Details
| Original language | English |
|---|---|
| Pages (from-to) | 290-306 |
| Number of pages | 17 |
| Journal | Engineering Fracture Mechanics |
| Volume | 192 |
| Publication status | Published - 24 Dec 2017 |
Abstract
Quasi-brittle materials such as concrete suffer from cracks during their life cycle, requiring great cost for conventional maintenance or replacement. In the last decades, self-healing materials are developed which are capable of filling and healing the cracks and regaining part of the stiffness and strength automatically after getting damaged, bringing the possibility of maintenance-free materials and structures. In this paper, a time dependent softening-healing law for self-healing quasi-brittle materials is presented by introducing limited material parameters with clear physical background. Strong Discontinuity embedded Approach (SDA) is adopted for evaluating the reliability of the model. In the numerical studies, values of healing parameters are firstly obtained by back analysis of experimental results of self-healing beams. Then numerical models regarding concrete members and structures built with self-healing and non-healing materials are simulated and compared for showing the capability of the self-healing material.
Keywords
- Quasi-brittle materials, Self-healing, Strong Discontinuity embedded Approach (SDA), Traction separation law
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Engineering Fracture Mechanics, Vol. 192, 24.12.2017, p. 290-306.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A softening-healing law for self-healing quasi-brittle materials
T2 - Analyzing with strong discontinuity embedded approach
AU - Zhang, Yiming
AU - Zhuang, Xiaoying
N1 - Funding information: The authors gratefully acknowledge financial support by Alexander von Humboldt Foundation Germany , through Sofja Kovalevskaja Award, year 2015 winner Dr. Xiaoying Zhuang.
PY - 2017/12/24
Y1 - 2017/12/24
N2 - Quasi-brittle materials such as concrete suffer from cracks during their life cycle, requiring great cost for conventional maintenance or replacement. In the last decades, self-healing materials are developed which are capable of filling and healing the cracks and regaining part of the stiffness and strength automatically after getting damaged, bringing the possibility of maintenance-free materials and structures. In this paper, a time dependent softening-healing law for self-healing quasi-brittle materials is presented by introducing limited material parameters with clear physical background. Strong Discontinuity embedded Approach (SDA) is adopted for evaluating the reliability of the model. In the numerical studies, values of healing parameters are firstly obtained by back analysis of experimental results of self-healing beams. Then numerical models regarding concrete members and structures built with self-healing and non-healing materials are simulated and compared for showing the capability of the self-healing material.
AB - Quasi-brittle materials such as concrete suffer from cracks during their life cycle, requiring great cost for conventional maintenance or replacement. In the last decades, self-healing materials are developed which are capable of filling and healing the cracks and regaining part of the stiffness and strength automatically after getting damaged, bringing the possibility of maintenance-free materials and structures. In this paper, a time dependent softening-healing law for self-healing quasi-brittle materials is presented by introducing limited material parameters with clear physical background. Strong Discontinuity embedded Approach (SDA) is adopted for evaluating the reliability of the model. In the numerical studies, values of healing parameters are firstly obtained by back analysis of experimental results of self-healing beams. Then numerical models regarding concrete members and structures built with self-healing and non-healing materials are simulated and compared for showing the capability of the self-healing material.
KW - Quasi-brittle materials
KW - Self-healing
KW - Strong Discontinuity embedded Approach (SDA)
KW - Traction separation law
UR - http://www.scopus.com/inward/record.url?scp=85041556799&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2017.12.018
DO - 10.1016/j.engfracmech.2017.12.018
M3 - Article
AN - SCOPUS:85041556799
VL - 192
SP - 290
EP - 306
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
ER -