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Data Mining for Mesoscopic Simulation of Electron Beam Selective Melting Article

Ya Qian, Wentao Yan, Feng Lin

Engineering 2019, Volume 5, Issue 4, Pages 746-754 doi: 10.1016/j.eng.2019.06.006

Abstract: The mesoscopic modeling technique was recently introduced as a means of simulating the electron beamThis paper investigates the morphological features of the melt track from the results of mesoscopic simulationFinally, a simulation-driven optimization framework consisting of mesoscopic modeling and data mining

Keywords： Electron beam selective melting Mesoscopic modeling Data mining

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Modeling of alkali-silica reaction in concrete: a review

J.W. PAN, Y.T. FENG, J.T. WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1, Pages 1-18 doi: 10.1007/s11709-012-0141-2

Abstract: This paper presents a comprehensive review of modeling of alkali-silica reaction (ASR) in concrete.Such modeling is essential for investigating the chemical expansion mechanism and the subsequent influenceThe modeling includes theoretical approaches, meso- and macroscopic models for ASR analysis.Mesoscopic models have attempted to explain the mechanism of mechanical deterioration of ASR-affectedFinally, a conclusion and discussion of the modeling are given.

Keywords： alkali-silica reaction (ASR) modeling concrete mesoscopic macroscopic

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Mesoscopic Modeling Approach and Application for Steel Fiber Reinforced Concrete under Dynamic Loading Review

张锦华, 吴彰钰, 余红发, 麻海燕, 达波

Engineering 2022, Volume 16, Issue 9, Pages 220-238 doi: 10.1016/j.eng.2022.01.011

Abstract: of steel fibers in matrix and further capture the failure mechanism of SFRC under dynamic loads, the mesoscopicmodeling approach that assumes SFRC to be composed of different mesoscale phases (i.e., steel fibersThis paper presents a comprehensive review of the state-of-the-art mesoscopic models and simulationsFinally, some critical analysis on the current shortcomings of the mesoscale modeling of SFRC is

Keywords： Steel fiber reinforced concrete Mesoscale modeling Dynamic loading Materials model Interfacial characteristic

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bottleneck of phosphonic acid anchoring groups aiming toward enhancing the stability and efficiency of mesoscopic

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7, Pages 1060-1078 doi: 10.1007/s11705-021-2117-z

Abstract: Novel near-infrared sensitizers with different anchoring groups aiming toward improved stability and efficiency of dye-sensitized solar cells were synthesized. Adsorption of these dyes on the mesoporous TiO₂ surface revealed the dye adsorption rate of –CH=CH–COOH (SQ-139)>–CH=C(CN)COOH (SQ-140)>–PO₃H₂ (SQ-143)>–CH=C(CN)PO₃H₂ (SQ-148)>–CH=C(CN)PO₃H–C₂H₅ (SQ-157)>–PO₃H–C₂H₅ (SQ-151)>–CH=CH–COOH(–PO₃H₂) (SQ-162). The binding strength of these dyes on mesoporous TiO₂ as investigated by dye desorption studies follows SQ-162>SQ-143>SQ-148>SQ-139>SQ-157~SQ-151>SQ-140 order. The acrylic acid anchoring group was demonstrated to be an optimum functional group owing to its fast dye adsorption rate and better binding strength on TiO₂ along with good photoconversion efficiency. Results of dye binding on TiO₂ surface demonstrated that SQ-162 bearing double anchoring groups of phosphonic and acrylic acid exhibited>550 times stronger binding as compared to dye SQ-140 having cyanoacrylic acid anchoring group. SQ-140 exhibited the best photovoltaic performance with photon harvesting mainly in the far-red to near-infrared wavelength region having short circuit current density, open-circuit voltage and fill factor of 14.28 mA·cm^–2, 0.64 V and 0.65, respectively, giving the power conversion efficiency of 5.95%. Thus, dye SQ-162 not only solved the problem of very poor efficiency of dye bearing only phosphonic acid while maintaining the extremely high binding strength opening the path for the design and development of novel near-infrared dyes with improved efficiency and stability by further increasing the π-conjugation.

Keywords： anchoring groups adsorption behaviour dye-binding strength squaraine dyes dye-sensitized solar cells

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Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Frontiers in Energy 2021, Volume 15, Issue 2, Pages 460-472 doi: 10.1007/s11708-021-0733-4

Abstract: This work studies the effect of CCL mesoscopic pore-morphology on PEMFC cold start.

Keywords： cold start energy conversion fuel cells mesoscale morphology tortuosity water management

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Numerical simulation of damage in high arch dam due to earthquake

Hong ZHONG , Gao LIN , Hongjun LI

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3, Pages 316-322 doi: 10.1007/s11709-009-0039-9

Abstract: Based on the assumption that concrete is macroscopic homogeneous, the cracking evolution process and damage mode of high arch dams are studied in consideration of the heterogeneity of concrete in mesoscale. The bilinear damage evolution model and the damage evolution model expressed in power function with descending section are adopted to combine with the Mohr-Coulomb criterion to investigate the crack development and fracture mode of high arch dams under the action of an earthquake. The analysis result of a high arch dam in China under design shows that cracks that take place in concrete are caused by excessive tensile stress. The cracks initiate at the middle of the dam top and distribute at the upper half of the dam while the rest of the parts remain intact. This conclusion agrees with the model test result.

Keywords： mesoscopic heterogeneity damage simulation in earthquakes arch dam

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Mesoscopic properties of dense granular materials: An overview

Qicheng SUN, Feng JIN, Guohua ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1, Pages 1-12 doi: 10.1007/s11709-013-0184-z

Abstract: A granular material is a conglomeration of discrete solid particles. It is intrinsically athermal because its dynamics always occur far from equilibrium. In highly excited gaseous states, it can safely be assumed that only binary interactions occur and a number of kinetic theories have been successfully applied. However, for granular flows and solid-like states, the theory is still poorly understood because of the internally correlated structures, such as particle clusters and force networks. The current theory is that the mesoscale characteristics define the key differences between granular materials and homogeneous solid materials. Widespread interest in granular materials has arisen among physicists, and significant progress has been made, especially in understanding the jamming phase diagram and the characteristics of the jammed phase. In this paper, the underlying physics of the mesoscale structure is discussed in detail. A multiscale framework is then proposed for dense granular materials.

Keywords： granular matter macroscopic structure jamming phase transition

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Three-Dimensional Mesoscopic Investigation on the Impact of Specimen Geometry and Bearing Strip Size Article

Zhangyu Wu, Jinhua Zhang, Hongfa Yu, Qin Fang, Haiyan Ma, Li Chen

Engineering 2022, Volume 17, Issue 10, Pages 110-122 doi: 10.1016/j.eng.2021.02.024

Abstract: of two factors, namely specimen geometry and bearing strip size, a three-dimensional (3D) mesoscale modelingThe results indicate the high reliability of the developed mesoscale modeling approach and reveal the

Keywords： Coral aggregate concrete 3D mesoscopic modelling Split-tension test Tensile strength Specimen geometry

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Selective Laser Melting under Variable Ambient Pressure: A Mesoscopic Model and Transport Phenomena Article

Renzhi Hu, Manlelan Luo, Anguo Huang, Jiamin Wu, Qingsong Wei, Shifeng Wen, Lichao Zhang, Yusheng Shi, Dmitry Trushnikov, V. Ya. Belenkiy, I. Yu. Letyagin, K.P. Karunakaran, Shengyong Pang

Engineering 2021, Volume 7, Issue 8, Pages 1157-1164 doi: 10.1016/j.eng.2021.07.003

Abstract: Herein, we first developed a mesoscopic model of SLM under variable ambient pressure based on our recent

Keywords： Selective laser melting Mesoscopic model Ambient pressure Transport phenomena

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Continuous modeling of soil morphology —thermomechanical behavior of embankment dams

Bettina ALBERS, Krzysztof WILMANSKI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1, Pages 11-23 doi: 10.1007/s11709-010-0081-7

Abstract: Macroscopic modeling of soils is based on a number of properties that refer to the mesoscopic morphologyIn particular, the above mentioned features, especially saturation with water and seepage problems, modeling

Keywords： thermomechanical modeling soil morphology saturation porosity

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Flow and thermal modeling of liquid metal in expanded microchannel heat sink

Frontiers in Energy Pages 796-810 doi: 10.1007/s11708-023-0877-5

Abstract: The flow and thermal modeling of expanded microchannel heat sink (E-MCHS) were analyzed by both using

Keywords： liquid metal cooling heat sink expanded microchannel flow and thermal modeling

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A framework for an integrated unified modeling language

Mohammad ALSHAYEB,Nasser KHASHAN,Sajjad MAHMOOD

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 2, Pages 143-159 doi: 10.1631/FITEE.1500094

Abstract:

The unified modeling language (UML) is one of the most commonly used modeling languages in the softwareframework for integrating the UML extensions and then use the framework to propose an integrated unified modelingThe proposed iUML-g is capable of modeling systems that use different domains.

Keywords： Unified modeling language (UML) Integration Modeling System analysis and design

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Computer modeling of crystal growth of silicon for solar cells

Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO

Frontiers in Energy 2011, Volume 5, Issue 3, Pages 305-312 doi: 10.1007/s11708-011-0155-9

Abstract: The findings show the importance of computer modeling as an effective tool in the analysis and improvement

Keywords： computer modeling silicon crystal growth solar cells

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Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 326-331 doi: 10.1007/s11465-009-0045-6

Abstract: The local interaction simulation approach, used for modeling sharp interfaces and discontinuities inThis modeling is based on the local interaction simulation approach theory and is finally accomplishedFinally, the Lamb waves propagation modeling is implemented.

Keywords： Lamb wave modeling LISA/SIM theory finite difference equation finite element

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Building information modeling and its impact on users in the lifeworld: A mediation perspective

Hans VOORDIJK

Frontiers of Engineering Management 2019, Volume 6, Issue 2, Pages 193-206 doi: 10.1007/s42524-019-0013-8

Abstract: Building information modeling (BIM) is expected to have a large impact on users in the lifeworlds in

Keywords： building information modeling mediation enframing lifeworld rationalization Heidegger Habermas Ihde

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Title Author Date Type Operation

Data Mining for Mesoscopic Simulation of Electron Beam Selective Melting

Ya Qian, Wentao Yan, Feng Lin

Journal Article

Modeling of alkali-silica reaction in concrete: a review

J.W. PAN, Y.T. FENG, J.T. WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN

Journal Article

Mesoscopic Modeling Approach and Application for Steel Fiber Reinforced Concrete under Dynamic Loading

张锦华, 吴彰钰, 余红发, 麻海燕, 达波

Journal Article

bottleneck of phosphonic acid anchoring groups aiming toward enhancing the stability and efficiency of mesoscopic

Journal Article

Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Journal Article

Numerical simulation of damage in high arch dam due to earthquake

Hong ZHONG , Gao LIN , Hongjun LI

Journal Article

Mesoscopic properties of dense granular materials: An overview

Qicheng SUN, Feng JIN, Guohua ZHANG

Journal Article

Three-Dimensional Mesoscopic Investigation on the Impact of Specimen Geometry and Bearing Strip Size

Zhangyu Wu, Jinhua Zhang, Hongfa Yu, Qin Fang, Haiyan Ma, Li Chen

Journal Article

Selective Laser Melting under Variable Ambient Pressure: A Mesoscopic Model and Transport Phenomena

Renzhi Hu, Manlelan Luo, Anguo Huang, Jiamin Wu, Qingsong Wei, Shifeng Wen, Lichao Zhang, Yusheng Shi, Dmitry Trushnikov, V. Ya. Belenkiy, I. Yu. Letyagin, K.P. Karunakaran, Shengyong Pang

Journal Article

Continuous modeling of soil morphology —thermomechanical behavior of embankment dams

Bettina ALBERS, Krzysztof WILMANSKI

Journal Article

Flow and thermal modeling of liquid metal in expanded microchannel heat sink

Journal Article

A framework for an integrated unified modeling language

Mohammad ALSHAYEB,Nasser KHASHAN,Sajjad MAHMOOD

Journal Article

Computer modeling of crystal growth of silicon for solar cells

Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO

Journal Article