Numerical Modeling of a Split Hopkinson Pressure Bar Test

Ahmad R. Aljohani, Ramzi Othman and Khalid H. Almitani
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Ahmad R. Aljohani: King Abdulaziz University, Saudi Arabia
Ramzi Othman: King Abdulaziz University, Saudi Arabia
Khalid H. Almitani: King Abdulaziz University, Saudi Arabia

European Journal of Engineering and Technology Research, 2021, vol. 6, issue 3, 53-57

Abstract: In this work, a one-dimensional simplified model was developed to predict stress, strain, and strain-rate in high strain rates Hopkinson pressure bar experiments, namely, between 500-5000/s. To this goal, a one-dimensional model for Hokinson bar tests was developed based on analyses of wave propagation in bars and assuming the specimen is under equilibrium during the test. The numerical tool implemented using Matlab and validated regarding experimental data. This new model will be very helpful in designing the specimens for split Hopkinson bar tests and also in the interpretation of the experimental raw data.

Keywords: Hopkinson bar test; High strain rate; Specimen design; One-dimensional wave propagation (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:6:y:2021:i:3:id:62370

DOI: 10.24018/ejeng.2021.6.3.2370

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