##tihuan2##The stress–strain curves of the whole dynamic crushing process were obtained, and the strain rate effect of pre-peak and post-peak dynamic characteristics was analyzed. At the same time, the ...
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##tihuan2##Enlarging the area of the curve segment to a certain extent can increase the crushing possibility between the ore particles, thus increasing the mass percentage of effective particles. 4. Conclusions. The crushing process of the gyratory crusher is reproduced based on DEM simulation and the actual situation.
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##tihuan2##As the input work increases, the grading curves of coarse-grained soils shift leftward, and the relative crushing increases. Among the three representative particle morphological parameters (i.e., aspect ratio, convexity and sphericity), the particle sphericity most significantly influences the deformation and crushing properties of coarse ...
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##tihuan2##Crushing plants are of great interest in reducing a particle size of rocks and ores as milling operations need to consider sustainable development. Since the crushing plants operate under harsh conditions and involve very abrasive material, multiple factors can influence their performance. This paper assesses a number of factors affecting the ...
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##tihuan2##TABLE OF CONTENTS Chapter Subject / section name Preface Table of Contents 's Mining and Construction Technology 1 Quarry Process + Process Integration and Optimization (PIO) 2 Feeders 3 Crushing Equipment 3 C-Series Jaw Crushers 3 Superior MK-II Primary Gyratory Crushers 3 GP Series Cone Crushers 3 MP Series Cone …
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##tihuan2##Figure 11 gives the corresponding relation curves of the nominal crushing plateau stresses σ p /σ ys with respect to t/l in the double logarithmic plot under different impact velocities. In the figure, the …
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##tihuan2##A series of crushing experiments were performed on different configuration of aluminum honeycomb core which were made of aluminum alloy 3003 H18 with a density of 27.3 kg/m 3.The mechanical properties of the aluminum foil (3003 H18) with t = 0.08 mm are given in Table 3 (Ref 13) they were obtained by using the tensile specimens with …
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##tihuan2##The dynamic crush curve is an important parameter to evaluate the energy absorption capacity of a crashworthy device. The dynamic crush curve can be obtained by numerical simulation or physical testing.
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##tihuan2##The effect of the crushing strength of LWA on the stress–strain relationship of concrete was evaluated by comparing the normalized stress–strain curves fitted with quadratic equation for all types of LWA The parameters a and b of the fitted quadratic equation (Table 4) as obtained by the single-curve technique for different LWA volume ...
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##tihuan2##The crushing energy is analysed based on the first law of thermodynamics. ... we can see that the evolution of the crushing energy curves is consistent with the change in the number of microcracks ...
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##tihuan2##To optimize the crushing chamber of the gyratory crusher, the discrete element method (DEM) is used to explore the influence of the concave curve height, concave curve radius, eccentric angle, and mantle shaft speed on the performance of the crushing chamber in this paper, here, the DEM analysis model of iron ore particle is …
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##tihuan2##Crushing of industrial waste aggregates is less dependent on its initial density. • Shifting of gradation curves after particle crushing is material specific. • For a particular stress level, crushing potential of larger size particles is more. • Stress level and minerology are the dominant factors that decide particle breakage. •
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##tihuan2##Granular crushing significantly changes mechanical behaviours, especially under elevated stress levels. Therefore, this study aims to develop a model to simulate …
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##tihuan2##A power-law relation between the dynamic initial crushing stress and the strain rate is established, which confirms the strain rate effect of cellular materials. ... Compared with the quasistatic stress–strain curve of a cellular material, a significant difference is observed in the dynamic stress–strain curve, which can be explained based ...
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##tihuan2##The application of pulse power discharge (PPD) technology in the crushing and dismantling of concrete structures has characteristics related to both green and environmental protection, as well as safety and reliability, with broad application prospects in the construction and municipal engineering fields in dense urban areas. Nevertheless, …
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##tihuan2##Download scientific diagram | Typical axial force–displacement curves of crushing tests of the rockfill particles with different size range: a 9.5–19.1 mm, b 19.1–25.4 mm, c 25.4–38.1 mm ...
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##tihuan2##Discretized macro-element method to evaluate the crushing behavior and protective performance of crashworthy devices under ship collisions. Jing Ge Tingyi Luo …
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##tihuan2##At any stage of the crushing process, the experimental resistance force is governed by the weakest possible collapse mode(s). The curves from the FEA and experiment have different amplitudes and ranges (see Figure 26). The amplitudes of the curve and wavelength of FEA are governed by element deletion, and the element size affects the …
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##tihuan2##Total energy absorption, E is the area under load-displacement curve between crush distances, which is shown in Figure 5, and calculated by integration of load, P as seen Eqn. (1); from ...
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##tihuan2##A virtual compression test, in which the specimen of cellular material is fixed at one end and loaded at the other end with a low constant velocity (say V = 1 m/s), was performed to obtain the quasi-static nominal stress–strain curve, as depicted in Fig. 3.The same specimen is used in order to ensure that the results are not influenced by micro …
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##tihuan2##DOI: 10.1016/J.MECHMAT.2016.07.001 Corpus ID: 138833119; Dynamic crushing of cellular materials: A unique dynamic stress–strain state curve @article{Ding2016DynamicCO, title={Dynamic crushing of cellular materials: A unique dynamic stress–strain state curve}, author={Yuanyuan Ding and Shilong Wang and …
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##tihuan2##SUMMARY. Square honeycombs are effective as cores for all-metal sandwich plates in that they combine excellent crushing strength and energy absorption with good stiffness …
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##tihuan2##This study showed that a rotary blade with a double-eccentric circular curve could better realize plant-crushing and consumption reduction and meet the operation requirements of Cyperus esculentus ...
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##tihuan2##A highly significant correlation is demonstrated between the forward inclination of the superficial masseter muscle and the forward tilt of molar teeth in the sagittal plane, conforming to the posterior end of the curve of Spee. The skulls studied included New and Old World monkeys, anthropoid apes, …
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##tihuan2##The in-plane dynamic crushing of 2D hexagonal-cell honeycombs has been simulated using finite elements to explore the dynamic response of cellular materials and to investigate the features of the ...
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##tihuan2##of the force-displacement curves of those particles. In addition, this paper makes a preliminary inquiry into the effect of equancy and circularity on particle crushing strength. However, due to its high brittleness and com-plex internal pore structure, the crushing strength of coral sand particles varies greatly even with similar appearance ...
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##tihuan2##In general, it is found from Fig. 4A and B that their stress–strain curves can be divided into three stages: linear rising stage, load-bearing stage and densification, while there is a clearer demarcation between the crushing stages in the stress–strain curve of the CMM-G under 0° and 10° crushing loads. Firstly, the stress of the CMM-G ...
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##tihuan2##In the compaction stage, the crushing curve correlates well with the cosine function. In the folding stage, the crushing process begins to lose stability and is hard to predict. The mathematical relationships between force and displacement were established according to the characteristics of each stage, and the calculated results were close to ...
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