A concrete mixture was prepared with dimensions of approximately 100 mm × 100 mm × 100 mm. The cement was Type I P⋅O 42.5, ordinary Portland cement (Huaxin Cement Co., Ltd., Ezhou, China), with a specific gravity of 3.15 and a Blaine fineness of 4500 cm 2 /g. The fine and coarse aggregates were provided by a local construction …

The collapse characteristics and energy absorption capability of composite tubes with different fibers and matrix were studied in present article under axial quasi-static and impact crushing conditions. The sensitivity to fibers, matrix and loading conditions were thoroughly discussed for the crushing modes and energy absorption capability. …

Additionally, the mean crushing force of STF-filled honeycomb has a power law relation to the honeycomb wall thickness for each specific loading velocity. Moreover, the mean crushing force contributed by STF is proportional to loading velocity and the increase in velocity significantly improves the percentage of viscous energy to the total …

The average axial crushing force of SCSs is approximately 23.4 times the weight of the empty can itself. Furthermore, the SCSs exhibit excellent crashworthiness performance in various dynamic impact scenarios and superior energy absorption characteristics compared to other typical tubular composites and metamaterials. This …

Tubular components of aluminium alloys find application in body-in-white to achieve weight reduction owing to growing demand of fuel efficiency in new age vehicles. However, fabrication of tubes through conventional extrusion route are restricted by tube size, cost and expensive dies. Therefore, tubular structures of AA 5083 (length to …

A cone crusher and a vertical shaft impact (VSI) crusher were operated in closed circuit to compare the performance of the two different crushing machines. The crushers were operated in closed ...

Test Procedures for the Characterization of Crusher Performance. Starting from the base working principle that compression is the forcing of two surfaces towards …

The common characteristics (water absorption, density, and crushing value) of two recycled aggregates with the same particle size were compared. ... The mass production of concrete and construction waste will significantly impact the natural environment. ... Mechanical performance and thermal stability of hardened Portland …

Nature offers many good references and inspirations for devising thin-walled structures with better mechanical performance, such as: the stem of wheat [59], grass [60] and bamboo [61] as shown in Figs. 1(a), (b) and (c), respectively. ... Its dynamic crushing performance and energy absorption behaviours are comprehensively investigated …

Crushing performance of a novel tetra-missing rib honeycomb: Experimental and numerical studies ... Adding the effect of symmetrical design on the conventional tetra-missing rib honeycomb mechanical performance, among them, the stress deformation of TMRAH-RH has the most obvious negative Poisson's ratio effect, …

This article will give the complete details on aggregate crushing test. Aggregate Impact Value Test. Aggregate impact value test is a method to measure the resistance of coarse aggregates to sudden impact loading. It is commonly used in civil engineering projects to assess the quality and strength of aggregates for pavement and …

Different indenters have a significant influence on the mechanical behavior of the prismatic LIBs. Under the same impact rate and SOC, the peak load of a flat head is considerably larger than that of a round head. The battery exhibits a hard short-circuit under the impact of a round head and a soft short-circuit under the impact of a flat head.

Optimization of the Mechanical Comminution – The Crushing Stage. Ngonidzashe Chimwani, Ngonidzashe Chimwani. Department of Mining Engineering, University of South Africa (UNISA), Florida Campus, Johannesburg, South Africa ... have shown great potential to reduce the energy consumption of impact crushers. This is …

In summary, impact crushers are a powerful and vesatile type of crushing equipment used in the mining and construction industries. By utilizing the force of high-speed impact, these machines can break down a variety of materials quickly and efficiently. However, like any machinery, impact crushers have their limitation.

To study the influence of filling mode on the mechanical behavior, except for the hollow case, filled with no any circular tube (see red square zone in the last row in Table 1), other six types of filling patterns have been adopted in this investigation, as the schematic shown in the last row in Table 1.They were honeycomb core filled as central …

In this paper, the FE simulations of MRACHs under the in-plane (in direction x 2, Fig. 1) crushing loadings are carried out by using the explicit FE product ANSYS/LS-DYNA at the impact velocities 3–250 m/s. The dynamic deformation modes, plateau stresses and energy absorption performance of MRACHs are presented in the forms of …

mechanical properties of rocks on the performance of crushers. Based on these studies, the most important characteristics that affect crushing energy are fracture toughness,

However, due to the high production rate and the challenging working conditions, various mechanical and tribological issues (Fig. 2) arise throughout this crushing process, ultimately causing ...

Crushing analysis under multiple impact loading cases for novel tailored-property multi-wall tubes. Xi Wang a School of Mechanical Engineering, Dalian Jiaotong …

However, the crushing process that occurs during construction may affect the mechanical properties and leachability of the reused stabilized soil, an issue that is less reported. Therefore, consolidated undrained triaxial tests and semi-dynamic leaching tests were conducted on stabilized sediments and recompacted crushed stabilized sediment ...

Crushing performance of auxetic tubes under quasi-static and impact loading June 2022 Journal of the Brazilian Society of Mechanical Sciences and Engineering 44(6)

Nowadays, the use of energy-absorbing systems in various industries such as automotive, aircraft, and ships has received more attention from researchers [].The performance of these systems is such that after applying force, crushing and deformation occur, which is associated with energy absorption and consumption of applied force …

important mechanical strength performance criteria for CFB. This paper compares the predictive performance of the analytical, FE equivalent shell, and ideal and real shape microgeometry FE

In order to evaluate the mechanical performance of recycled concrete, cube compressive strength and flexural tensile strength tests were performed. ... After secondary crushing using an impact crusher or an E-crusher aggregate crushing plant, the concrete was graded into three types of fine and coarse recycled aggregates with …

The impact crusher (typically PE series) is widely used and of high production efficiency and good safety performance. The finished product is of cube shape and the tension force …

The syenite aggregate has a higher content of elongated and flaky particles, and because of its larger crushing value, its strength is not high and the particle gradation is poor, which results in syenite concrete with a low tensile elasticity modulus, and the 28 d tensile elasticity modulus was the same as the 90 d tensile elasticity modulus ...

The impact of the stress level on the mechanical behavior and particle crushing of granular materials was studied. A new method of using the shear fracture zone to characterize the deformation of ...

The effects of cell number and impact velocity on the crushing behaviors were further explored. To evaluate the dynamic crushing performance of -filled PHC structures, comparison with -filled hexagonal honeycomb (FHH) and -filled re-entrant honeycomb (FRH) structures was conducted. 2. Model design and materials2.1.

The performance of cement mortars using manufd. fine aggregates produced by cone crushing or impact crushing has been compared to that of mortars prepd. from a natural sand control-sample. …

The impact crusher working principle involves a high-speed rotor that rotates around a horizontal axis. The rotor is equipped with a series of hammers that strike the material as it enters the crushing …