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Robust topology optimization of multi-material lattice structures under material and load uncertainties

Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 141-152 doi: 10.1007/s11465-019-0531-4

Abstract: Enabled by advancements in multi-material additive manufacturing, lightweight lattice structures consistingThis work proposes a density-based robust topology optimization method for meso- or macro-scale multi-materiallattice structures under any combination of material and load uncertainties.The method utilizes a new generalized material interpolation scheme for an arbitrary number of materialsExamples of a cantilever beam lattice structure under various material and load uncertainty cases exhibit

Keywords: robust topology optimization     lattice structures     multi-material     material uncertainty     load uncertainty    

Digital high-efficiency print forming method and device for multi-material casting molds

Zhongde SHAN, Zhi GUO, Dong DU, Feng LIU, Wenjiang LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 328-337 doi: 10.1007/s11465-019-0574-6

Abstract: However, current sand mold 3D printing technology exhibits several problems, such as single-materialThis study proposes a novel high-efficiency print forming method and device for multi-material castingThe manufacture of multi-material casting molds is demonstrated on typical wheeled cast-iron parts.

Keywords: multi-material casting mold     3D printing     efficient print forming method    

Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods

Zheng-Dong MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 442-459 doi: 10.1007/s11465-018-0488-8

Abstract:

Macro-architectured cellular (MAC) material is defined as a class of engineered materials having configurablerelatively large (i.e., visible) size that can be architecturally designed to achieve various desired materialTwo types of novel MAC materials, negative Poisson’s ratio material and biomimetic tendon reinforcedmaterial, were introduced in this study.To estimate the effective material properties for structural analyses and to optimally design such materials

Keywords: architectured material     cellular materials     multi-scale modeling     homogenization method     effective material    

Application of coupled multi-body dynamics–discrete element method for optimization of particle damper

Danhui DAN, Qianqing WANG, Jiongxin GONG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 244-252 doi: 10.1007/s11709-021-0696-x

Abstract: In this paper, a coupled multi-body dynamics–discrete element method is proposed to simulate the dampingThe analyses are done by combining the discrete element method in EDEM and multi-body dynamics in ADAMS

Keywords: granular material     vibration control     discrete element method     particle damper     cable vibration    

Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy

Lei WANG, Jing LIU

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 317-332 doi: 10.1007/s11708-013-0271-9

Abstract: With many superior physical properties over conventional fluids, the low melting point liquid metal materialInspired by the Material Genome Initiative as issued in 2011 by the United States of America, a morespecific and focused project initiative was proposed in this paper—the liquid metal material genome aimedThe theoretical strategies and experimental methods in the research and development of liquid metal materialParticularly, the calculation of phase diagram (CALPHAD) approach as a highly effective way for material

Keywords: liquid metal material genome     energy material     material discovery     advanced material     room-temperature liquid    

Thoughts on Scientific Issues in Engineering Material Research

yuqiao

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 1-4

Abstract: Although some achievements have been accumulated in material research at home and abroad, deeper investigationsare still needed on a more precise model and state equation corresponding to the damage of a specific materialand the erosion of the space articles as well as the increase of the retreat value of the protection materialbelong to the response of materials to high speed collision.Electromagnetic materials such as radome material, infrared stealth material and EM shielding material are all EM functioning materials with EM wave of

Keywords: material for radome     wave absorbing material     infrared stealth material     EMC material    

Research Progress of Design Theory and Simulation of Composite Components

Tao Ran, He Chunwang, Luo Junrong, Mao Yiqi, Ma Lianhua

Strategic Study of CAE 2023, Volume 25, Issue 1,   Pages 121-130 doi: 10.15302/J-SSCAE-2023.07.008

Abstract: and proposes the key directions in China:design theory of composite components under extreme and multi-fieldWe suggest that research should be conducted on multi-field and multi-scale design technology of

Keywords: composite material components     multi-field and multi-scale design     dynamic design     data-driven simulation    

A novel approach to minimizing material loss for computer numerical control flank-regrinding of worn

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0757-z

Abstract: However, the traditional method involves material waste by trial and error and dramatically decreasesstudy presented a new approach to planning the wheel path for regrinding worn end mills to minimize materialResults showed that the proposed approach could save 25% of cutter material compared with the traditionalThis work effectively provides a general regrinding solution for the worn flank with maximum material-saving

Keywords: flank-regrinding     worn end mill     wheel position and orientation     material loss     over-cut    

A MATLAB code for the material-field series-expansion topology optimization method

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 607-622 doi: 10.1007/s11465-021-0637-3

Abstract: This paper presents a MATLAB implementation of the material-field series-expansion (MFSE) topo-logy optimizationThe MFSE method uses a bounded material field with specified spatial correlation to represent the structuralWith the series-expansion method for bounded fields, this material field is described with the characteristic

Keywords: MATLAB implementation     topology optimization     material-field series-expansion method     bounded material    

A multiscale material model for heterogeneous liquid droplets in solid soft composites

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1292-1299 doi: 10.1007/s11709-021-0771-3

Abstract: In contrary with conventional composites, which are made of solid elastic inclusions, available materialcomposites including liquid droplets are for highly idealized configurations and do not include all materialavailable models for liquid droplets in solid soft composites and presents a multiscale computational materialDifferent micromechanical material models are incorporated into the presented computational framework

Keywords: liquid in solid     soft composite     computational modeling     multiscale model     heterogeneity    

Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane

Peter TSCHERNUTTER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 63-70 doi: 10.1007/s11709-010-0016-3

Abstract: This paper demonstrates the difficulties in determining the relevant material parameters for a valuationLaboratory as well as field tests on solid rock-fill material were performed before the beginning of

Keywords: embankment dam     bituminous concrete membrane     rock-fill material properties     deformation behavior    

Effects of sheet thickness and material on the mechanical properties of flat clinched joint

Chao CHEN, Huiyang ZHANG, Shengdun ZHAO, Xiaoqiang REN

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 410-419 doi: 10.1007/s11465-020-0618-y

Abstract: In this paper, the effects of sheet thickness and material on the mechanical properties of the clinchedand Al2024 sheets with 2 mm thickness were employed to develop the clinched joint by using different material

Keywords: clinched joint     flat clinching process     thickness configuration     material configuration     mechanical property    

A critical review of preparation design and workability measurement of concrete material for largescale

Guowei MA, Li WANG

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 382-400 doi: 10.1007/s11709-017-0430-x

Abstract: Critical factors that should be particularly controlled in material preparation are specified.Finally, a few of evaluation methods are presented which may offer certain assistance for optimizing material

Keywords: 3D printing     concrete material     printable property     workability measurement     construction automation    

End-of-life batteries management and material flow analysis in South Korea

Hyunhee Kim, Yong-Chul Jang, Yeonjung Hwang, Youngjae Ko, Hyunmyeong Yun

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1019-x

Abstract: In this study, the management and material flow of EOL batteries is presented to determine potential

Keywords: End-of-life battery     Recycling     Material flow analysis (MFA)     Extended producer responsibility (EPR)     Resource    

Title Author Date Type Operation

Robust topology optimization of multi-material lattice structures under material and load uncertainties

Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN

Journal Article

Digital high-efficiency print forming method and device for multi-material casting molds

Zhongde SHAN, Zhi GUO, Dong DU, Feng LIU, Wenjiang LI

Journal Article

Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods

Zheng-Dong MA

Journal Article

Application of coupled multi-body dynamics–discrete element method for optimization of particle damper

Danhui DAN, Qianqing WANG, Jiongxin GONG

Journal Article

Cui Suping: Low Carbon Design, Preparation and Application of Multi-Class Waste Raw Material Cement (

26 Nov 2021

Conference Videos

Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy

Lei WANG, Jing LIU

Journal Article

Thoughts on Scientific Issues in Engineering Material Research

yuqiao

Journal Article

Research Progress of Design Theory and Simulation of Composite Components

Tao Ran, He Chunwang, Luo Junrong, Mao Yiqi, Ma Lianhua

Journal Article

A novel approach to minimizing material loss for computer numerical control flank-regrinding of worn

Journal Article

A MATLAB code for the material-field series-expansion topology optimization method

Journal Article

A multiscale material model for heterogeneous liquid droplets in solid soft composites

Journal Article

Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane

Peter TSCHERNUTTER

Journal Article

Effects of sheet thickness and material on the mechanical properties of flat clinched joint

Chao CHEN, Huiyang ZHANG, Shengdun ZHAO, Xiaoqiang REN

Journal Article

A critical review of preparation design and workability measurement of concrete material for largescale

Guowei MA, Li WANG

Journal Article

End-of-life batteries management and material flow analysis in South Korea

Hyunhee Kim, Yong-Chul Jang, Yeonjung Hwang, Youngjae Ko, Hyunmyeong Yun

Journal Article