New opportunity: Materials genome strategy for engineered cementitious composites (ECC) design

IF 10.8 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Wenguang Chen , Long Liang , Fangming Jiang , Ziming Tang , Xinjian Sun , Jiangtao Yu , Victor C. Li , Kequan Yu
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引用次数: 0

Abstract

Engineered cementitious composites (ECC) is considered as one of the most promising cement-based materials in construction industry. However, classical micromechanics-based design theory of ECC qualitatively indicates whether a mix meets the pseudo strain-hardening condition, and cannot provide detailed ECC mix compositions targeting specific mechanical performance requirements. This study presents a Materials Genome Initiative (MGI)-oriented strategy to design ECC through properties prediction and optimization design based on machine learning (ML). The genomic characteristics of ECC materials were summarized and analyzed, demonstrating that the mechanical properties of ECC could be closely related with its raw material attributes and mixture proportions. A comprehensive data-driven ML framework for the design of ECC was proposed, which integrates database construction with data treatment, feature selection, interpretable ML model prediction and inverse optimization design. A preliminary study towards designing ECC mixture proportions that meet specific performance requirements was further conducted. Three ML models were developed to predict the tensile properties of ECC based on the constructed database. The weight ratios of the binder, the sand-to-binder ratio, the water-to-binder ratio and the volumetric ratio, diameter, and length of fibers were employed as the input features for the ML modelling. With the best prediction models, two design scenarios with four objectives including tensile strength, tensile ductility, carbon footprint, and material cost of ECC were optimized using non-dominated sorting genetic algorithm II (NSGA-II). As a result, the proposed ML framework could achieve reliable properties prediction and rapid, quantitative, and intelligent design for ECC, which were validated by the experiments. This work introduces the concept of MGI and lays the groundwork of an AI-guided performance-based design of ECC, while further research remains.
新机遇:工程胶凝复合材料(ECC)设计的材料基因组策略
工程胶凝复合材料(ECC)被认为是最具发展前景的水泥基材料之一。然而,经典的基于细观力学的ECC设计理论定性地表明混合料是否满足伪应变硬化条件,并不能提供针对特定力学性能要求的详细ECC混合料组成。本研究提出了一种基于材料基因组计划(MGI)的策略,通过基于机器学习(ML)的性能预测和优化设计来设计ECC。对ECC材料的基因组特征进行了总结和分析,表明ECC材料的力学性能与其原料属性和混合比例密切相关。提出了一种集数据库构建、数据处理、特征选择、可解释机器学习模型预测和逆优化设计于一体的综合数据驱动机器学习框架。对设计符合特定性能要求的ECC配合比进行了初步研究。在构建的数据库基础上,建立了3个ML模型来预测ECC的拉伸性能。结合剂的重量比、砂胶比、水胶比以及纤维的体积比、直径和长度被用作ML建模的输入特征。利用最佳预测模型,采用非主导排序遗传算法II (NSGA-II)对ECC的抗拉强度、抗拉延性、碳足迹和材料成本4个目标的2种设计方案进行优化。实验结果表明,所提出的机器学习框架能够实现可靠的性能预测和快速、定量、智能的ECC设计。这项工作引入了MGI的概念,并为基于ai的基于性能的ECC设计奠定了基础,而进一步的研究仍在进行中。
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来源期刊
Cement & concrete composites
Cement & concrete composites 工程技术-材料科学:复合
CiteScore
18.70
自引率
11.40%
发文量
459
审稿时长
65 days
期刊介绍: Cement & concrete composites focuses on advancements in cement-concrete composite technology and the production, use, and performance of cement-based construction materials. It covers a wide range of materials, including fiber-reinforced composites, polymer composites, ferrocement, and those incorporating special aggregates or waste materials. Major themes include microstructure, material properties, testing, durability, mechanics, modeling, design, fabrication, and practical applications. The journal welcomes papers on structural behavior, field studies, repair and maintenance, serviceability, and sustainability. It aims to enhance understanding, provide a platform for unconventional materials, promote low-cost energy-saving materials, and bridge the gap between materials science, engineering, and construction. Special issues on emerging topics are also published to encourage collaboration between materials scientists, engineers, designers, and fabricators.
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