Mechanical behavior of entangled metallic wire materials-polyurethane interpenetrating composites

Zheng, Xiaoyuan; Ren, Zhiying; Bai, Hongbai; Wu, Zhangbin; Guo, You-song

doi:10.1016/j.dt.2022.03.007

Cited by 12 publications

(4 citation statements)

References 33 publications

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“…Recent scholarly interest has focused on exploring metal rubber composite structures. Zheng et al [6] investigated a composite of entangled metallic wire and polyurethane, utilizing metallic wire as the matrix and polyurethane for reinforcement. Their dynamic mechanical tests indicated superior mechanical performance in the composite compared to the pure material.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core

Zhang,

Wang,

Zheng

et al. 2024

Metals

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Sandwich structures and porous materials have been applied widely in various fields due to their excellent mechanical performance, and multifunctional composites will have a significant engineering demand in the future. Studying damped composites’ mechanical properties and failure forms has significant engineering value and significance. However, the current connecting processes for sandwich panels and porous materials must be improved. Therefore, to explore the ambiguity of the connection interface between the core material and panel in sandwich panels, as well as the mechanical properties of such structures, a sandwich panel with a metal rubber core material was prepared using vacuum brazing and cementing processes. Microscopic examinations using scanning electron microscopy and energy-dispersive spectroscopy were conducted to observe the physical bonding mechanism at the interface of the sandwich panel. The results indicate that the brazed sandwich panels exhibited a more uniform and continuous interface than the cemented sandwich panels. This work designs three-point bending compression experiments to investigate the effects of core material thickness, density, and preparation process on the bending mechanical properties of the sandwich panel. Failure modes of the sandwich panel during the experiments are analyzed. The experimental results show that the failures of the brazed sandwich panels are attributable to the bending deformation of the panel and the shear failure of the metal wire core material. The cemented sandwich panels exhibit separation failures in the area below the indenter and at both ends of the panel. The core material’s thickness and density significantly influence the bending performance of the sandwich panels. An increase in the core material’s thickness and density effectively enhances the sandwich panels’ peak load and energy absorption capacity.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core

Zhang,

Wang,

Zheng

et al. 2024

Metals

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“…Vibration is a common physical phenomenon in engineering and technology, affecting the operation of the equipment and the mechanical power system while reducing its lifespan [ 1 , 2 ]. The traditional passive vibration isolation system has been widely used in vibration isolation due to its simple structure and low cost [ 3 , 4 , 5 ]. However, traditional vibration isolation systems cannot be adjusted in real time based on changes in external excitation frequency.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristic Analysis of a Toothed Electromagnetic Spring Based on the Improved Bouc—Wen Model

et al. 2023

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Electromagnetic spring active isolators have attracted extensive attention in recent years. The standard Bouc–Wen model is widely used to describe hysteretic behavior but cannot accurately describe asymmetric behavior. The standard Bouc–Wen model is improved to better describe the dynamic characteristic of a toothed electromagnetic spring. The hysteresis model of toothed electromagnetic spring is established by adding mass, damping, and asymmetric correction terms with direction. Subsequently, the particle swarm optimization algorithm is used to identify the parameters of the established model, and the results are compared with those obtained from the experiment. The results show that the current has a significant impact on the dynamic curve. When the current increases from 0.5 A to 2.0 A, the electromagnetic force sharply increases from 49 N to 534 N. Under different excitations and currents, the residual points predicted by the model proposed in this work fall basically in the horizontal band region of −20–20 N (for an applied current of 1.0 A) and −40–80 N (for an application of 4.5 mm/s). Furthermore, the maximum relative error of the model is 12.75%. The R2 of the model is higher than 0.98 and the highest value is 0.9993, proving the accuracy of the established model.

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“…Passive vibration isolation does not require an energy source or an external power or control system during operation. Common passive vibration isolation systems are usually composed of elastic elements, damping elements, or inertial elements, such as steel springs, rubber pads, and polymer materials [5][6][7][8]. Due to the high precision requirements of precision manufacturing and measurements and the need for environmental noise reduction [9], conventional passive control methods can hardly meet the increasingly stringent vibration control requirements.…”

Section: Introductionmentioning

confidence: 99%

Parametric Analysis of the Toothed Electromagnetic Spring Based on the Finite Element Model

Zheng,

Zhang,

Lou

et al. 2023

Aerospace

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Active vibration control shows excellent performance in vibration isolation. In this work, the finite element model of a toothed electromagnetic spring (TES) is established using ANSYS Maxwell software. Subsequently, a static characteristic experiment of the TES is carried out, and the validity of the model is verified. Based on the established finite element model, the influence of key structural parameters on the static characteristics of the electromagnetic spring is analyzed. The results show that the parameters of the magnetic teeth have a significant impact on the performance of the electromagnetic spring. As the number of teeth increases, the electromagnetic force first increases and then decreases. With the increase in the tooth height or width, the maximum electromagnetic force gradually increases to the maximum value and then stabilizes. It should be noted that the tooth width simultaneously affects the maximum electromagnetic force, stiffness characteristics, and effective working range of the TES. This work provides a basis for further exploring the application of electromagnetic springs within the field of active vibration control.

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Mechanical behavior of entangled metallic wire materials-polyurethane interpenetrating composites

Cited by 12 publications

References 33 publications

Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core

Experimental Investigation of the Three-Point Bending Property of a Sandwich Panel with a Metal Rubber Core

Dynamic Characteristic Analysis of a Toothed Electromagnetic Spring Based on the Improved Bouc—Wen Model

Parametric Analysis of the Toothed Electromagnetic Spring Based on the Finite Element Model

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