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author:

Shi, Dandan (Shi, Dandan.) [1] | Chen, Xudong (Chen, Xudong.) [2] | Ning, Yingjie (Ning, Yingjie.) [3] | Ji, Tao (Ji, Tao.) [4] | Wang, Luyao (Wang, Luyao.) [5]

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EI

Abstract:

In this study, repeated compression tests were conducted for ultra-high-performance fiber reinforced concrete (UHPFRC) under three different impact pressures. Results showed that as the impact number increased, the strain rate approximately showed a proportional increase, and the plateau region of the dynamic stress–strain curve became more prominent. Besides, when the repeated impacts increased, the maximum strain and dynamic toughness both exhibited upward trends, while the peak stress decreased. The average toughness was positively correlated with the strain rate. Additionally, under high repeated impact loads, a single crack propagated rapidly within the UHPFRC specimen after single impact. Conversely, cracks propagated from the center to the periphery on the surface of the specimen when repeated loads were low. Furthermore, a quantitative evaluation method for the damage of UHPFRC under repeated impact loads was proposed based on the characteristic parameters of the gray-level co-occurrence matrix (GLCM). © 2023 John Wiley & Sons Ltd.

Keyword:

Compression testing Cracks Fiber reinforced materials Fibers High performance concrete Reinforced concrete Strain rate

Community:

  • [ 1 ] [Shi, Dandan]College of Civil and Transportation Engineering, Hohai University, Nanjing, China
  • [ 2 ] [Chen, Xudong]College of Civil and Transportation Engineering, Hohai University, Nanjing, China
  • [ 3 ] [Ning, Yingjie]Zhejiang Communications Construction Group Co., Ltd., Hangzhou, China
  • [ 4 ] [Ji, Tao]School of Civil Engineering, Fuzhou University, Fuzhou, China
  • [ 5 ] [Wang, Luyao]Zhejiang Communications Construction Group Co., Ltd., Hangzhou, China

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Source :

Fatigue and Fracture of Engineering Materials and Structures

ISSN: 8756-758X

Year: 2023

Issue: 11

Volume: 46

Page: 4299-4314

3 . 1

JCR@2023

3 . 1 0 0

JCR@2023

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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