Fracture evaluation of ultra-high-performance fiber reinforced concrete (UHPFRC)

Youyou Zhang, Haohui Xin*, José A.F.O. Correia

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
23 Downloads (Pure)

Abstract

The development of numerical simulation for Ultra-high-performance concrete (UHPC) and Ultra-high-performance fiber-reinforced concretes (UHPFRC) is fundamental for the design and construction of related structures. The simplified engineering stress-strain relationship and the input values are necessary in the finite element modeling. Four-linear curves and modified Kent–Park model were proposed to describe the engineering tensile and compressive stress-strain relationship, respectively. An attempt was made to simulate the fracture of UHPC and UHPFRC using concrete damaged plasticity model and element deletion strategies. The predicted tensile and compressive behaviors of UHPC and UHPFRC were successfully validated by the test results in the literature. For a better understanding of the mechanical behavior of UHPC and UHPFRC exposed to biaxial loadings, mixed-mode crack propagation simulation on the double-notched specimens exposed to combined shear-tensile and shear-compressive forces was discussed.

Original languageEnglish
Article number105076
Pages (from-to)1-21
Number of pages21
JournalEngineering Failure Analysis
Volume120
DOIs
Publication statusPublished - 2021

Keywords

  • Engineering tensile and compressive stress-strain relationships
  • Mixed mode crack propagation
  • Ultra-high-performance concrete (UHPC)
  • Ultra-high-performance fiber-reinforced concretes (UHPFRC)

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