Tensile behavior simulation of ECC/SHCC at subzero temperatures based on a fiber/interface combination constitutive model

IF 10.8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Cement & concrete composites Pub Date : 2025-02-06 DOI:10.1016/j.cemconcomp.2025.105969

Yanlin Huo , Xiaoyu Han , Chunran Wu , Dong Lu , Huayang Sun , Zhitao Chen , Yingzi Yang , Victor C. Li

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引用次数: 0

Abstract

The performance degradation of Engineered Cementitious Composites/Strain-hardening cementitious composites (ECC/SHCC) at subzero temperatures is becoming a widespread concern. However, experimental testing and data acquisition in cold environments are very difficult and demanding. It is an inevitable trend to use numerical simulation for research. In this paper, a finite element model based on a fiber/interface combination constitutive model was proposed to simulate the tensile behavior of SHCC at subzero temperatures. While the validity of the model was verified using 16 groups of tests, the reduction in multiple cracking and the increased proportion of fiber and interface failures induced with decreasing temperature were explored. The effect of matrix cracking strength on the tensile properties of SHCC was further compared. It was found that a lower matrix cracking strength could help SHCC to maintain high ductility at −60 °C, and the tensile strain capacity could reach 6.58 %. Therefore, it is crucial to control the matrix cracking strength in the design and application of SHCC in cold regions. The simulation method in this paper is expected to provide new insights for the development of high ductility SHCC in winter climate.

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来源期刊

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.