Journal of Multiscale Modelling最新文献_第6页

Reactive Additive Manufacturing Simulation of Thermoset Nano Graphene Inclusion 热固性纳米石墨烯包合物的反应增材制造模拟

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-09-01 DOI: 10.1142/s1756973720500043

F. Abdi, H. Baid, N. Moazami, J. Batten, Dade Huang, Amirhossein Eftekharian, R. Hajiha, K. Nikbin

引用次数: 2

Analytical Study for Fractional Order Mathematical Model of Concentration of Ca2+ in Astrocytes Cell with a Composite Fractional Derivative 星形胶质细胞Ca2+浓度分数阶数学模型的复合分数阶导数分析研究

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-09-01 DOI: 10.1142/s1756973720500055

Vinod Gill, Yudhveer Singh, Devendra Kumar, Jagdev Singh

引用次数: 5

Design and Analysis of Composite Window Frame for a Regional Aircraft 某支线飞机复合材料窗框的设计与分析

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-08-24 DOI: 10.1142/s1756973720500067

J. A. Lopes, O. Bacarreza, Z. S. Khodaei

引用次数: 0

Elucidating the Effect of Bimodal Grain Size Distribution on Plasticity and Fracture Behavior of Polycrystalline Materials 双峰型晶粒尺寸分布对多晶材料塑性和断裂行为的影响

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-08-24 DOI: 10.1142/s1756973720500079

F. Barbe, I. Benedetti, V. Gulizzi, M. Calvat, C. Keller

{"title":"Elucidating the Effect of Bimodal Grain Size Distribution on Plasticity and Fracture Behavior of Polycrystalline Materials","authors":"F. Barbe, I. Benedetti, V. Gulizzi, M. Calvat, C. Keller","doi":"10.1142/s1756973720500079","DOIUrl":"https://doi.org/10.1142/s1756973720500079","url":null,"abstract":"The refinement of grains in a polycrystalline material leads to an increase in strength but as a counterpart to a decrease in elongation to fracture. Different routes are proposed in the literature to try to overpass this strength-ductility dilemma, based on the combination of grains with highly contrasted sizes. In the simplest concept, coarse grains are used to provide relaxation locations for the highly stressed fine grains. In this work, a model bimodal polycrystalline system with a single coarse grain embedded in a matrix of fine grains is considered. Numerical full-field micro-mechanical analyses are performed to characterize the impact of this coarse grain on the stress-strain constitutive behavior of the polycrystal: the effect on plasticity is assessed by means of crystal plasticity finite element modeling [B. Flipon, C. Keller, L. Garcia de la Cruz, E. Hug and F. Barbe, Tensile properties of spark plasma sintered AISI 316L stainless steel with unimodal and bimodal grain size distributions, Mater. Sci. Eng. A 729 (2018) 248–256] while the effect on intergranular fracture behavior is studied by using boundary element modeling [I. Benedetti and V. Gulizzi, A grain-scale model for high-cycle fatigue degradation in polycrystalline materials, Int. J. Fract. 116 (2018) 90–105]. The analysis of the computational results, compared to the experimentally characterized tensile properties of a bimodal 316L stainless steel, suggests that the elasto-plastic interactions taking place prior to micro-cracking may play an important role in the mechanics of fracture of this steel.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2020-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41999656","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: 2

Approximation of Calcium Diffusion in Alzheimeric Cell 钙在阿尔茨海默氏症细胞中扩散的近似

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-06-01 DOI: 10.1142/s1756973720500018

B. Jha, Devanshi D. Dave

引用次数: 8

Influence of Moving Heat Source on Skin Tissue in the Context of Two-Temperature Caputo–Fabrizio Heat Transport Law 基于双温卡普托-法布里齐奥热传递定律的移动热源对皮肤组织的影响

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-06-01 DOI: 10.1142/s175697372050002x

A. Sur, S. Mondal, M. Kanoria

引用次数: 20

Study on the Effect of Doping on Lattice Constant and Electronic Structure of Bulk AuCu by the Density Functional Theory 用密度泛函理论研究掺杂对块状AuCu晶格常数和电子结构的影响

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-06-01 DOI: 10.1142/s1756973720300014

Dung Nguyen-Trong, Cuong Nguyen-Chinh, Van Duong-Quoc

引用次数: 20

Refinement of the Maxwell Formula for Fiber-Reinforced Composites 纤维增强复合材料麦克斯韦公式的改进

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-03-01 DOI: 10.1142/S175697371950001X

A. Kalamkarov, I. Andrianov, G. Starushenko

{"title":"Refinement of the Maxwell Formula for Fiber-Reinforced Composites","authors":"A. Kalamkarov, I. Andrianov, G. Starushenko","doi":"10.1142/S175697371950001X","DOIUrl":"https://doi.org/10.1142/S175697371950001X","url":null,"abstract":"The effective properties of the fiber-reinforced composite materials with fibers of square cross-section are investigated. The novel formula for the effective coefficient of thermal conductivity refining the classical Maxwell formula (MF) is derived. The methods of asymptotic homogenization, boundary shape perturbation and Schwarz alternating process are applied. It is shown that the principal term of the asymptotic expansion of the refined formula in powers of small size of inclusions coincides with the classical MF. The corrections to the MF are obtained for different values of geometrical and physical properties of the constituents of the composite material. The analytical and numerical analyses are carried out and illustrated graphically. In particular, the derived refined formula and the MF are compared for the limiting values of the geometric dimensions and physical properties of the composite. It is shown that the refined formula is applicable for the inclusions with any conductivity in the entire range of the geometric sizes of inclusions, including the limiting cases of inclusions with zero thermal conductivity and maximally large inclusions.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1142/S175697371950001X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44994788","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: 2

Modeling of Cementitious Representative Volume Element with Various Water–Cement Ratios 不同水灰比下胶凝体代表性体积元的建模

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-03-01 DOI: 10.1142/S1756973719500021

M. Shahzamanian, W. Basirun

引用次数: 2

Accelerator-Based Methods in Radio-Material 99Mo/99mTc Production Alternatives by Monte Carlo Method: The Scientific-Expedient Considerations in Nuclear Medicine 基于加速器的蒙特卡罗方法在放射性材料99Mo/999mTc生产替代品中的应用：核医学中的科学便利性考虑

IF 1.5

Journal of Multiscale Modelling Pub Date : 2020-03-01 DOI: 10.1142/S1756973719300016

A. Khorshidi

{"title":"Accelerator-Based Methods in Radio-Material 99Mo/99mTc Production Alternatives by Monte Carlo Method: The Scientific-Expedient Considerations in Nuclear Medicine","authors":"A. Khorshidi","doi":"10.1142/S1756973719300016","DOIUrl":"https://doi.org/10.1142/S1756973719300016","url":null,"abstract":"Some accelerator technologies are already used for commercial [Formula: see text]Mo-99mTc production, as the economic criteria are considered representative of the main differences between diverse technologies including accelerators and reactors. This study has provided a review of known and potential [Formula: see text]Mo production using conventional medical facilities. Accelerator-based method in 99mTc production via ([Formula: see text], [Formula: see text]) direct reaction on [Formula: see text]Mo was simulated using 18[Formula: see text]MeV proton beam. Meanwhile, a conceptual design for indirect [Formula: see text]Mo production via [Formula: see text]Mo([Formula: see text])[Formula: see text]Mo and [Formula: see text]Mo(n,[Formula: see text]2n)[Formula: see text]Mo reactions was investigated when an electron source of 35[Formula: see text]MeV by accelerator is used. These indirect reactions were explored via inserted [Formula: see text]Mo samples at different positions inside the lead region. Furthermore, Adiabatic Resonance Crossing (ARC) method based on proton accelerator via transmutation in [Formula: see text]Mo([Formula: see text]Mo was examined when the 30[Formula: see text]MeV proton beam is used. Saturation activity and yield were investigated using alternative proposed methods. The potential proliferation risk associated with accelerator technetium production is minimal. While accelerators could be turned into neutron sources which could in turn be used to irradiate [Formula: see text]U to breed plutonium, and centrifuges used to enrich [Formula: see text]Mo for targets could conceivably be turned to enriching uranium, this would result in very tiny global production capability particularly compared with research or power reactors. The potential of the fresh methods could provide a replacement or complement over current reactor-based supply sources in various radioisotopes production purposes.","PeriodicalId":43242,"journal":{"name":"Journal of Multiscale Modelling","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1142/S1756973719300016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48205182","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: 18