Numerical model of open Hopkinson pressure bar and its utilisation for inverse numerical analysis of closed-cell aluminium foam

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F22%3A00363049" target="_blank" >RIV/68407700:21260/22:00363049 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.21495/51-2-285" target="_blank" >https://doi.org/10.21495/51-2-285</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21495/51-2-285" target="_blank" >10.21495/51-2-285</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical model of open Hopkinson pressure bar and its utilisation for inverse numerical analysis of closed-cell aluminium foam

Popis výsledku v původním jazyce

Research into the mechanical behaviour of lattice structures and metal foams at high strain rates using experiments based on a direct impact Hopkinson bar (DIHB) method has been recently proposed to overcome several limitations of the conventional split Hopkinson pressure bar (SHPB). Especially, the socalled open Hopkinson pressure bar (OHPB), a modification of DIHB with strain measurement points on both bars, has been proved to be a suitable experimental technique for testing of materials with low mechanical impedance. However, experimental testing is usually limited in terms of resources and, hence, it is convenient to employ numerical methods to predict the results of experiments and, if necessary, adjust the parameters of the experimental procedure based on the preceding numerical analysis of the problem. Developing a numerical model of the whole experimental set-up is, thus, a key method to achieve a reliable analysis. In this paper, we present a numerical model of an OHPB apparatus and demonstrate its suitability for inverse numerical simulations of the closed-cell aluminium foam.

Název v anglickém jazyce

Numerical model of open Hopkinson pressure bar and its utilisation for inverse numerical analysis of closed-cell aluminium foam

Popis výsledku anglicky

Research into the mechanical behaviour of lattice structures and metal foams at high strain rates using experiments based on a direct impact Hopkinson bar (DIHB) method has been recently proposed to overcome several limitations of the conventional split Hopkinson pressure bar (SHPB). Especially, the socalled open Hopkinson pressure bar (OHPB), a modification of DIHB with strain measurement points on both bars, has been proved to be a suitable experimental technique for testing of materials with low mechanical impedance. However, experimental testing is usually limited in terms of resources and, hence, it is convenient to employ numerical methods to predict the results of experiments and, if necessary, adjust the parameters of the experimental procedure based on the preceding numerical analysis of the problem. Developing a numerical model of the whole experimental set-up is, thus, a key method to achieve a reliable analysis. In this paper, we present a numerical model of an OHPB apparatus and demonstrate its suitability for inverse numerical simulations of the closed-cell aluminium foam.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

21100 - Other engineering and technologies

Projekt

<a href="/cs/project/GM22-18033M" target="_blank" >GM22-18033M: Dynamika rázů s využitím rychlé rentgenové radiografie a zábleskového rentgenového zdroje</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ENGINEERING MECHANICS 2022

ISBN

978-80-86246-51-2

ISSN

1805-8248

e-ISSN

1805-8256

Počet stran výsledku

4

Strana od-do

285-288

Název nakladatele

Institute of Theoretical and Applied Mechanics, AS CR

Místo vydání

Prague

Místo konání akce

Milovy

Datum konání akce

9. 5. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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