Voxel-based path-driven 3D concrete printing process simulation framework embedding interlayer behavior

IF 9.6 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
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引用次数: 0

Abstract

This paper introduces a numerical framework to model the 3D concrete printing process, considering critical factors, particularly the print path and interlayer interactions. Within this framework, a finite element model is automatically generated for an arbitrary 3D-printed object. This is achieved by voxelizing the bounding space, incorporating a zero-thickness interlayer cohesive zone, and pinpointing the active elements. Additionally, a print path-driven element segment algorithm is developed, allowing for sequential element placement in alignment with the print path during simulation, thereby mirroring the actual printing process. The model efficacy is demonstrated through two benchmarks, focusing on elastic buckling and plastic failure, where it agrees with existing experimental and numerical data. Using this validated model, the impacts of various printing parameters, such as print width, speed, path, and interlayer behaviors are explored, and an integrated toolbox for both educational and academic purposes is created. This toolbox is available at https://github.com/Baixi-Chen/3DCPProcessSimulaion.git.

嵌入层间行为的基于体素路径驱动的 3D 混凝土打印过程模拟框架
本文介绍了三维混凝土打印过程建模的数值框架,其中考虑了各种关键因素,特别是打印路径和层间相互作用。在此框架内,可为任意三维打印对象自动生成有限元模型。这是通过将边界空间体素化、纳入零厚度的层间内聚区以及精确定位活动元素来实现的。此外,还开发了一种打印路径驱动的元素分段算法,允许在模拟过程中按照打印路径顺序放置元素,从而反映实际的打印过程。该模型的功效通过两个基准进行了验证,重点是弹性屈曲和塑性破坏,与现有的实验和数值数据相吻合。利用这个经过验证的模型,探索了各种印刷参数(如印刷宽度、速度、路径和层间行为)的影响,并创建了一个用于教育和学术目的的集成工具箱。该工具箱可在 https://github.com/Baixi-Chen/3DCPProcessSimulaion.git 上获取。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Automation in Construction
Automation in Construction 工程技术-工程:土木
CiteScore
19.20
自引率
16.50%
发文量
563
审稿时长
8.5 months
期刊介绍: Automation in Construction is an international journal that focuses on publishing original research papers related to the use of Information Technologies in various aspects of the construction industry. The journal covers topics such as design, engineering, construction technologies, and the maintenance and management of constructed facilities. The scope of Automation in Construction is extensive and covers all stages of the construction life cycle. This includes initial planning and design, construction of the facility, operation and maintenance, as well as the eventual dismantling and recycling of buildings and engineering structures.
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