Lattice discrete particle modeling of fiber reinforced concrete: Experiments and simulations

Congrui Jin, Nicola Buratti, Marco Stacchini, Marco Savoia, Gianluca Cusatis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Naturally accounting for material heterogeneity, the Lattice Discrete Particle Model (LDPM) is a meso-scale model developed recently to simulate the meso-structure of quasi-brittle materials by a three-dimensional (3D) assemblage of polyhedral particles. A meso-scale constitutive law governs the interaction between adjacent particles and simulates various features of the meso-scale response, including cohesive fracturing, strain softening in tension, strain hardening in compression and material compaction due to pore collapse. LDPM has been extensively calibrated/validated, showing superior capabilities in predicting qualitative and quantitative behavior of concrete. As a natural extension for this discrete model to include the effect of dispersed fibers as discrete entities within the meso-structure, LDPM-F incorporates this effect by modeling individual fibers, randomly placed within the volume according to a given fiber volume fraction. In this investigation, the theoretical basis for LDPM-F is reviewed, and to calibrate/validate the numerical model, an extensive experimental study has been conducted to investigate the mechanical properties of various prismatic specimens containing different types (steel and synthetic) and dosages of fibers. Excellent predictive capability of LDPM-F is demonstrated through a rigorous calibration/validation procedure.

Original languageEnglish (US)
Pages (from-to)85-107
Number of pages23
JournalEuropean Journal of Mechanics, A/Solids
Volume57
DOIs
StatePublished - May 1 2016

Keywords

  • Discrete models
  • Experiments
  • Fiber reinforced concrete

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Lattice discrete particle modeling of fiber reinforced concrete: Experiments and simulations'. Together they form a unique fingerprint.

Cite this