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Based on a standard compaction test and a standard sieve analysis test on five tested materials, the effects of the particle size distribution on the compaction behavior and particle crushing of a crushed mudstone particle mixture were investigated. Testing results indicate that the value of the maximum dry density ranges from 2.09 to 2.17 …
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Soil-rock mixtures (SRM) are extensively utilized as filling materials in engineering slopes and roadbeds. A comprehensive understanding of the crushing characteristics of SRM during compaction is essential for precisely controlling its mechanical properties, particularly when dealing with SRM comprising soft rock blocks. This study conducted heavy …
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Based on a standard compaction test and a standard sieve analysis test on five tested materials, the effects of the particle size distribution on the compaction behavior and particle crushing of a ...
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Cellular material under high-velocity impact exhibits a typical feature of layerwise collapse. A cell-based finite element model is employed herein to simulate the direct impact of a closed-cell , and one-dimensional velocity field distributions are obtained to characterize the crushing band propagating through a cellular material. An …
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rticle crushing and how it effects the engineering properties of the granular materials. The aim of this study is to investi-gate the effect of crushing on the bulk behavior of …
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DOI: 10.1016/j.tws.2023.110720 Corpus ID: 257871969; Influence of density gradient and hybrid effect on quasi-static axial crushing behavior of lattice cylindrical structures
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Particle breakage was reported to have great influence on the mechanical property of granular materials. However, limited studies were conducted to quantify the detailed effects of relative density and …
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1. Introduction. The arching effect is a common phenomenon existing in many geotechnical applications (Terzaghi, 1943, Wang and Chen, 2019, Chen et al., 2020a), triggered by the relative movement between the stationary and mobilized portions of soils.Due to the arching effect, part of the load transfers from the mobilized portion to …
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In this study, single-particle crushing tests were carried out on rockfill materials with nominal particle diameters of 2.5 mm, 5 mm and 10 mm to investigate the particle size effect on the single-particle strength and the relationship between the characteristic stress and probability of non-failure.
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DEM simulation of the size effect on the wetting deformation of rockfill materials based on single-particle crushing tests. Author links open overlay panel Shao Xiao-quan a b, Chi Shi-chun a b, Tao Yong c, Zhou Xiong-xiong a b. Show more. Add to Mendeley ... Effect of gradation curve and dry density on collapse deformation behavior …
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Therefore, the degree of difficulty in beneficiating a typical coal at a particular specific gravity depends on the amount of material occurring within ±0.1 specific gravity range. This is known as 'neargravity' material, also termed 'near-dense' material, at that particular specific gravity of separation.
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Additionally, work was performed to determine if crushing before blending had a different effect on particle shape and bulk density than blending then crushing. Materials and Methods The procedures used in this study were similar to those followed in the previous study [ 4 ] except that coke blending was limited to a ratio of 50% higher …
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Subsequently, the quasi-static compression tests were performed on the fabricated 3D printed cubes to examine the effect of infill pattern, infill density and material types on crushing failure ...
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With the evolution of nature, architected cellular materials are equipped with low density, high stiffness and high strength. The beaks and bones of birds, for example, contain highly porous, cellular core [].Owing to their desirable energy absorption capacity and mechanical properties, architected cellular materials have been intensively applied …
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Request PDF | Influence of density gradient and hybrid effect on quasi-static axial crushing behavior of lattice cylindrical structures | Uniform/gradient lattice cylindrical structures (ULCS/GLCS ...
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The compaction behavior and particle crushing during compaction of the crushed sandstone–mudstone particle mixture, which is used as a filling material, are investigated in the present study. The value of the maximum dry density, deduced from a standard compaction test, ranges from 2.08 to 2.13 g/cm3, and that of the optimum …
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Recently, the recycling of waste glass has become a worldwide issue in the reduction of waste and energy consumption. Waste glass can be utilized in construction materials, and understanding its effects on material properties is crucial in developing advanced materials. In this study, recycled crushed and expanded glasses are used as lightweight …
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the change in mass of the near gravity material at a particular specific gravity on crushing should be determined accurately. The difficulty in washing a particular coal can be …
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Strength and deformation behaviors of rockfill materials, key factors for determining the stability of dams, pertain strongly to the grain crushing characteristics. In this study, single-particle crushing tests were carried out on rockfill materials with nominal particle diameters of 2.5 mm, 5 mm and 10 mm to investigate the particle size effect on the single-particle …
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The effects of crushing on the wet bulk density were of interest because this value directly effects the mass of material that could be loaded on a truck. As expected, the pressure required to achieve the target wet bulk density was much lower than the pressure required to reach a bulk density of 256 dry kg m −3 .
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1 Introduction. Understanding the connection between strain localization and individual particle kinematics in granular materials is a fundamental challenge in …
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Particle geometry is a result of natural processes, such as the genesis of parent rock, particle transportation and depositional history. For granular materials, the particle morphology has a significant effect on its crushing strength in geotechnical engineering. The particle morphological parameters, sphericity, aspect ratio and …
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Micromechanically accurate random s are used to examine the effect of relative density on the crushing response and energy absorption of aluminum open-cell s for a range of loading rates. Random soap froth microstructures generated with the Surface Evolver software are dressed with shear deformable beam elements with …
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Split Hopkinson pressure bars (SHPB) (Fig. 1 (a)), Taylor impact (Fig. 1 (b) and (c)), Bi-pendulum (Fig. 1 (d)), MTS (material testing system) are the usual equipments used to obtain the dynamic mechanical properties of cellular materials at different strain rates.Practically the crushing stress of a cellular material is measured at either the …
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A mesoscale numerical model based on Voronoi tessellation is developed to investigate the loading rate effect on the crushing stress of cellular materials. The crushing stresses at both the impact and stationary ends of the Voronoi structures are simulated. The influences of the impact velocity, specimen size, inertia, and rate …
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The stabilized resilient modulus is the one considered in this study. Resilient moduli of the original and crushed materials were first examined to delineate the effect of density and stress on these materials. Table 1, presenting the results of all tests undertaken, shows that both materials exhibited similar trends. At the same level of ...
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New experimental data and results from published studies are gathered into two databases to explore the effects of particle shape on packing density and on the …
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To contribute to the understanding of the size effect and the connection between the particle breakage and the size effect on the shear strength and …
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It is widely understood that most mechanical and other properties of cellular materials scale with their relative density see Ref. [10]. Thus the present study examines the effect of the relative density on crushing and energy absorption at different loading rates ranging from quasi-static to sub- and super-critical impact velocities.
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Shi et al. investigated the effects of intermediate principal stress ratio b and particle breakage on the critical state behaviors of granular materials using the octahedral shear stress crushing criterion. However, few attention has been drawn to the particle size effect, by employing these breakage models.
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