Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Numerical Simulation of the Fracture Behaviour of High-Performance Fibre Reinforced Concrete by Using a Cohesive-Crack-Based Inverse Analysis

Version 1 : Received: 29 November 2021 / Approved: 30 November 2021 / Online: 30 November 2021 (12:08:45 CET)

A peer-reviewed article of this Preprint also exists.

Enfedaque, A.; Alberti, M.G.; Gálvez, J.C.; Cabanas, P. Numerical Simulation of the Fracture Behavior of High-Performance Fiber-Reinforced Concrete by Using a Cohesive Crack-Based Inverse Analysis. Materials 2022, 15, 71. Enfedaque, A.; Alberti, M.G.; Gálvez, J.C.; Cabanas, P. Numerical Simulation of the Fracture Behavior of High-Performance Fiber-Reinforced Concrete by Using a Cohesive Crack-Based Inverse Analysis. Materials 2022, 15, 71.

Journal reference: Materials 2021, 15, 71
DOI: 10.3390/ma15010071

Abstract

Fibre reinforced concrete (FRC) has become an alternative for structural applications due its outstanding mechanical properties. The appearance of new types of fibres and the fibre cocktails that can be configured mixing them has created FRC that clearly exceed the minimum mechanical properties required in the standards. Consequently, in order to take full advantage of the contribution of the fibres in construction projects, it is of great interest to have constitutive models that simulate the behaviour of the materials. This study aimed to simulate the fracture behaviour of five types of FRC, three with steel hooked fibres, one with a combination of two types of steel fibres and one with a combination of polyolefin fibres and two types of steel fibres, by means of an inverse analysis based on the cohesive crack approach. The results of the numerical simulations defined the softening functions of each FRC formulation and have pointed out the synergies that are created through use of fibre cocktails. The information obtained might suppose a remarkable advance for designers using high-performance FRC in structural elements.

Keywords

fibre reinforced concrete; simulation; cohesive crack; fibre cocktail

Subject

ENGINEERING, Civil Engineering

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