Owing to the unique non-self-similar hierarchical microstructure, enamel achieves the balance of high stiffness and toughness, and in turn provides important ideas for the bio-inspired materials design. In this study, a multiscale numerical study has been conducted to investigate whether the property of high stiffness and large energy dissipation could be duplicated in engineering materials through certain material design principles. Motivated by the structure of enamel, the bio-inspired materials consisting of hard and soft phases were considered, and the designing parameters including the cross-sectional shape, volume fraction, and inclination angle of the reinforcement, and other three parameters related to the waviness of the reinforcement were taken into account. It was found that by employing the non-self-similar hierarchical structure, the designed composites exhibited the balance between stiffness and toughness, which has not been achieved in many engineering materials yet. Furthermore, the influences of the aforementioned designing parameters on the mechanical performance of the composites have been elucidated. The findings of this study have provided a guideline for designing bio-inspired composites achieving the balance between stiffness and toughness.
基金：
Science Foundation for Youth Scientists of Zhejiang Province [LQ20A020001]; Scientific Research Project of Huzhou University [2019XJKJ34]; Natural Science Foundation of Zhejiang ProvinceNatural Science Foundation of Zhejiang Province [LY20E050003]
第一作者机构：[1]Huzhou Univ, Sch Engn, 759 Erhuandong Rd, Huzhou 313000, Peoples R China[*1]School of Engineering Huzhou University, 759 Erhuandong Road, Huzhou, 313000, PR China
通讯作者：
通讯机构：[1]Huzhou Univ, Sch Engn, 759 Erhuandong Rd, Huzhou 313000, Peoples R China[*1]School of Engineering Huzhou University, 759 Erhuandong Road, Huzhou, 313000, PR China
推荐引用方式(GB/T 7714)：
Zhang Shuiqiang,Liu Yuying,Shang Jiangyinzi,et al.Enamel-inspired materials design achieving balance of high stiffness and large energy dissipation[J].JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS.2020,103:doi:10.1016/j.jmbbm.2019.103587.
APA：
Zhang, Shuiqiang,Liu, Yuying,Shang, Jiangyinzi,Chudry, Md Khaled Ujjaman,Zheng, Yuqing...&Zheng, Ruizhe.(2020).Enamel-inspired materials design achieving balance of high stiffness and large energy dissipation.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,103,
MLA：
Zhang, Shuiqiang,et al."Enamel-inspired materials design achieving balance of high stiffness and large energy dissipation".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 103.(2020)
