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2019-5-14 · dynamic analysis program using new material models 149 Fig. 4.1 Average compression test results for steel fiber concrete samples given in Table 3.2 158 Fig. 4.2 Average compressive stress-strain curves of steel fiber reinforced concrete given in Table 3.4 159
The dynamic mechanical properties of steel-fiber reinforced ultra high strength concrete with different fiber volume fractions were studied by the split Hopkinson press bar testing method under impact compression with different strain rates.The experimental results show that the steel-fiber reinforced ultra high strength concrete is sensitive to strain rate.The relations between the mechanical
It is important to enhance the ductility of high strength concrete (HSC), and one possible direction is to use steel fibers reinforced, named steel fiber reinforced high strength concrete (SFRHSC).In this paper, The crack characteristics of steel fiber reinforced concrete is investigated in the SHPB test. The incident wave and transmission wave varying with the time have been obtained by SHPB
The addition of steel fibers into concrete mix can significantly improve the engineering properties of concrete. The mechanical behaviors of steel fiber reinforced high-performance concrete with fly ash (SFRHPFAC) are studied in this paper through both static compression test and dynamic impact test. Cylindrical and cube specimens with three volume fractions of end-hooked steel fibers with
This paper presents experimental results on three kinds of concretes, plain concrete (PC), 1.5% and 3% steel fiber reinforced concrete (SFRC), subjected to dynamic tensile loading. The cylinder splitting (Brazilian disc) specimens are loaded by a modified Split Hopkinson Pressure Bar (SHPB) with various loading rates (100~500 GPa/s).
Steel fiber reinforced concrete (SFRC) has exhibited suitable tension strength and post-cracking deformation capacities. Performance observed during tests prompts SFRC as a prominent raw material for construction of low-rise concrete wall housing in
Strain-hardening cementitious composites (SHCCs) reinforced with both basalt and steel fibers are expected to possess the advantages of both fiber materials and exhibit desirable mechanical properties. In this study, we experimentally investigated the dynamic mechanical properties of an SHCC reinforced with inorganic fibers of basalt and steel for different strain rates (101 to 102 s−1