Mechanics Research Communications最新文献_第3页

Transient torsional wave propagation in finite and infinite multilayered pipes

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104361

Chuanwen Chen , Yang Xiang , Lei Qin , Liguo Tang , Wenyu Luo

引用次数: 0

Solute dispersion in fluids with pressure-dependent viscosity

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104352

Igor Pažanin

引用次数: 0

Attenuation effects of seismic metamaterials based on local resonance and Rayleigh wave dispersion phenomena

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104367

Hongyang Sun , Hong Hai , Chunli Zhou , Wei Wang , Chenfeng Chen , Weikai Xu

{"title":"Attenuation effects of seismic metamaterials based on local resonance and Rayleigh wave dispersion phenomena","authors":"Hongyang Sun , Hong Hai , Chunli Zhou , Wei Wang , Chenfeng Chen , Weikai Xu","doi":"10.1016/j.mechrescom.2024.104367","DOIUrl":"10.1016/j.mechrescom.2024.104367","url":null,"abstract":"<div><div>Locally resonant metamaterials have successfully addressed the challenges posed by Bragg scattering-type periodic structures in low-frequency applications, opening new avenues for the development of advanced seismic systems. However, the prevalent semi-embedded seismic metamaterials still face issues such as narrow attenuation band gaps and complex vibration modes. This paper introduces a novel type of seismic metamaterial (SM) composed of an external steel enclosure and an upper spiral beam resonator system. To avoid complex vibration modes, the upper structure is integrated into a single unit through a bottom steel plate, and its band gaps are calculated using dispersion analysis and acoustic cone methods to clarify the attenuation range of the seismic metamaterial. By parameter design, the designed seismic metamaterial can achieve wideband seismic wave attenuation from 2.68 Hz to 16 .34Hz. Moreover, the seismic metamaterial still exhibits attenuation effects even in the absence of resonators. This attributed to Rayleigh wave dispersion in a double-layer medium, which induces inverse dispersion, transforming Rayleigh waves into body waves and further enhancing the damping effect. Finally, time-domain analysis elucidated the dynamic response of the seismic metamaterial, substantiating the validity of the study. We hope this research can promote the engineering application of common building materials in the shielding of seismic waves at deep sub-wavelength frequencies.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"143 ","pages":"Article 104367"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wave propagation in uncertain laminated structure through stochastic wave finite element method

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104350

Raslen Nemer , Faker Bouchoucha , Henia Arfa , Mohamed Ichchou

{"title":"Wave propagation in uncertain laminated structure through stochastic wave finite element method","authors":"Raslen Nemer , Faker Bouchoucha , Henia Arfa , Mohamed Ichchou","doi":"10.1016/j.mechrescom.2024.104350","DOIUrl":"10.1016/j.mechrescom.2024.104350","url":null,"abstract":"<div><div>In this paper, the composite beam is modeled in the case of the laminated material for the bending vibration. An analytical formulation is offered and used to extract the stiffness and mass matrices which will be injected in the dynamical equilibrium of the structure in order to apply the Wave Finite Element (WFE) method and characterize the dispersion curves corresponding to the bending vibration in the laminated beam. In order to rigorously describe the uncertainties in the mechanical and geometric parameters, the probabilistic tools are used. The study of the uncertain parameters is offered through the Monte Carlo techniques which can be used as a reference for statistical methods. Our methodology consists on producing a Gaussian distribution of random variables and simulating several draws of the dispersion curves using the WFE method according to the modeling of the composite beam. The Monte Carlo simulations lead to the calculation of the mean and the standard deviation of the wave number. The stochastic analytical development is formulated and exploited to validate the WFE results through the determination of the statistics of the dispersion curves using Monte Carlo simulations and explicit formulas.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"143 ","pages":"Article 104350"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solving coupled differential eigenvalue problems using the differential transformation method numerical example: Dynamic analysis of multi-span beams

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104366

Amir Esmaeel Khosravi, Farzad Shahabian, Ahmad Aftabi Sani

{"title":"Solving coupled differential eigenvalue problems using the differential transformation method numerical example: Dynamic analysis of multi-span beams","authors":"Amir Esmaeel Khosravi, Farzad Shahabian, Ahmad Aftabi Sani","doi":"10.1016/j.mechrescom.2024.104366","DOIUrl":"10.1016/j.mechrescom.2024.104366","url":null,"abstract":"<div><div>This paper presents an innovative application of the Differential Transformation Method (DTM) for solving differential equations, specifically addressing coupled eigenvalue problems in structural engineering. For this purpose, the free vibration analysis problem of multi-span beams with the most general support conditions, including translational and rotational springs at the connection to the ground, is selected as a structural and coupled eigenvalue problem and is solved using the DTM. The process of solving the problem is thoroughly described, and the results obtained from the DTM are compared and verified with the results from other methods in reliable sources. This comparison demonstrates DTM's efficiency, accuracy, and potential as an alternative method. Numerical results, including frequency values, are tabulated, and mode shapes for various multi-span beams are illustrated. Furthermore, a comprehensive parametric study is conducted, examining the effects of different support types—clamped, simple, and free—on multi-span beams. The numerical results and comparisons demonstrate that DTM is an accurate and capable method for solving coupled eigenvalue problems, comparable to most other differential problem-solving method.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"143 ","pages":"Article 104366"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143127981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Piezoelectric flutter energy harvesting: Absolute nodal coordinate formulation model and wind tunnel experiment

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104351

Taisei Mukogawa , Kento Shimura , Shuonan Dong , Koji Fujita , Hiroki Nagai , Masaki Kameyama , Yu Shi , Yu Jia , Constantinos Soutis , Hiroki Kurita , Fumio Narita , Yushin Hara , Kanjuro Makihara , Keisuke Otsuka

{"title":"Piezoelectric flutter energy harvesting: Absolute nodal coordinate formulation model and wind tunnel experiment","authors":"Taisei Mukogawa , Kento Shimura , Shuonan Dong , Koji Fujita , Hiroki Nagai , Masaki Kameyama , Yu Shi , Yu Jia , Constantinos Soutis , Hiroki Kurita , Fumio Narita , Yushin Hara , Kanjuro Makihara , Keisuke Otsuka","doi":"10.1016/j.mechrescom.2024.104351","DOIUrl":"10.1016/j.mechrescom.2024.104351","url":null,"abstract":"<div><div>This study proposes a new flutter harvesting analysis framework based on an absolute nodal coordinate formulation (ANCF) model that includes a nonlinear finite element method, a three-dimensional unsteady vortex lattice method that considers nonlinearities, and a piezoelectric equation. Because conventional studies assumed no extensionality of the neutral axis, use of flutter harvester configurations was restricted. However, this framework using the ANCF model can be applied to different configurations (e.g., extensible harvesters with fixed-fixed boundaries or multibody harvesters). The feasibility of the proposed method was verified by conducting wind tunnel experiments. The frequencies, root mean square (RMS) displacements, and RMS voltages of the analysis and experiment were compared. The difference between experiment and analysis was 23% in terms of frequencies. One of the reasons for the difference was viscous drag. Although the results were not a perfect match, the introduction of a viscous drag model will be considered in future studies to enhance this framework.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"143 ","pages":"Article 104351"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy absorption and deformation of cellular structures with dovetail joints

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104353

Xu Shuang , Deng Qingtian , Li Xinbo , Zhou Jiabao , Wen Jinpeng , Yang Zhirong

{"title":"Energy absorption and deformation of cellular structures with dovetail joints","authors":"Xu Shuang , Deng Qingtian , Li Xinbo , Zhou Jiabao , Wen Jinpeng , Yang Zhirong","doi":"10.1016/j.mechrescom.2024.104353","DOIUrl":"10.1016/j.mechrescom.2024.104353","url":null,"abstract":"<div><div>In this paper, the dovetail joint is creatively applied to cellular structural plates. Based on the concave cellular structural dovetail joint plates, several new cellular structural dovetail joints with stable quality are designed by chamfering the joints and bending the rods. Tensile experiments of several dovetail jointed cellular structure plates are carried out to investigate the effects of the connection methods on energy absorption and deformation behavior. Finite element models are established and the finite element simulation results are compared with the experimental results for verification. By comparing the different dovetail connection methods, the results show that under axial tensile conditions, the dovetail-jointed cellular structures generally fail at the rod connections. The chamfering of the rod connection and the bending of the rod at the connection can significantly improve the model load-carrying capacity, and when the chamfering or the degree of rod bending is large, the energy-absorbing characteristics of the model can be significantly improved due to the increased stress and deformation of the model's horizontal rods.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"143 ","pages":"Article 104353"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Repercussions of quasi-isotropic behavior emerging in FGMs obtained via FAST/SPS

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2025-01-01 DOI: 10.1016/j.mechrescom.2024.104360

Hassan Mohamed Abdelalim Abdalla

{"title":"Repercussions of quasi-isotropic behavior emerging in FGMs obtained via FAST/SPS","authors":"Hassan Mohamed Abdelalim Abdalla","doi":"10.1016/j.mechrescom.2024.104360","DOIUrl":"10.1016/j.mechrescom.2024.104360","url":null,"abstract":"<div><div>The increasing use of functionally graded materials (FGMs) has propounded their careful consideration for high performance engineering applications. This interest has been largely nurturing challenging applications and prospects in various scientific and technological fields due to the increasing number of available fabrication processes. Among all, field assisted sintering technology (FAST), also known as spark plasma sintering (SPS), has been demonstrated as an efficient method for their throughput fabrication. In this regard, understanding the properties of these advanced sintered materials is critical to serve as the baseline for their development and optimization. Recently, a few peculiar experimental correlations of FGMs to their monolithic equivalents, when exclusively obtained by FAST/SPS, have been documented in the literature. In particular, a moderate anisotropic behavior of sintered samples is observed, though the existing gradient structure due to the spatial variation of volume fraction of reinforcing particles. This paper primarily aims to establish a theoretical criterion by taking advantage of the claimed moderate anisotropy of FGMs and provide a quantitative assessment tool for their effective elastic properties. Repercussions are stated, theoretically formulated, discussed and validated with reference to a set of experimental measures.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"143 ","pages":"Article 104360"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A homogenization scheme for viscoplastic composites based on the plane-wave decomposition of constitutive potentials 基于本构势平面波分解的粘塑性复合材料均匀化方案

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2024-12-01 DOI: 10.1016/j.mechrescom.2024.104349

Martín I. Idiart , Loïc Chaix , Pedro Ponte Castañeda

引用次数: 0

Designing multistable metamaterials inspired by Kresling tubes 受克雷斯林管启发设计多稳态超材料

IF 1.9 4区工程技术

Mechanics Research Communications Pub Date : 2024-11-14 DOI: 10.1016/j.mechrescom.2024.104348

Emilio Turco , Antonio Bilotta

引用次数: 0