... Emerald Publishing Limited Licensed re-use rights only elastic wave velocity fabric granular materials strain localisation X-ray tomography National Natural Science Foundation of China 52178344 52208364 Shanghai ‘Shuguang Program’ 20SG22 Xiaomin Liang acknowledges...

...Yaolan Tang; Chunshun Zhang Crushable granular materials exhibit complex mechanical behaviour due to the interplay between crushing, contraction and dilation. Traditional constitutive models often struggle to capture these coupled effects and rely heavily on employing more fitting parameters...

...Pongsapak Kanjanatanalert; Usman Ali; Ying Cui; Mamoru Kikumoto Granular materials exhibit path-dependent stiffness following preshearing; however, the micromechanical origins of this behaviour remain insufficiently understood. While numerical simulations have provided valuable insights...

... ) that innovatively incorporates fabric evolution as a physical constraint and synergistically combines it with scientific discovery techniques to identify governing equations without prior physical assumptions. An oscillatory simple shear flow of granular materials with different shear amplitudes is simulated...

...Dong Liao; Chao Zhou; Zhongxuan Yang In practical geotechnical engineering, soil elements in the ground often experience varying stress paths involving loading reversals. To better understand the incremental behaviour of granular material under these conditions and enhance associated constitutive...

...Yadong Wang; Xiaogang Guo; Wei Wu; Hongwei Zhou; Zhi Li Granular materials exhibit solid-like and fluid-like behaviour in different flow regimes, governed by intergranular frictions, collisions and viscous force from the interstitial fluid. In this paper, a state- and rate-dependent constitutive...

... re-use rights only bio geotechnics biotreatment calcium carbonate consolidation behaviour critical state soil mechanics granular materials granular soil MICP shearing response soil behaviour To the best of the present authors’ knowledge, there has been no attempt...

... Licensed re-use rights only granular materials modulus of elasticity particle size particle surface roughness resonant column tests sands shear modulus small strain A Veeco NT9100 optical profilometer was used to measure the surface roughness of the materials. Typical contours...

...Tianzheng Fu; Stuart Kenneth Haigh; Benyi Cao Well-graded granular materials are extensively used in the foundation layers of roads and railways. Excessive deformation developed in these layers under traffic-induced cyclic loading represents a major contributor to structural deterioration...

... in coarse granular materials, emphasising the role of particle breakage. The model is extended from the existing cyclic densification model within the framework termed ‘shakedown surface model’, integrating breakage effects. In this model, shakedown thresholds, associated with material densification...

...-linear transition from low to high shear strains. The model hence provides a new framework for a better understanding of the behaviour of granular materials in low-gravity (extra-terrestrial) conditions. Various tests can be combined for measuring changes in soil stiffness at low and high strain...

...Shao-Heng He; Zhen-Yu Yin; Zhi Ding Both the liquefaction resistance of granular materials under complex multidirectional cyclic loadings and the influence of particle form or morphology on that resistance are poorly understood. This paper presents an experimental investigation on this topic. Round...

... at equilibrium, this simplifies to: granular materials modulus of elasticity non-linear elasticity pressure dependence stiffness wave speed 6 σ α β , β * = 0 where σ α β * is the homogeneous reference (or unperturbed) stress. By first-order Taylor...

... carbonate gravel granular materials laboratory tests particle crushing/crushability particle crushing strength particle shape particle size particle-scale behaviour Carbonate soil is a type of marine sediment formed by marine biological debris such as corals, foraminifera and shells. It has...

... Licensed re-use rights only discrete element method dispersion fines content granular materials micromechanics numerical simulations small strain stiffness wave propagation B_s, α_s, β_s fitting...

...Tao Xie; Peijun Guo; Dieter Stolle The phenomenon of vibration-induced shear resistance relaxation (ViSRR) refers to the loss of shear resistance in granular materials subjected to vibration, without an observable increase of excess pore pressure, under restricted deforming conditions. Essentially...

... granular materials laboratory tests particle-scale behaviour rocks/rock mechanics stiffness Continuum models of soil behaviour have become ever more complex, but still struggle to cope with the multiple factors that influence soil behaviour: plasticity, the influence of stress history...

...., 2000 ; Cho et al., 2006). Artificial granular materials such as glass beads (Xiao et al., 2019) or three-dimensional (3D)-printed plastic (Ahmed & Martinez, 2022) were also used to investigate the effect of particle shape. Experiments using a mixture of round and angular soils...

... deformation granular materials ground reaction curve soil arching soils & ground conditions surface settlement trapdoor test National Natural Science Foundation of China 42272315 This work was financially supported by the National Natural Science Foundation of China (grant no. 42272315...

...Zhuang Cheng; Jianfeng Wang; Wei Xiong A machine learning-based strategy is presented to estimate the contact force chains of uniformly sized spherical granular materials under triaxial compression, using particle kinematics and inter-particle contact evolution data measured by X-ray micro...