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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    

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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-materialprinting molds, low manufacturing efficiency, and necessary post-process drying and heating for the manufactureThis study proposes a novel high-efficiency print forming method and device for multi-material castingforming method for layered heating and roller compaction presented in this study effectively shortens the manufacturingThe 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    

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Design and applications of morphing aircraft and their structures

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0750-6

Abstract: Second, the novel applications of several technologies for morphing unmanned aerial vehicles, including additivemanufacturing for fabricating complex morphing structures, lattice technology for reducing structuralweight, and multi-mode morphing combined with flexible skins and foldable structures, are summarizedfurther development of active morphing aircraft, the paper reviews morphing structures driven by smart material

Keywords： morphing aircraft     additive manufacturing     lattice structure     smart material     flexible structure     flexible    

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An identification method for enclosed voids restriction in manufacturability design for additive manufacturing

Shutian LIU,Quhao LI,Wenjiong CHEN,Liyong TONG,Gengdong CHENG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 126-137 doi: 10.1007/s11465-015-0340-3

Abstract:

Additive manufacturing (AM) technologies, such as selective laser sintering (SLS) and fused depositionmodeling (FDM), have become the powerful tools for direct manufacturing of complex parts.capabilities as well as manufacturing constraints of AM were neglected.In this method, suppose that the voids in structure are filled with a virtual heating material with highheat conductivity and solid areas are filled with another virtual material with low heat conductivity

Keywords： additive manufacturing     topology optimization     manufacturability constraints     design for additive manufacturing    

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Additive Design and Manufacturing of Jet Engine Parts

Pinlian Han

Engineering 2017, Volume 3, Issue 5,   Pages 648-652 doi: 10.1016/J.ENG.2017.05.017

Abstract:

The additive design (AD) and additive manufacturing (AM) of jet engine parts will revolutionize theCollaboration between design and manufacturing is the key to success in fields including aerodynamics, thermodynamics, structural integration, heat transfer, material development, and machining.change the way they design a part, as they shift from the traditional method of “subtracting material” to the new method of “adding material” in order to manufacture a part.

Keywords： Additive manufacturing     Additive design     Jet engine     Porous structure    

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Manufacturing cost constrained topology optimization for additive manufacturing

Jikai LIU, Qian CHEN, Xuan LIANG, Albert C. TO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 213-221 doi: 10.1007/s11465-019-0536-z

Abstract: laser powder bed additive manufacturing process.Topology optimization for additive manufacturing was recently extensively studied, and many related topicsHowever, metal additive manufacturing is an expensive process, and the high manufacturing cost severelyTechnically, the additive manufacturing cost model for laser powder bed-based process is establishedTherefore, by properly developing the sensitivity result, the metallic additive manufacturing part can

Keywords： topology optimization     manufacturing cost     additive manufacturing     powder bed    

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Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 133-150 doi: 10.1007/s11465-020-0610-6

Abstract: Compared with traditional machining methods, additive manufacturing (AM) technology can decrease the

Keywords： surface accuracy optimization     multiple circular holes     additive manufacturing (AM)     part build orientation    

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Additive manufacturing: technology, applications and research needs

Nannan GUO, Ming C. LEU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 215-243 doi: 10.1007/s11465-013-0248-8

Abstract:

Additive manufacturing (AM) technology has been researched and developed for more than 20 years.adding materials layer by layer, offering the beneficial ability to build parts with geometric and materialcomplexities that could not be produced by subtractive manufacturing processes.

Keywords： additive manufacturing (AM)     AM processes     AM materials     AM applications    

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Modeling process-structure-property relationships for additive manufacturing

Wentao YAN, Stephen LIN, Orion L. KAFKA, Cheng YU, Zeliang LIU, Yanping LIAN, Sarah WOLFF, Jian CAO, Gregory J. WAGNER, Wing Kam LIU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 482-492 doi: 10.1007/s11465-018-0505-y

Abstract: presents our latest work on comprehensive modeling of process-structure-property relationships for additivemanufacturing (AM) materials, including using data-mining techniques to close the cycle of design-predict-optimizeTo illustrate the process-structure relationship, the multi-scale multi-physics process modeling startshigh-efficiency mechanistic model, self-consistent clustering analyses, is developed to capture a variety of material

Keywords： additive manufacturing     thermal fluid flow     data mining     material modeling    

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Introduction to the Special Issue on Additive Manufacturing

Editorial Board of Special Issue on Additive Manufacturing

Engineering 2017, Volume 3, Issue 5, doi: 10.1016/J.ENG.2017.05.027

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Review of materials used in laser-aided additive manufacturing processes to produce metallic products

Xiaodong NIU, Surinder SINGH, Akhil GARG, Harpreet SINGH, Biranchi PANDA, Xiongbin PENG, Qiujuan ZHANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 282-298 doi: 10.1007/s11465-019-0526-1

Abstract: Rapid prototyping (RP) or layered manufacturing (LM) technologies have been extensively used to manufactureTherefore, extensive research has been conducted to develop new additive manufacturing (AM) technologiesThis review can help experts select the ideal type of process or technology for the manufacturing ofelements composed of a given alloy or material (Ni, Ti, Al, Pb, and stainless steel).

Keywords： direct metal deposition     laser-based manufacturing     rapid manufacturing     selective laser melting     additivemanufacturing    

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Exploiting Additive Manufacturing Infill in Topology Optimization for Improved Buckling Load Artical

Anders Clausen, Niels Aage, Ole Sigmund

Engineering 2016, Volume 2, Issue 2,   Pages 250-257 doi: 10.1016/J.ENG.2016.02.006

Abstract:

Additive manufacturing (AM) permits the fabrication of functionally optimized components with highThe opportunity of using porous infill as an integrated part of the manufacturing process is an exampleDepending on the properties of the infill material, the buckling load may be more than four times higher

Keywords： Additive manufacturing     Infill     Topology optimization     Buckling    

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Development of Additive Manufacturing Technology and Industry in China

Wang Lei, Lu Bingheng

Strategic Study of CAE 2022, Volume 24, Issue 4,   Pages 202-211 doi: 10.15302/J-SSCAE-2022.04.018

Abstract: genome design, multi-material functional gradient structure, metamaterial structure, bionic materialsmulti-material functional gradient structure.Additive Manufacturing Strategy.with additive and subtractive material processing (equipment application).lightweight metals and new alloys, space AM technology for composite materials, space augmentation for multi-material

Keywords： additive manufacturing     3D printing     advanced manufacturing     high-end manufacturing equipment industry    

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Compressive behavior and energy absorption of polymeric lattice structures made by additive manufacturing

Sheng WANG, Jun WANG, Yingjie XU, Weihong ZHANG, Jihong ZHU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 319-327 doi: 10.1007/s11465-019-0549-7

Abstract: Lattice structures have numerous outstanding characteristics, such as light weight, high strength, excellent shock resistance, and highly efficient heat dissipation. In this work, by combining experimental and numerical methods, we investigate the compressive behavior and energy absorption of lattices made through the stereolithography apparatus process. Four types of lattice structures are considered: (i) Uniform body-centered-cubic (U-BCC); (ii) graded body-centered-cubic (G-BCC); (iii) uniform body-centered-cubic with -axis reinforcement (U-BCCz); and (iv) graded body-centered-cubic with -axis reinforcement (G-BCCz). We conduct compressive tests on these four lattices and numerically simulate the compression process through the finite element method. Analysis results show that BCCz has higher modulus and strength than BCC. In addition, uniform lattices show better energy absorption capabilities at small compression distances, while graded lattices absorb more energy at large compression distances. The good correlation between the simulation results and the experimental phenomena demonstrates the validity and accuracy of the present investigation method.

Keywords： lattice structure     polymer     compressive behavior     additive manufacturing     simulation    

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Additive direct-write microfabrication for MEMS: A review

Kwok Siong TEH

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 490-509 doi: 10.1007/s11465-017-0484-4

Abstract:

Direct-write additive manufacturing refers to a rich and growing repertoire of well-established fabricationThe technological premises of all direct-write additive manufacturing are identical—convertingThe key differences between the various additive manufacturing techniques are the means of creating theWhile still at its infancy, direct-write additive manufacturing techniques at the microscale have theWith current direct-write additive manufacturing technologies, it is possible to fabricate unsophisticated

Keywords： direct-write     additive manufacturing     microfabrication     MEMS    

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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

Design and applications of morphing aircraft and their structures

Journal Article

An identification method for enclosed voids restriction in manufacturability design for additive manufacturing

Shutian LIU,Quhao LI,Wenjiong CHEN,Liyong TONG,Gengdong CHENG

Journal Article

Additive Design and Manufacturing of Jet Engine Parts

Pinlian Han

Journal Article

Manufacturing cost constrained topology optimization for additive manufacturing

Jikai LIU, Qian CHEN, Xuan LIANG, Albert C. TO

Journal Article

Surface accuracy optimization of mechanical parts with multiple circular holes for additive manufacturing

Jinghua XU, Hongsheng SHENG, Shuyou ZHANG, Jianrong TAN, Jinlian DENG

Journal Article

Additive manufacturing: technology, applications and research needs

Nannan GUO, Ming C. LEU

Journal Article

Modeling process-structure-property relationships for additive manufacturing

Wentao YAN, Stephen LIN, Orion L. KAFKA, Cheng YU, Zeliang LIU, Yanping LIAN, Sarah WOLFF, Jian CAO, Gregory J. WAGNER, Wing Kam LIU

Journal Article

Introduction to the Special Issue on Additive Manufacturing

Editorial Board of Special Issue on Additive Manufacturing

Journal Article

Review of materials used in laser-aided additive manufacturing processes to produce metallic products

Xiaodong NIU, Surinder SINGH, Akhil GARG, Harpreet SINGH, Biranchi PANDA, Xiongbin PENG, Qiujuan ZHANG

Journal Article

Exploiting Additive Manufacturing Infill in Topology Optimization for Improved Buckling Load

Anders Clausen, Niels Aage, Ole Sigmund

Journal Article

Development of Additive Manufacturing Technology and Industry in China

Wang Lei, Lu Bingheng

Journal Article

Compressive behavior and energy absorption of polymeric lattice structures made by additive manufacturing

Sheng WANG, Jun WANG, Yingjie XU, Weihong ZHANG, Jihong ZHU

Journal Article

Additive direct-write microfabrication for MEMS: A review

Kwok Siong TEH

Journal Article