Topology optimization for 3D concrete printing with various manufacturing constraints

Bi, Minghao; Tran, Phuong T.; Xia, Lingwei; Ma, Guowei; Xie, Yi Min

doi:10.1016/j.addma.2022.102982

Cited by 23 publications

(13 citation statements)

References 64 publications

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“…The waste materials are used as the substitutions of aggregate and binder contents, thereby reducing the carbon emission associated with the material extraction. At the structural level, the design of hollow structures via topology optimization (TO) 13,14 reduces the material usage and thus enhances sustainability. TO involves the optimization of material distribution to achieve the desired performance.…”

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confidence: 99%

A comprehensive review of sustainable materials and toolpath optimization in 3D concrete printing

Zhuang,

Xu,

et al. 2024

npj Mater. Sustain.

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The construction sector has experienced remarkable advancements in recent years, driven by the demand for sustainable and efficient building practices. Among these advancements, 3D concrete printing has emerged as a highly promising technology that holds the potential to revolutionize the construction industry. This review paper aims to provide a comprehensive analysis of the latest developments in three vital areas related to 3D concrete printing: sustainable materials, structural optimization, and toolpath design. A systematic literature review approach is employed based on established practices in additive manufacturing for construction to explore the intersections between these areas. The review reveals that material recycling plays a crucial role in achieving sustainable construction practices. Extensive research has been conducted on structural optimization methodologies to enhance the performance and efficiency of 3D printed concrete structures. In the printing process, toolpath design plays a significant role in ensuring the precise and efficient deposition of concrete. This paper discusses various toolpath generation strategies that take factors such as geometric complexity, printing constraints, and material flow control into account. In summary, the insights presented in this paper may serve as guidelines for researchers, engineers, and industry professionals towards sustainable and efficient construction practices using 3D concrete printing technology.

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confidence: 99%

A comprehensive review of sustainable materials and toolpath optimization in 3D concrete printing

Zhuang,

Xu,

et al. 2024

npj Mater. Sustain.

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“…The layer-by-layer processing manner endows 3D printing with unprecedented design flexibility, which is well compatible with the concept of topology optimization (TO), whose geometrical complexity often restricts its application using conventional manufacturing methods [111]. On the other hand, TO also becomes a powerful tool to guide the design for 3D printing.…”

Section: Design For MM 3d Printingmentioning

confidence: 99%

Digital light processing based multimaterial 3D printing: challenges, solutions and perspectives

Cheng,

Yu,

Wang

et al. 2024

Int. J. Extrem. Manuf.

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Multimaterial (MM) 3D printing shows great potential for application in metamaterials, flexible electronics, biomedical devices and robots, since it can seamlessly integrate distinctive materials into one printed structure. Among numerous MM 3D printing technologies, digital light processing (DLP) MM 3D printing is compatible with a wide range of materials from hydrogels to ceramics, and can print MM 3D structures with high resolution, high complexity and fast speed. This paper introduces the fundamental mechanisms of DLP 3D printing, and reviews the recent advances of DLP MM 3D printing technologies with emphasis on material switching methods and material contamination issues. It also summarizes a number of typical examples of DLP MM 3D printing systems developed in the past decade, and introduces their system structures, working principles, material switching methods, residual resin removal methods, printing steps, as well as the representative structures and applications. Finally, we provide perspectives on the directions of the further development of DLP MM 3D printing technology.

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“…Topology optimization for support design and its requirement is developed by (Vanek et al, 2014) to optimize the material usage while effectively supporting the overhangs. Bi et al (2022) and Langelaar (2016) presented a topology optimization formulation with layer-wise filtering to remove the unprintable geometries to generate fully self-supported optimized designs helpful in reducing the need for support structures but limiting the design freedom.…”

Section: Printing Overhang and Complex Geometriesmentioning

confidence: 99%

A review of concrete 3D printed structural members

Raphael

Senthilnathan

Patel

et al. 2023

Front. Built Environ.

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Concrete 3D Printing (3DP) is a potential technology for increasing automation and introducing digital fabrication in the construction industry. Concrete 3D Printing provides a significant advantage over conventional or precast methods, such as the prospects of topologically optimized designs and integrating functional components within the structural volume of the building components. Many previous studies have compiled state-of-art studies in design parameters, mix properties, robotic technologies, and reinforcement strategies in 3D printed elements. However, there is no literature review on using concrete 3D Printing technology to fabricate structural load-carrying elements and systems. As concrete 3DP is shifting towards a large-scale construction technology paradigm, it is essential to understand the current studies on structural members and focus on future studies to improve further. A systematic literature review process is adopted in this study, where relevant publications are searched and analyzed to answer a set of well-defined research questions. The review is structured by categorizing the publications based on issues/problems associated with structural members and the recent technology solutions developed. It gives an overall view of the studies, which is still in its nascent stage, and the areas which require future focus on 3D printing technology in large-scale construction projects.

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Topology optimization for 3D concrete printing with various manufacturing constraints

Cited by 23 publications

References 64 publications

A comprehensive review of sustainable materials and toolpath optimization in 3D concrete printing

A comprehensive review of sustainable materials and toolpath optimization in 3D concrete printing

Digital light processing based multimaterial 3D printing: challenges, solutions and perspectives

A review of concrete 3D printed structural members

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