Experimental and analytical study of the high-strain-rate compressive behavior of SFRC

The compressive behavior of steel-fiber-reinforced-concrete (SFRC) is dependent on the loading rate. This research investigates, experimentally and analytically, the effect of loading rate on the compressive behavior of SFRC designed to be used in prefabricated urban protective furniture. For this p...

Full description

Saved in:
Bibliographic Details
Published in:Mechanics of advanced materials and structures 2024-10, Vol.31 (19), p.4527-4550
Main Authors: Bakhshi, Mohammad, Valente, Isabel B., Ramezansefat, Honeyeh, Barros, Joaquim A. O., Pereira, Eduardo N. B., Peixinho, Nuno R. M.
Format: Article
Language:English
Subjects:
Compressive properties
Compressive strength
Dissipation factor
drop-weight test
Dynamic compressive behavior
Elastic analysis
Energy dissipation
Engenharia Civil
Engenharia e Tecnologia
Impact load
Impact prediction
Impact strength
Impact tests
Inertia force
Loading rate
Mechanical properties
Reinforcing steels
Science & Technology
Split Hopkinson pressure bars
Static tests
Steel fiber reinforced concrete
Steel fiber reinforced concretes
Storage modulus
Strain analysis
Strain rate
Weight
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The compressive behavior of steel-fiber-reinforced-concrete (SFRC) is dependent on the loading rate. This research investigates, experimentally and analytically, the effect of loading rate on the compressive behavior of SFRC designed to be used in prefabricated urban protective furniture. For this purpose, cylinder SFRC specimens were subjected to modified instrumented-drop-weight-impact tests at four dropping heights and quasi-static tests with four different strain rates. The inertia force was analytically obtained and also experimentally measured. The results demonstrate that by increasing the strain rate, elastic modulus, compressive strength, and energy dissipation capacity have increased. Three different models were proposed for predicting each mechanical characteristic, one in the range of quasi-static and the others in the range of impact corresponding to the split Hopkinson pressure bar and drop-weight-impact tests. The experimental dynamic to static ratios obtained for SFRC properties were discussed and compared with those proposed by present study and from other researchers. Three proposed models significantly improve the prediction the dynamic increase factor values in terms of compressive strength, modulus of elasticity and toughness.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2023.2199420