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New Insights into Additive Manufacturing for Materials and Structures
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New Insights into Additive Manufacturing for Materials and Structures

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 1771

Special Issue Editors

Dr. Miao Zhao

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Interests: additive manufacturing; lattice structures; topology optimization; metamaterials
Dr. Xinwei Li

E-Mail Website
Guest Editor
Faculty of Science, Agriculture & Engineering, Newcastle University, 567739, Singapore
Interests: metamaterials; lattice structures; 3D printing; acoustics; energy absorption; mechanical properties; finite element analysis
Special Issues, Collections and Topics in MDPI journals
Dr. Guang Fu

E-Mail Website
Guest Editor
School of Mechanical Engineering, Guizhou University, Guiyang 550025, China
Interests: laser powder bed fusion; multiphysics simulation; porous materials

Special Issue Information

Dear Colleagues,

Additive manufacturing (AM) has revolutionized the field of materials and structural engineering, opening up new avenues for innovation and design in many industries. This Special Issue will highlight advanced materials and structures with high performances based on AM. It will also demonstrate the challenges and opportunities related to AM, such as improving material properties, enhancing structural performance, and optimizing process parameters. Topics of particular interest include, but are not limited to, the following:

  • Additive manufacturing processes, such as laser powder bed fusion, fused deposition modeling, digital light processing, etc.;
  • Advanced materials, such as composite materials, high-entropy alloy, fiber-reinforced polymer, etc.;
  • Multifunctional structures, such as porous structures, lattice structures, metamaterials, etc.;
  • Multifunctional properties, such as lightweight mechanical properties, sound absorption, energy absorption, thermal conductivity, etc.;
  • Advanced design approaches, such as artificial intelligence, multiscale optimization, material–structure–performance integrated design, etc.

Dr. Miao Zhao
Dr. Xinwei Li
Dr. Guang Fu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • additive manufacturing
  • laser powder bed fusion
  • multiphysics simulation
  • lattice structures
  • porous structures
  • metamaterials
  • topology optimization
  • multiscale optimization

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

25 pages, 6810 KiB  
Article
Multiscale Topology Design Based on Non-Penalisation Smooth-Edged Material Distribution for Optimising Topology (SEMDOT)
by Jiye Zhou, Yun-Fei Fu and Kazem Ghabraie
Materials 2025, 18(10), 2394; https://doi.org/10.3390/ma18102394 - 20 May 2025
Viewed by 350
Abstract
This study presents an extension of the Smooth-Edged Material Distribution Optimisation Technique (SEMDOT) to multiscale topology optimisation (MSTO). While the SEMDOT has shown promise in producing smooth and fabrication-friendly structures in various single-scale problems, its application to multiscale design remains unexplored. To extend [...] Read more.
This study presents an extension of the Smooth-Edged Material Distribution Optimisation Technique (SEMDOT) to multiscale topology optimisation (MSTO). While the SEMDOT has shown promise in producing smooth and fabrication-friendly structures in various single-scale problems, its application to multiscale design remains unexplored. To extend SEMDOT to MSTO, a discrete sensitivity approach without penalisation is introduced, in which sensitivities are directly determined by classifying elements. Microstructural properties are computed using energy-based homogenisation with periodic boundary conditions (PBCs), enabling efficient and accurate prediction of effective elastic moduli. Physical fidelity of the smooth boundaries estimated by level-set functions are validated. Numerical results from 2D and 3D compliance minimization benchmarks demonstrate the effectiveness of the SEMDOT method, resulting in smooth boundaries between solid and void phases at both macro- and microscales, overcoming the jagged boundaries and grayscale issues seen in conventional methods. The results also show that the SEMDOT achieves comparable performance to other MSTO methods, with fewer iterations and reduced computational time. Full article
(This article belongs to the Special Issue New Insights into Additive Manufacturing for Materials and Structures)
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16 pages, 41269 KiB  
Article
Enhanced Compressive Mechanical Properties of Bio-Inspired Lattice Metamaterials with Taper Struts
by Shuangyin Yuan, Bingke Song, Gang Liu, Biqi Yang, Mingqiu Dai, Zetian Gao, Shan Cao and Miao Zhao
Materials 2025, 18(1), 29; https://doi.org/10.3390/ma18010029 - 25 Dec 2024
Viewed by 1007
Abstract
The stress distribution within the struts of lattice metamaterials is non-uniform under compressive loads, with stress concentrations typically occurring at the node regions. Inspired by bamboo, this study proposes a type of body-centered cubic (BCC) lattice metamaterial with tapered prism struts (BCCT). The [...] Read more.
The stress distribution within the struts of lattice metamaterials is non-uniform under compressive loads, with stress concentrations typically occurring at the node regions. Inspired by bamboo, this study proposes a type of body-centered cubic (BCC) lattice metamaterial with tapered prism struts (BCCT). The compressive behavior, deformation modes, mechanical properties, and failure mechanisms of BCCT lattice metamaterials are systematically analyzed using finite element methods and validated through compression tests. Parametric analysis is conducted to investigate the effects of key design parameters, including volume fraction, shape parameter, and material properties. The results reveal that BCCT lattice metamaterials effectively eliminate stress concentration at nodes by redistributing stress toward the center of the struts. This redistribution changes the failure mode from shear band failure to layer collapse, while the struts maintain a bending-dominated deformation mechanism under compression. The mechanical properties of BCCT lattice metamaterials are significantly influenced by the shape factor. Furthermore, the mechanical properties of BCCT lattice metamaterials with different volume fractions and materials are consistently superior to BCC ones, which verifies the effectiveness and adaptability of lattice metamaterials with taper prismatic struts for potential lightweight applications. Full article
(This article belongs to the Special Issue New Insights into Additive Manufacturing for Materials and Structures)
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