Erqiang Li

Dr. Erqiang Li

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

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

Representative Publications

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13 February 2023 in Applied Sciences
Verified
Journal Article
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ELErqiang Li
Erqiang Li
YWYanqing WEI
Yanqing WEI
ZCZhan-yang Chen
Zhan-yang Chen
LZLongfei Zhang
Longfei Zhang
Slate with inherently transverse isotropy is abundant in metamorphic rock, in buildings, and in geotechnical engineering worldwide; the tensile and shear fracture behavior of layered slate is vital to know for engineering applications. In this paper, the Brazilian and semi-circular bend (SCB) tests of layered slate were performed. The fracture characteristics of the slate were investigated by numerical simulations developed by the hybrid finite and cohesive element method (FCEM). Results showed that the measured experimental tensile strength, and mode I fracture toughness of layered slate all showed a typical V-type trend as the bedding angle increased from 0° to 90°, and with divider type. The developed empirical relationship between tensile fracture toughness and tensile strength KIC = 0.094σt + 0.036 fitted experimentally and strongly correlated. The mechanical response and fracture patterns predicted by FCEM agreed well with those of the laboratory experiments. Moreover, the shear fracture behavior and mode II fracture toughness of the layered slate were explored by systematic numerical simulations. Research results provide potential insights for further prediction and improvement of the complex fracture behavior of anisotropic rock masses for rock engineering.

25 March 2023 in Environmental Earth Sciences
Verified
Journal Article
Closed access
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NZNingning Zhao
Ningning Zhao
JFJili Feng
Jili Feng
ELErqiang Li
Erqiang Li

12 April 2023 in Geotechnical and Geological Engineering
Verified
Journal Article
Closed access
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ELErqiang Li
Erqiang Li
TZTianyu Zhu
Tianyu Zhu
YWYanqing Wei
Yanqing Wei