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Author:

Chen, Miao (Chen, Miao.) | Yang, Liu (Yang, Liu.) | Zang, Chuanwei (Zang, Chuanwei.) | Chen, Yang (Chen, Yang.) | Qi, Zhifeng (Qi, Zhifeng.) | Kong, Biao (Kong, Biao.)

Indexed by:

EI Scopus SCIE

Abstract:

Jointed rock masses are a common phenomenon in rock engineering and are vulnerable to cyclic loads caused by earthquakes, blasts, and traffic loads. Therefore, it is crucial to comprehend the fatigue characteristics of jointed rock masses under dynamic cyclic disturbance for long-term stability assessments of rock engineering structures. This paper aims to investigate the effects of distinct joint inclinations under pre-cyclic loading on the strength and failure characteristics of rock-like specimens using experiments and numerical simulations. The results indicate that cyclic loading decreases the strength of the specimen, and the strength characteristics of the specimen are more apparent as the joint inclination angle becomes smaller. Furthermore, insights into different upper limit stress fatigue behaviors were gained by analyzing strength characteristics, crack propagation characteristics, and failure modes. Numerical results show that the damage degree of cyclic loading at high-stress levels is linked to the joint inclination angle and carrying capacity of specimens, and high cycle stress levels have an impact on the failure mode of the specimen.

Keyword:

numerical modeling damage and failure cyclic load jointed rock particle flow

Author Community:

  • [ 1 ] [Chen, Miao]Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Peoples R China
  • [ 2 ] [Yang, Liu]Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Peoples R China
  • [ 3 ] [Zang, Chuanwei]Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Peoples R China
  • [ 4 ] [Qi, Zhifeng]Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Peoples R China
  • [ 5 ] [Chen, Yang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China
  • [ 6 ] [Kong, Biao]Shandong Univ Sci & Technol, Coll Safety & Environm Engn, Qingdao, Peoples R China

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Source :

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES

ISSN: 8756-758X

Year: 2023

Issue: 8

Volume: 46

Page: 2878-2894

3 . 7 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:26

Cited Count:

WoS CC Cited Count: 9

SCOPUS Cited Count: 9

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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