandy Silt at Different Saturations

open access: yesAdvances in Civil Engineering, 2021
Landslide-induced liquefaction has received extensive attention from scholars in recent years. In the study of loess landslides in the southern Loess Plateau of Jingyang, some scholars have noted the liquefaction of the near-saturated sandy silt layer ...
Heng Li   +4 more
doaj   +1 more source

A micromechanical model of collapsing quicksand

open access: yes, 2010
The discrete element method constitutes a general class of modeling techniques to simulate the microscopic behavior (i.e. at the particle scale) of granular/soil materials.
Andrade Jr., Jose S.   +2 more
core   +1 more source

Unified anisotropic elastoplastic model for sand [PDF]

open access: yes, 2016
This paper presents a unified approach to model the influence of fabric anisotropy and its evolution on both the elastic and plastic responses of sand.
Gao, Zhiwei, Zhao, Jidong
core   +4 more sources

Elastoplasticity Informed Kolmogorov–Arnold Networks Using Chebyshev Polynomials

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Multilayer perceptron (MLP) networks are predominantly used to develop data‐driven constitutive models for granular materials. They offer a compelling alternative to traditional physics‐based constitutive models in predicting non‐linear responses of these materials, for example, elastoplasticity, under various loading conditions. To attain the
Farinaz Mostajeran, Salah A. Faroughi
wiley   +1 more source

Paenibacillus brasilensis sp nov., a novel nitrogen-fixing species isolated from the maize rhizosphere in Brazil [PDF]

open access: yes, 2002
Sixteen nitrogen-fixing strains isolated from the rhizosphere of maize planted in Cerrado soil, Brazil, which showed morphological and biochemical characteristics similar to the gas-forming Paenibacillus spp., were phenotypically and genetically ...
Duarte, G.F.   +3 more
core   +1 more source

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

open access: yesJournal of Polymer Science, EarlyView.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba   +4 more
wiley   +1 more source

In-situ liquefaction tests considering effects of overburden pressure

open access: yesYantu gongcheng xuebao
The in-situ liquefaction test is a new and exploratory research approach for soil liquefaction in geotechnical engineering in recent years. At present, in the in-situ liquefaction tests by the previous researchers, the overburden pressure of the ...
FU Haiqing 1, 2, YI Jixiang 1, FENG Luwei 1, YANG Jiyuan 1
doaj   +1 more source

Liquefaction analysis of abrasion protection structure in Padang

open access: yesMATEC Web of Conferences, 2018
The liquefaction potential of a soil deposit is an important aspect to consider the stability of structure due to the earthquake. The liquefaction may also contribute to the safety of coastal constructions. The assessment of liquefaction potential can be
Hakam Abdul   +3 more
doaj   +1 more source

The Over-Prediction of Seismically Induced Soil Liquefaction during the 2016 Kumamoto, Japan Earthquake Sequence

open access: yesGeosciences, 2022
Following the M7.0 strike-slip earthquake near Kumamoto, Japan, in April of 2016, most geotechnical engineering experts believed that there would be significant soil liquefaction and liquefaction-induced infrastructure damage observed in the densely ...
Donald J. Anderson   +4 more
doaj   +1 more source

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