Amplitude-dependent damping characteristics of all-composite sandwich plates with a foam-filled hexagon honeycomb core

Li, Hui; Liu, Yang; Zhang, Haiyang; Qin, Zhaoye; Wang, Zhaoyang; Deng, Yichen; Xiong, Jian; Wang, Xiangping; Ha, Sung Kyu

doi:10.1016/j.ymssp.2022.109845

Cited by 68 publications

(7 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The change in this potential is closely related to enthalpy (∆H) and entropy (∆S). The relationship of these three values is shown in Equation (1). An analysis of the manufactured filaments' chemical degradation was performed as part of the study.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Aluminium Matrix Composite Materials Reinforced by 3D-Printed Ceramic Preforms

et al. 2023

View full text Add to dashboard Cite

This article employed the fused deposition modelling (FDM) method and gas-pressure infiltration to manufacture alumina/AlSi12 composites. Porous ceramic skeletons were prepared by FDM 3D printing of two different alumina powder-filed filaments. The organic component was removed using a combination of solvent and heat debinding, and the materials were then sintered at 1500 °C to complete the process. Thermogravimetric tests and DTA analysis were performed to develop an appropriate degradation and sintering program. Manufactured skeletons were subjected to microstructure analysis, porosity analysis, and bending test. The sintering process produced porous alumina ceramic samples with no residual carbon content. Open porosity could occur due to the binder’s degradation. Liquid metal was infiltrated into the ceramic, efficiently filling any open pores and forming a three-dimensional network of the aluminium phase. The microstructure and characteristics of the fabricated materials were investigated using high-resolution scanning electron microscopy, computer tomography, hardness testing, and bending strength testing. The developed composite materials are characterized by the required structure—low porosity and homogenous distribution of the reinforcing phase, better mechanical properties than their matrix and more than twice as high hardness. Hence, the developed innovative technology of their manufacturing can be used in practice.

show abstract

Section: Methodsmentioning

confidence: 99%

“…These materials must, in particular, possess high strength, sufficient corrosion resistance, and excellent safety coefficients. One of the most important problems in material engineering is the development of desirable materials [1,2]. An effort was made to explain the phenomena that result in materials with suitable characteristics.…”

Section: Introductionmentioning

confidence: 99%

Aluminium Matrix Composite Materials Reinforced by 3D-Printed Ceramic Preforms

et al. 2023

View full text Add to dashboard Cite

show abstract

“…1 Based on the above fabrication and assembly processes, two FFCLC-FCCS specimens with the same material and different dimensions are prepared, named Specimen I and II, respectively, and their material parameters will be given in subsequent analysis and calculations. Note that Young's modulus, shear modulus, and Poisson's ratios of composite material are determined by a unidirectional quasi-static tensile test as per the ASTM-D638 standard [35], and the material parameters of the polyurethane foam are identified by the frequency response function (FRF) approximation method [36]. Besides, the geometric parameters of Specimen I and II are measured by using an electronic micrometer, which will also be provided in the follow-up section.…”

Section: Fabrication Of Specimenmentioning

confidence: 99%

Nonlinear dynamic modeling and experimental study of full-composite cylindrical shells with a foam-filled cavity lattice core

Dong,

Li,

et al. 2023

Nonlinear Dyn

Self Cite

View full text Add to dashboard Cite

A new full-composite cylindrical shell (FCCS) with a foam-filled cavity lattice core (FFCLC) is developed and prepared, and a nonlinear dynamic model considering the amplitude-dependent property of composite materials is proposed. Compared to traditional linear dynamic models, the lower frequencies and higher resonant responses of structures subjected to base harmonic excitations can be obtained in the proposed nonlinear dynamic model. The nonlinear dynamic behaviors of FFCLC-FCCSs are investigated theoretically and experimentally, in which the fabrication and assembly procedures of FFCLC-FCCS specimens are first provided, and vibration measurements are performed on those specimens subjected to different excitation amplitudes, wherein the soft nonlinear vibration phenomenon characterized by the amplitude-dependent property is discovered. Subsequently, in the framework of the first-order shear deformation theory based on the layerwise principle, the mode superposition approach and the Rayleigh-Ritz method are utilized to obtain the nonlinear frequencies, mode shapes, and resonant responses of the structure subjected to different excitation amplitudes. Therein, the equivalent material parameters of the core part are determined using the modified cross and fill equivalent principle, and the nonlinear elastic modulus with amplitude-dependent fitting coefficients of the skins and core are assumed by the Jones-Nelson nonlinear theory, and those coefficients are determined by using an inverse parameter identification and fitting technique based on experimental test data. Then, the validation work on the developed model is performed by comparing the calculated results of the model with those of the tests. Finally, the impacts of several critical parameters on the nonlinear dynamic behaviors of the structure are estimated, with some suggestions in favor of reducing the nonlinear resonant responses of FFCLC-FCCSs being clarified.

show abstract

“…The finite element analysis is performed using Model-III with the same boundary conditions, and the thickness ratio between the inner and outer structures is varied within the range [0.6, 1.6] to maintain the constant total mass of the footpad structure at 2.5 kg. (8) t ineer = 0.71 + n, t outer = 0.71 − S inner S outer × n, r = t ineer t outer ∈ [0.6, 1.6],…”

Section: Influence Of Thickness Parametersmentioning

confidence: 99%

“…At present, there are numerous types of energy absorption structures, and the energy dissipation mechanisms for these structures are diverse. Aluminum honeycomb, the most representative and widely used energy absorption structure, has excellent energy dissipation performance due to its high strength-to-weight ratio [6][7][8][9]. Remarkably, it has been successfully used in the United States' Apollo 11, which is also known as the first crewed mission to land on the moon.…”

Section: Introductionmentioning

confidence: 99%

A Footpad Structure with Reusable Energy Absorption Capability for Deep Space Exploration Lander: Design and Analysis

Dou,

Qiu,

Xiong

et al. 2023

Chin. J. Mech. Eng.

View full text Add to dashboard Cite

The footpad structure of a deep space exploration lander is a critical system that makes the initial contact with the ground, and thereby plays a crucial role in determining the stability and energy absorption characteristics during the impact process. The conventional footpad is typically designed with an aluminum honeycomb structure that dissipates energy through plastic deformation. Nevertheless, its effectiveness in providing cushioning and energy absorption becomes significantly compromised when the structure is crushed, rendering it unusable for reusable landers in the future. This study presents a methodology for designing and evaluating structural energy absorption systems incorporating recoverable strain constraints of shape memory alloys (SMA). The topological configuration of the energy absorbing structure is derived using an equivalent static load method (ESL), and three lightweight footpad designs featuring honeycomb-like Ni-Ti shape memory alloys structures and having variable stiffness skins are proposed. To verify the accuracy of the numerical modelling, a honeycomb-like structure subjected to compression load is modeled and then compared with experimental results. Moreover, the influence of the configurations and thickness distribution of the proposed structures on their energy absorption performance is comprehensively evaluated using finite element simulations. The results demonstrate that the proposed design approach effectively regulates the strain threshold to maintain the SMA within the constraint of maximum recoverable strain, resulting in a structural energy absorption capacity of 362 J/kg with a crushing force efficiency greater than 63%.

show abstract

Amplitude-dependent damping characteristics of all-composite sandwich plates with a foam-filled hexagon honeycomb core

Cited by 68 publications

References 43 publications

Aluminium Matrix Composite Materials Reinforced by 3D-Printed Ceramic Preforms

Aluminium Matrix Composite Materials Reinforced by 3D-Printed Ceramic Preforms

Nonlinear dynamic modeling and experimental study of full-composite cylindrical shells with a foam-filled cavity lattice core

A Footpad Structure with Reusable Energy Absorption Capability for Deep Space Exploration Lander: Design and Analysis

Contact Info

Product

Resources

About