shpb experimental investigation used for concrete

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SHPB Experimental Investigation used for Concrete ...

The incident wave and transmission wave varying with the time have been obtained by SHPB experiment. The relationship curve for stress and strain of material concrete has also been obtained. The Weibull function is used to describe the damage factor of the concrete. The damage factor of the concrete changing with the time under the impact conditions is obtained by the method of fitting the ...

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SHPB Experimental Investigation used for Concrete

Download Citation SHPB Experimental Investigation used for Concrete The incident wave and transmission wave varying with the time have been obtained by SHPB experiment. The relationship curve ...

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A review on split Hopkinson bar experiments on the dynamic ...

Nov 30, 2018  Existing literature reveals that experimental investigations using SHPB and the analysis of the dynamic behavior of concrete and cementitious materials are ongoing , . A modified SHPB setup was utilized in [66] , and a series of tests were conducted on concrete flat-end Brazilian specimens.

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Experimental investigation of rigid confinement effects of ...

Jun 16, 2021  The SHPB loading device was used to provide dynamic stress for the concrete specimens at strain rates ranging from 50 to 250 s −1. The dynamic behaviors of concrete including the dynamic axial stress evaluation, dynamic peak lateral stress, strain rate effect, peak axial strain, and confining effects on the strain rate mechanism are analyzed ...

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Experimental and numerical study on choosing proper pulse ...

Oct 30, 2016  Numerical results validated by the experimental data are used to provide general guidelines to properly choose dimensions of the pulse shapers for the concrete specimens in the SHPB test. Results show that use of a relatively small diameter and thick pulse shaper is suggested as a proper one for testing concrete specimens.

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Experimental Investigation and Gaussian Process Emulation ...

[5] used drop weight impactor and its strain rate reached at 𝜀̇=10/ O. D. Watstein [6] conducted drop weight impactor tests to cylindrical concrete specimen and found that in the range of strain rate at 𝜀̇=10/ O, the dynamic compressive strength went up about 70%. Malvern L E, et al. [7] conducted ∅=76 mm SHPB tests to concrete

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Experimental Study on the Dynamic Mechanical Properties of ...

Dec 24, 2020  Rock bursts are typically accompanied by multiple shocks. In order to explore the dynamic characteristics of filling materials in rock burst roadways, we employ the split Hopkinson pressure bar (SHPB) test to analyze the dynamic mechanical response of mortar and concrete under cyclical impact. The SHPB test results of the large-size specimen indicate the improvement in the

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Experimental study on pulse shaping techniques of large ...

Experimental study on pulse shaping techniques of large diameter SHPB apparatus for concrete Jiangbo Wang et al. Latin American Journal of Solids and Structures, 2021, 18(1), e343 3/15 incident bar and an elastic compressive pulse is generated.

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Dynamic compressive behavior of concrete confined with ...

This paper presents an experimental study on the dynamic compressive behaviors of concrete confined with unidirectional natural flax fiber reinforced polymers (FFRPs) under an axial impact load. A total of 80 specimens were prepared and tested using a 75 mm diameter split Hopkinson pressure bar (SHPB) at different strain rates varying from 50 ...

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Further numerical investigation on concrete dynamic ...

Jul 06, 2020  Based on the SHPB tests of the concrete specimen, the meso-scale concrete model generated in Sect. 2 has been well validated by Lv et al. [].Based on the incident waveform under the striker velocity of 18.58 m/s, the incident waveforms under various striker velocities are achieved through scale conversion, and the corresponding SHPB numerical tests are performed.

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(PDF) Title: Comparative Experimental Investigations on ...

In this paper the compressive impact behavior of steel fiber reinforced ultra-high performance concrete (SF-UHPC) with compressive strengths in excess of 210 MPa was investigated. Different steel fiber volume fractions were used ranging from 0% to

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Dynamic tensile strength enhancement of concrete in split ...

Jun 18, 2018  The SHPB test is widely used to determine the dynamic property of materials. 17 –22 The SHPB test system 23,24 is shown in Figure 1.The disk specimen is sandwiched between the incident bar and transmission bar.

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An experimental investigation of pre-loading effects on ...

An experimental investigation of pre-loading ... Concrete is the most widely used construction material in the ... It is shown in Equation 5 that the average stress was used in the SHPB tests ...

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Numerical investigation of the failure mechanism of cubic ...

Four types of specimens were used to determine the static strength of the concrete including (i) cylinders with the same size as that used for SHPB test (diameter (D)=77 mm and length (L)/D ratio ...

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EXPERIMENTAL STUDY OF THE COMPRESSIVE STRENGTH OF

【Abstract】 Dynamic compressive strength of mortar specimen is studied in a series of SHPB tests in order to examine the effect of lateral confinement on the Dynamic Increasing Factor(DIF) of concrete-like materials.Solid and tubular specimens with different inner and outer diameters are used in SHPB tests.The relationship between DIF and strain rate for a range of specimen geometries ...

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Materials Free Full-Text Experimental Study on the ...

In order to enhance the corrosion resistance of concrete to chloride salt, 5% NaCl solution was used to corrode ordinary concrete (OC) and rubber concrete (RC) with 5%, 10%, and 15% rubber content, respectively. By testing the compressive strength, mass, chloride ion concentration at different depths and relative dynamic elastic modulus, the erosion mechanism was analyzed by means of SEM ...

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V.P.W. Shim_爱学术

刊名:International Journal of Impact Engineering 作者:Y.B. Guo; G.F. Gao; L. Jing; V.P.W. Shim 关键词:High-strength concrete;Split Hopkinson pressure bar;Dynamic increase factor;Finite element simulation;In Honour of the Editor-in-Chief;Professor Magnus Langseth;on his 65th Birthday;Tore;Børvik;Odd;Sture Hopperstad;Arild;Clausen;Norman;Jones 机构 ...

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SHPB Test on Dynamical Mechanical Behavior of Concrete ...

An experimental system is designed by combining the split Hopkinson pressure bar (SHPB) with microwave heating device, based on numerical simulation and stress wave theory, availability of the experiment technique is analyzed. Tests of concrete whose temperature changes from room temperature to 650°C and impact velocity from 5m /s to 12m /s are completed and for the first time

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Experimental Investigation and Gaussian Process Emulation ...

[5] used drop weight impactor and its strain rate reached at 𝜀̇=10/ O. D. Watstein [6] conducted drop weight impactor tests to cylindrical concrete specimen and found that in the range of strain rate at 𝜀̇=10/ O, the dynamic compressive strength went up about 70%. Malvern L E, et al. [7] conducted ∅=76 mm SHPB tests to concrete

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(PDF) Experimental study on pulse shaping techniques of ...

An experimental investigation into the dynamic compressive response of high-strength concrete with three different strengths – 60MPa, 80MPa and 110MPa, denoted by C60, C80 and C110, respectively ...

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An experimental investigation of pre-loading effects on ...

An experimental investigation of pre-loading ... Concrete is the most widely used construction material in the ... It is shown in Equation 5 that the average stress was used in the SHPB tests ...

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Research of an SHPB Device in Two-by-Two Form for Impact ...

Feb 17, 2021  A Ø76.2mm SHPB device was established at the University of Florida in 1984, and a series of impact experiments for concrete materials were conducted subsequently [6,7,8,9,10]. In recent years, the large-diameter SHPB device has been widely used to study concrete materials.

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Experimental parameter control of SHPB based on the ...

Download Citation Experimental parameter control of SHPB based on the geopolymer concrete In order to test the impact mechanical properties of geopolymer concrete (GC) effectively, the slag ...

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The Mechanical Property of Steel Reinforced Concrete under ...

was conducted with SHPB experimental technique four series mixture of SFRHSC were used: C100V4, C100V3, C100V2, C100V0.And the steel fiber volume fraction (v f) were 0, 2%, 3 % and 4% respectively . The primary objective of this research is to enhance the understanding of the response of SFRHSC to high strain rate impact.

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Experimental Study on Dynamic Mechanical Properties of ...

2.3. Test Methods 2.3.1. Experimental Study on Compressive Strength of Coal Gangue Concrete. The compressive strength of concrete was tested according to “The Standard for Test Methods of Mechanical Properties of Ordinary Concrete” (GB/T50081-2019) [].In this test, cube specimens with a size of 100 × 100 × 100 mm were used, and each group was poured with 3 pieces.

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Further investigation on the dynamic compressive strength ...

Further investigation on the dynamic compressive ... in SHPB tests for brittle materials where large diameter specimens are used. Based on SHPB tests, DIFs of concrete-like materials have been studied extensively to obtain many empirical formulae, ... experimental evidences based on SHPB tests on solid and tubular mortar

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Behaviour of Foam Concrete under Impact Loading Based on ...

This paper presents an innovative method for using foam concrete as a typical building material for soft structures in underground coal mines subjected to dynamic loading. To understand the behaviour of foam concrete under impact loading, a total of 30 specimens with a diameter of 50 mm and a height of 50 mm were experimentally tested using a 75#x2009;mm diameter split Hopkinson pressure bar ...

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Further investigation on the dynamic compressive strength ...

Based on a finite element SHPB model, numerical SHPB tests are performed for a range of available SHPB testing results and parametric analyses. It reveals that currently-used DIF formulae based on SHPB tests greatly over-estimate the dynamic compressive strength of concrete-like materials at strain-rates between 101 and 103 s-1 due to the ...

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Experimental and mesoscopic investigation on the dynamic ...

May 08, 2021  To investigate the dynamic responses and comprehending the damage mechanism of coral aggregate concrete (CAC) in compression, both the experimental and numerical investigations were implemented in the present work. Firstly, the dynamic mechanical properties of CAC at different strain rates were tested through the Split-Hopkinson pressure bar (SHPB) tests. Moreover, the effects of concrete ...

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Experimental and three-dimensional mesoscopic ...

Feb 03, 2020  An investigation that combines both experimental tests and mesoscopic modelling is conducted to characterize the dynamic splitting-tensile behavior of coral aggregate concrete (CAC). Static and dynamic splitting-tensile strength and failure patterns of CAC with different uniaxial compressive strength (30–70 MPa) are tested by means of MTS machine and Split-Hopkinson

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Experimental Study on Dynamic Properties of UHMWPE and PVA ...

Aug 20, 2020  The purpose of this paper is to examine the dynamic three-point bending performance of UHMWPE and PVA fiber concrete specimens by means of density variation (0, 0.6, 1.2, 1.8, 2.4 kg/m3). Additionally, the difference in performance between UHMWPE and PVA fiber concretes, as well as the impact characteristics and the damage evolution law exhibited by these fiber concretes under

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