Peng-Da Li

Dr. Peng-Da Li

College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, China
orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2019 in Composites Part B: Engineering
Verified
Journal Article
Closed access
YZYingwu Zhou
Yingwu Zhou
YZYaowei Zheng
Yaowei Zheng
JPJun Pan
Jun Pan
LSLili Sui
Lili Sui
FXFeng Xing
Feng Xing
Peng-Da LiPeng-Da Li
Peng-Da Li

12 February 2023 in Cement and Concrete Composites
Verified
Journal Article
Open access
Peng-Da LiPeng-Da Li
Peng-Da Li
YWYu-Fei Wu
Yu-Fei Wu

1 April 2019 in Composites Part B: Engineering
Verified
Journal Article
Closed access
Peng-Da LiPeng-Da Li
Peng-Da Li
Yu-Fei WuYu-Fei Wu
Yu-Fei Wu
YZYingwu Zhou
Yingwu Zhou
FXFeng Xing
Feng Xing

1 March 2019 in Composites Part B: Engineering
Verified
Journal Article
Closed access
Peng-Da LiPeng-Da Li
Peng-Da Li
LSLili Sui
Lili Sui
FXFeng Xing
Feng Xing
YZYingwu Zhou
Yingwu Zhou

1 April 2019 in Composites Part B: Engineering
Verified
Journal Article
Closed access
YZYingwu Zhou
Yingwu Zhou
YZYaowei Zheng
Yaowei Zheng
LSLili Sui
Lili Sui
FXFeng Xing
Feng Xing
JHJingjing Hu
Jingjing Hu
Peng-Da LiPeng-Da Li
Peng-Da Li

9 August 2018 in Polymers
Verified
Journal Article
Open access
PDF file
LSLili Sui
Lili Sui
QZQianli Zhong
Qianli Zhong
QHQibing Hang
Qibing Hang
FXFeng Xing
Feng Xing
Peng-Da LiPeng-Da Li
Peng-Da Li
Yingwu ZhouYingwu Zhou
Yingwu Zhou
In recent years, the application of engineered cementitious composites (ECCs) in structures subjected to cyclic fatigue loading, such as highway bridges, has gained widespread attention. However, most existing ECCs do not have sufficient strength and ductility, which limits their applications, especially in highway bridge structures under high-stress. In this work, an ultra-high performance engineered cementitious composite (UHP-ECC) was configured, which had a compressive strength of approximately 120 MPa, a tensile strength of up to 12 MPa, and a tensile strain capacity of more than 8%. This paper presents a study of the fatigue performance of UHP-ECC at four different fatigue stress levels through the four-point bending test. The mid-span deflection of the specimen was monitored along with the crack opening displacement (COD) of the pure bending section at the bottom of the specimen, and the crack width. In addition, the dissipated energy was calculated at various stress levels. The progressive formation of cracks under static loading was monitored using the digital image correlation (DIC) technique. The fibers at the fractured surface of the specimens were observed and analyzed by environmental scanning electron microscopy, and the morphology of the fibers was obtained at different fatigue stress levels. Eventually, the fatigue life under different stress levels was obtained, and the relationship between the fatigue life and the stress level was established.