Experimental and numerical investigation of pulse-shaped split Hopkinson pressure bar test

Naghdabadi, R.; Ashrafi, Mohammad Javad; Arghavani, J.

doi:10.1016/j.msea.2012.01.095

Cited by 68 publications

(49 citation statements)

References 17 publications

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“…By Equation (16), it showed that reducing the velocity of striker bar and adding thickness of pulse shaper d would increase , which agrees with the experimental results and references (Naghdabadi et al 2012). Meanwhile, increasing cross-sectional area of pulse shaper would also increase , which agrees with experimental results and is opposite to the results in references (Naghdabadi et al 2012).…”

Section: Experimental and Theoretical Analysis Of Incident Wavesupporting

confidence: 83%

“…Meanwhile, increasing cross-sectional area of pulse shaper would also increase , which agrees with experimental results and is opposite to the results in references (Naghdabadi et al 2012). Furthermore, the cross-sectional area and wave impedance of bars also contribute to the rising time.…”

Section: Experimental and Theoretical Analysis Of Incident Wavesupporting

confidence: 81%

“…When the diameter of pulse shaper increased, there was no change in the stable/maximum stress strength, but the rising time and dispersion of the incident wave have been increased and suppressed better, respectively, which were in contradiction to references listed in references (Naghdabadi et al 2012).…”

Section: Experimental and Theoretical Analysis Of Incident Wavecontrasting

confidence: 74%

“…Meanwhile, the effect of wave shaping by changing the dimensions of the pulse shaper has also been discussed (Song et al 2007;Sedighi et al 2010). The recent work by Naghdabadi et al (2012) show that by reducing the velocity of the striker bar could increase the rising time and suppress the dispersion of incident wave. However, their work also claim that by reducing the diameter of the pulse shaper could achieve the same effect, which is conflict with the conclusions of our theoretical analysis and experimental results.…”

Section: Latin American Journal Of Solids and Structures 13 (2016) 39mentioning

confidence: 99%

“…Therefore, when a pulse shaper has been used in SHPB, the length of incident bar should be more than twice that of the striker bar. However, the references (Naghdabadi et al 2012) attributes the contribution of the waveform changes exclusively to the pulse shaper and not influenced by the bars. Therefore, an experimental and theoretical analysis has been conducted.…”

Section: Composition and Mechanism Of Incident Wavementioning

confidence: 99%

See 4 more Smart Citations

Pulse Shaper and Dynamic Compressive Property Investigation on Ice Using a Large-Sized Modified Split Hopkinson Pressure Bar

Song

Wang

Kim³

et al. 2016

Lat. Am. j. solids struct.

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The dynamic compressive behavior of ice is investigated using a large-sized (37 mm in diameter) modified aluminum split Hopkinson pressure bar (SHPB) with pulse shaper at the strain rate from 500 s -1 to 1200 s -1 . A series of relatively stable experimental results of dynamic compressive strength versus strain rate and a linear fitting curve have been obtained by controlling data scatter within 25%. The composition of incident wave has been discussed. The effects of pulse shaper diameter and velocity of striker bar have been tested. The properties and principles of incident wave in different stage has been elaborated when using pulse shaper. A theoretical analysis of pulse shaper and bar size effects on the rising time of incident wave has been conducted. Results show the thickness of pulse shaper is proportional to the rising time. Enlarging the diameter and reducing the velocity of the striker bar could increase the rising time and suppress the dispersion. The diameter and wave impedance of bars also contribute to the rising time.

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Section: Experimental and Theoretical Analysis Of Incident Wavesupporting

confidence: 83%

Section: Experimental and Theoretical Analysis Of Incident Wavesupporting

confidence: 81%

Section: Experimental and Theoretical Analysis Of Incident Wavecontrasting

confidence: 74%

Section: Latin American Journal Of Solids and Structures 13 (2016) 39mentioning

confidence: 99%

Section: Composition and Mechanism Of Incident Wavementioning

confidence: 99%

See 3 more Smart Citations

Pulse Shaper and Dynamic Compressive Property Investigation on Ice Using a Large-Sized Modified Split Hopkinson Pressure Bar

Song

Wang

Kim³

et al. 2016

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

show abstract

Ballistic impact performance of composite laminates based on high‐density polyethylene/montmorillonite nanocomposite and Aramide fiber

et al. 2021

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Nanostructured thermoplastic consisting of high-density polyethylene (HDPE) modified with exfoliated montmorillonite (MMT) was successfully used as the matrix for the development of composite for ballistic applications. The effect of HDPE and HDPE/MMT as the matrix on the mechanical and ballistic properties of para-aramid plain-woven fabric-based composites was compared with the commercial composite constituted by polyvinyl-butyral-phenolic resin as the matrix. The dynamic compressive tests using split Hopkinson pressure bar equipment revealed a remarkable increase of maximum compression strength, outstanding dynamic compressive response, and superior tenacity for the composite containing HDPE/MMT as the matrix. Moreover, the ballistic limit of the HDPE/MMT-based composite was the highest one. Mechanical failures indicated that this matrix was able to interact with a greater fiber volume and was responsible for improving the ballistic impact energy absorption. Thus, the use of MMT in thermoplastic matrix may be considered a promising ballistic solution due to the possibility of combining lightweight and ballistic resistance.

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3D meso‐scale numerical model and dynamic mechanical behavior of reinforced concrete

Deng,

Li,

et al. 2023

Structural Concrete

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Based on the modeling method of 3D meso‐scale finite element model of plain concrete, a 3D meso‐scale finite element model of reinforced concrete is established considering the interface transition zone between reinforcement frame and mortar, and the reliability of the established meso‐scale finite element model is verified by split Hopkinson pressure bar (SHPB) test results. The failure process of reinforced concrete specimens under typical impact velocity and the influence of interface effect on specimen strength are analyzed by numerical simulation. The research results show that the 3D meso‐scale model of reinforced concrete considers the meso‐scale structure of reinforced concrete more realistically, and can better reflect the damage change process inside the material in the dynamic loading process. The weak interface effect caused by reinforcement can lead to the slight weakening of the dynamic strength of the material, but at the same time the weak interface effect of the reinforcement is also the main reason why the residual form of reinforced concrete remains well aligned with the shape of the reinforcement frame after the failure.

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Experimental and numerical investigation of pulse-shaped split Hopkinson pressure bar test

Cited by 68 publications

References 17 publications

Pulse Shaper and Dynamic Compressive Property Investigation on Ice Using a Large-Sized Modified Split Hopkinson Pressure Bar

Pulse Shaper and Dynamic Compressive Property Investigation on Ice Using a Large-Sized Modified Split Hopkinson Pressure Bar

Ballistic impact performance of composite laminates based on high‐density polyethylene/montmorillonite nanocomposite and Aramide fiber

3D meso‐scale numerical model and dynamic mechanical behavior of reinforced concrete

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