Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems最新文献_第3页

Progressive use of nanocomposite hydrogels materials for regeneration of damaged cartilage and their tribological mechanical properties 纳米复合水凝胶材料在损伤软骨再生中的应用及其摩擦学力学性能

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2023-02-01 DOI: 10.1177/23977914231151487

P. Sagar, G. Kumar, A. Handa

{"title":"Progressive use of nanocomposite hydrogels materials for regeneration of damaged cartilage and their tribological mechanical properties","authors":"P. Sagar, G. Kumar, A. Handa","doi":"10.1177/23977914231151487","DOIUrl":"https://doi.org/10.1177/23977914231151487","url":null,"abstract":"Osteoarthritis (OA) is a non-inflammatory deteriorating debilitating state that bring about remarkable health and economic issues globally. Break down/deterioration of the articular cartilage (AC) is one of the pathologic characteristics of osteoarthritis (OA). Nanocomposite hydrogels (NCH) materials are evolving as a potential class of scaffolds for organ regeneration and tissue engineering. In recent years, innovative hydrogels specifically loaded with nanoparticles have been developed and synthesized with the goal of changing conventional cartilage treatments. The detailed development of a tailored nanocomposite hydrogels (NCH) material utilized for tissue engineering is presented in this review study. Also, the mechanical characteristics, particularly the tribological behavior, of these produced NCH have been highlighted. Large amounts of research and data on the hydrogel substance utilized in cartilage healing are summarized in the current review study. When determining future research gaps in the area of hydrogels for cartilage regeneration, such information will provide researchers an advantage to further develop NCH.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"22 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75970433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibration of nonlocal strain gradient functionally graded nonlinear nanobeams using a novel locally adaptive strong quadrature element method 基于局部自适应强正交元法的非局部应变梯度功能梯度非线性纳米梁振动研究

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-11-21 DOI: 10.1177/23977914221129426

M. Trabelssi, S. El-Borgi

{"title":"Vibration of nonlocal strain gradient functionally graded nonlinear nanobeams using a novel locally adaptive strong quadrature element method","authors":"M. Trabelssi, S. El-Borgi","doi":"10.1177/23977914221129426","DOIUrl":"https://doi.org/10.1177/23977914221129426","url":null,"abstract":"The primary objective of this paper is to propose a novel method to derive Differential Quadrature Method matrices with several degrees of freedom at the boundaries that can be used to build Strong Quadrature Elements to solve fourth and higher-order equations of motion. The proposed method, referred to as Locally adaptive Strong Quadrature Element Method, is applied to higher-order equations of motion for nonlinear graded Timoshenko and Euler-Bernoulli nanobeams formulated using the Second Strain Gradient Theory or the Nonlocal Strain Gradient Theory. To limit the formulation complexity, the proposed approach is based on the regular formulation of the differential quadrature method combined with custom-built transfer matrices. Moreover, it does not require a different formulation for fourth and sixth-order equations and can be extended beyond sixth-order equations. Validation was carried out using examples from the literature as well as data obtained using the classical Locally adaptive Quadrature Element Method. Both linear and nonlinear frequencies were evaluated for a large number of configurations and boundary conditions. The proposed approach resulted in good accuracy and a convergence speed comparable to the conventional Locally adaptive Quadrature Element Method.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"360 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2022-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80220670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In situ- preparation and estimation of the physical characterization of Nanofluidic solution and its application 纳米流体溶液的原位制备、物理特性评价及其应用

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-11-01 DOI: 10.1177/23977914221127527

Ameen Abdelrahman, F. Erchiqui, Mourd Nedil, Siaj Mohamed

引用次数: 0

Stability and sedimentation characteristics of water based Al2O3 and TiO2 nanofluids 水基Al2O3和TiO2纳米流体的稳定性和沉降特性

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-10-07 DOI: 10.1177/23977914221127735

S. Mukherjee, Shanta Chakrabarty, P. Mishra, P. Chaudhuri

{"title":"Stability and sedimentation characteristics of water based Al2O3 and TiO2 nanofluids","authors":"S. Mukherjee, Shanta Chakrabarty, P. Mishra, P. Chaudhuri","doi":"10.1177/23977914221127735","DOIUrl":"https://doi.org/10.1177/23977914221127735","url":null,"abstract":"Nanofluids are regarded as promising heat transfer fluid due to their ultrafast cooling capability. However, stability analysis of nanofluids is very critical before its application in heat transfer .The present paper reports about an investigation on the stability of water-based Al2O3 and TiO2 nanofluids at ambient temperature. Nanoparticles, namely Al2O3 and TiO2 at different concentrations of 1, 0.5, 0.1, 0.05, and 0.01 wt.% respectively were directly dispersed in water without adding any dispersant and placed in a static container to observe gravitation settling. Change of sedimentation height with respect to time was measured using the sedimentation photograph capturing method. DLS (Dynamic Light Scattering) and zeta potential analysis were also executed to examine the stability of nanofluids. The results show that the visualization method, DLS and zeta potential analysis are in good correspondence to each other. Sedimentation velocity increases with an increase in nanoparticle concentration and aging. Brownian motion of nanoparticles resist the sedimentation in nanofluids. It is observed that TiO2nanofluid is more stable as compared to Al2O3 nanofluid due to its smaller particle size. Finally authors recommend smaller particle size, optimized sonication time, low nanoparticle concentration and use of surfactant to obtain better dispersion stability of nanofluids","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"118 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77437314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Mechanical optimization of an Al-Al2O3 composite nanowire via molecular dynamics simulation and metaheuristic optimization 基于分子动力学模拟和元启发式优化的Al-Al2O3复合纳米线力学优化

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-10-03 DOI: 10.1177/23977914221127733

Mohammad Pakray, Sajad Hayati, S. K. Jalali

{"title":"Mechanical optimization of an Al-Al2O3 composite nanowire via molecular dynamics simulation and metaheuristic optimization","authors":"Mohammad Pakray, Sajad Hayati, S. K. Jalali","doi":"10.1177/23977914221127733","DOIUrl":"https://doi.org/10.1177/23977914221127733","url":null,"abstract":"In the present study, mechanical properties optimization is investigated for an Al-Al2O3 composite nanostructure. The Al-Al2O3 composite nanostructure is considered an Aluminum nanowire reinforced by spherical Al2O3 particles. The structure tensile test is simulated via molecular dynamics simulation using LAMMPS. The mechanical properties of the composite are extracted from the obtained stress-strain curve of the composite. The important mechanical properties include maximum stress and toughness. An optimization process is then applied to maximize the mechanical properties of the composite via metaheuristic optimization algorithms including Genetic Algorithm (GA), Ant Colony (ACO), and Grey Wolf Optimizer (GWO). Since the studied nanostructure is mono crystal, the reinforcing mechanism differs from that of a grained macro material. Therefore, the optimization variables are not confined to size and volume fraction but they also include the location of the particles. The optimization is performed for 0.05 and 0.10 volume fractions and different particle sizes with respect to the location of particles. Applying the optimization process, the mechanical properties of the studied composite nanowire are substantially improved for tensile loading. The results reveal that the placement of the particles has a considerable effect on the improvement of mechanical characteristics. At last, a pattern is presented for the placement of particles to achieve the highest tensile characteristics of Al-Al2O3 composite nanowires.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"38 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80662098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of FE method in predicting the properties of nanocomposites 有限元法在预测纳米复合材料性能中的应用

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-09-30 DOI: 10.1177/23977914221127528

M. Motamedi, M. Ramezani

引用次数: 0

Preface to the Special Issue on the 29th Annual International Conference of the Iranian Society of Mechanical Engineers (ISME2021) 第29届伊朗机械工程师学会国际年会(ISME2021)特刊前言

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-09-01 DOI: 10.1177/23977914221098616

M. Eslami, E. Ghavanloo, Y. Kiani

{"title":"Preface to the Special Issue on the 29th Annual International Conference of the Iranian Society of Mechanical Engineers (ISME2021)","authors":"M. Eslami, E. Ghavanloo, Y. Kiani","doi":"10.1177/23977914221098616","DOIUrl":"https://doi.org/10.1177/23977914221098616","url":null,"abstract":"In this Special Issue, some selected and extended contributions, which were presented at the 29th Annual International Conference of the Iranian Society of Mechanical Engineers (ISME), held in Tehran, Iran in May 2021, are collected. Ever since the first conference in 1992, ISME conferences have been a big scientific festivity for mechanical community in Iran. The ISME conference covers a wide range of mechanical fields in science and technology and aims to bring together various engineering mechanics expertise. The ISME2021 organizers decided to bring out papers presented at the conference in the field of microand nano-mechanics as a special issue of Journal of Nanomaterials, Nanoengineering and Nanosystems. This Special Issue contains four papers and each paper has undergone a rigorous review process. In the following, the articles are briefly introduced. In one of the papers, the static behaviors of functionally graded arbitrary straight-sided quadrilateral nanoplates have been investigated on the basis of a continuum mechanics-based surface elastic model. Mechanical response of polyester based composites filled with carbon black has been studied by experimental and micromechanical methods in another paper. The influence of shear deformation on wave propagation in periodic lattices with various topologies has been examined in one of the selected papers. Finally, a novel nanocomposite bone scaffold has been fabricated and its mechanical properties have been studied by using experimental techniques and finite element method. It is hoped that readers will find the special issue interesting. We would like to thank the authors for submitting their valuable works to the Special Issue, and the anonymous reviewers for their time, effort, and professional comments in evaluating the papers. In addition, our special thanks to the editor-in-chief of the journal, Prof. Vasileios Koutsos, for his excellent cooperation.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"33 1","pages":"67 - 67"},"PeriodicalIF":6.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76228986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Micropolar nanofluid overlying a porous layer: Thermosolutal convection 覆盖在多孔层上的微极性纳米流体:热溶质对流

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-08-09 DOI: 10.1177/23977914221117030

J. Umavathi

引用次数: 1

Density functional theory study of dissociative adsorption of H2 molecules on NiTi (001) surfaces H2分子在NiTi(001)表面解离吸附的密度泛函理论研究

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-07-18 DOI: 10.1177/23977914221114557

R. Arifin, A. Selamat, R. Asih, Darminto, M. Malyadi, W. Putra

{"title":"Density functional theory study of dissociative adsorption of H2 molecules on NiTi (001) surfaces","authors":"R. Arifin, A. Selamat, R. Asih, Darminto, M. Malyadi, W. Putra","doi":"10.1177/23977914221114557","DOIUrl":"https://doi.org/10.1177/23977914221114557","url":null,"abstract":"Ti-based alloys have the potential to be used as hydrogen storage units, including NiTi. In contrast, NiTi alloy is sensitive to H atoms. It has been found that hydrogen can cause embrittlement in NiTi alloys. Thus, it is become indispensable to elucidate the reaction of H2 molecules on the NiTi surface. Using density functional theory, we investigated the dissociation mechanism of H2 molecules on the B2 NiTi (001) surface. We found that H atoms tend to come closer to Ni atoms on the Ti- and Ni-terminated (NiTi) (001) substrate. The calculation results showed that the adsorption energy of H atoms at the hollow site was higher than that at the top site. We identified two dissociation mechanisms of H2 molecules on Ti and Ni terminated on NiTi (001) substrates via the hollow sites of the adsorption route. The adsorption energy values obtained were extremely low, that is, 0.23 and 0.38 eV for the Ni and Ti terminated of NiTi (001) substrates, respectively. The dissociation reaction of H2 molecules, which is an exothermic reaction, can quickly occur on the NiTi (001) surface because of the low activation energy.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"49 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88074724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Impact of asymmetric zeta-potential on natural convection flow in a vertical microannulus with electroosmotic and Joule heating effects 不对称ζ势对具有电渗透和焦耳热效应的垂直微环内自然对流的影响

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Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems Pub Date : 2022-06-10 DOI: 10.1177/23977914221103995

M. Oni, B. Jha

引用次数: 1