On the vibrations of the Electrorheological sandwich disk with composite face sheets considering pre and post-yield regions

Kong, Fanlei; Dong, Fang; Duan, Maojun; Habibi, Mostafa; Safarpour, Hamed; Tounsi, Abdelouahed

doi:10.1016/j.tws.2022.109631

Cited by 68 publications

(6 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, there is still a lack of verification methods for SFEM with random field. In most cases, the Monte-Carlo method is used for such a purpose, but it definitely and inevitably has the disadvantage of absolute dependence on the amount of samples [ 37 , 38 , 39 , 40 ]. Hence, it is very crucial and urgent to build an effective analysis model of free vibration for the structure with random field and to develop a new verification method regarding the presented model.…”

Section: Introductionmentioning

confidence: 99%

Uncertain Dynamic Characteristic Analysis for Structures with Spatially Dependent Random System Parameters

Zhou

et al. 2023

Materials

View full text Add to dashboard Cite

This work presents a robust non-deterministic free vibration analysis for engineering structures with random field parameters in the frame of stochastic finite element method. For this, considering the randomness and spatial correlation of structural physical parameters, a parameter setting model based on random field theory is proposed to represent the random uncertainty of parameters, and the stochastic dynamic characteristics of different structural systems are then analyzed by incorporating the presented parameter setting model with finite element method. First, Gauss random field theory is used to describe the uncertainty of structural material parameters, the random parameters are then characterized as the standard deviation and correlation length of the random field, and the random field parameters are then discretized with the Karhunen–Loeve expansion method. Moreover, based on the discretized random parameters and finite element method, structural dynamic characteristics analysis is addressed, and the probability distribution density function of the random natural frequency is estimated based on multi-dimensional kernel density estimation method. Finally, the random field parameters of the structures are quantified by using the maximum likelihood estimation method to verify the effectiveness of the proposed method and the applicability of the constructed model. The results indicate that (1) for the perspective of maximum likelihood estimation, the parameter setting at the maximum value point is highly similar to the input parameters; (2) the random field considering more parameters reflects a more realistic structure.

show abstract

Section: Introductionmentioning

confidence: 99%

Uncertain Dynamic Characteristic Analysis for Structures with Spatially Dependent Random System Parameters

Zhou

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…The reaction of carbide with Si can evidently promote densification [ 21 , 22 ], and the product SiC can improve mechanical properties by inhibiting grain growth [ 23 , 24 ]. Furthermore, nanoparticle-reinforced composites are an important method to improve material properties [ 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Enhanced Mechanical Properties of (Zr, Ti)(C, N)-Based Nanocomposites Fabricated by Reactive Hot-Pressing at Low Temperature

et al. 2023

View full text Add to dashboard Cite

Dense and enhanced mechanical properties (Zr, Ti)(C, N)-based composites were fabricated using ZrC, TiC0.5N0.5, and Si powders as the raw powders by reactive hot-pressing at 1500–1700 °C. At the low sintering temperature, both (Zr, Ti)(C, N) and (Ti, Zr)(C, N) solid solutions were formed in the composites by adjusting the ratio of ZrC to TiC0.5N0.5. During the sintering process, the Si added at a rate of 5 mol% reacted with ZrC and TiC0.5N0.5 to generate SiC. With the increase in Si addition, it was found that the residual β-ZrSi was formed, which greatly reduced the flexural strength of composites but improved their toughness. The reaction and solid-solution-driven inter-diffusion processes enhanced mass transfer and promote densification. The solid solution strengthening and grain refinement improved the mechanical properties. The ZrC–47.5 mol% TiC0.5N0.5–5 mol% Si (raw powder) composite possessed excellent comprehensive performance. Its flexural strength, Vickers hardness, and fracture toughness were 508 ± 33 MPa, 24.5 ± 0.7 GPa, and 3.8 ± 0.1 MPa·m1/2, respectively. These reached or exceeded the performance of most (Zr, Ti)(C, N) ceramics reported in previous studies. The lattice distortion, abundant grain boundaries, and fine-grained microstructure may make it possible for the material to be resistant to radiation.

show abstract

“…The influence of the thermal environment associated with the auxeticity of sandwich beams was probed by Li et al 6 The same research group 7 also presented the nonlinear dynamic characteristics of sandwich beams with FG auxetic core. The auxetics combined with other variants of conventional sandwich structures 8–15 can tremendously benefit the engineering domain by increased weight reduction and structural integrity.…”

Section: Introductionmentioning

confidence: 99%

Integrated effects of auxeticity and pyro-coupling on the nonlinear static behaviour of magneto-electro-elastic sandwich plates subjected to multi-field interactive loads

Mahesh

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

This work presents a detailed investigation of the effect of auxeticity synergised with the pyro-coupling behaviour of multiphase magneto-electro-elastic (M-MEE) composites using a finite element (FE) framework. The nonlinear deflection and bending problems of sandwich plates with auxetic core and M-MEE skins subjected to multi-physics load (electric, magnetic and thermal) are probed. The plate kinematics is governed by Reddy’s higher-order shear deformation theory (HSDT). The nonlinear relation between the strains and displacements is established through von-Karman’s nonlinear relations. The temperature profiles are considered linearly and nonlinearly varying across the thickness of the plate. Various parametric studies presented in this article highlight the influence of the auxetic cell inclination angle, rib-length ratio, rib thickness, the plate-to-core ratio etc., associated with the pyro-coupling on the nonlinear deflection and bending of sandwich plates. The results reveal that the plate deflection, bending behaviour and degree of pyro-coupling significantly depend on the auxetic unit cell dimensions and magnitude of electro-magnetic loads. The significant influence of temperature profiles on the pyro-coupling are witnessed at lower auxetic cell angle. The nonlinear deflections of the sandwich plate and hence the potentials developed tend to improve with the lower values of plate-to-core ratio and rib thickness. The prominent outcomes of this work related to integrated effects of auxeticity and pyro-coupling are not yet reported in the open literature and are deemed to be utilised as a future reference.

show abstract

On the vibrations of the Electrorheological sandwich disk with composite face sheets considering pre and post-yield regions

Cited by 68 publications

References 48 publications

Uncertain Dynamic Characteristic Analysis for Structures with Spatially Dependent Random System Parameters

Uncertain Dynamic Characteristic Analysis for Structures with Spatially Dependent Random System Parameters

Microstructures and Enhanced Mechanical Properties of (Zr, Ti)(C, N)-Based Nanocomposites Fabricated by Reactive Hot-Pressing at Low Temperature

Integrated effects of auxeticity and pyro-coupling on the nonlinear static behaviour of magneto-electro-elastic sandwich plates subjected to multi-field interactive loads

Contact Info

Product

Resources

About