High strain rate charateristics of the advanced blast energy absorbers. Journal of chemical, nuclear, metalurgical and materials engineering
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F14%3A22945S08" target="_blank" >RIV/26232511:_____/14:22945S08 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
High strain rate charateristics of the advanced blast energy absorbers. Journal of chemical, nuclear, metalurgical and materials engineering
Popis výsledku v původním jazyce
The main aim of the presented experiments is to improve behaviour of sandwich structures under dynamic loading, such as crash or explosion. Several cellular materials are widely used as core of the sandwich structures and their properties influence the response of the entire element under impact load. To optimize their performance requires the characterisation of the core material behaviour at high strain rates and identification of the underlying mechanism. This work presents the study of high strain-rate characteristics of a specific porous lightweight blast energy absorbing foam using a Split Hopkinson Pressure Bar (SHPB) technique adapted to perform tests on low strength materials. Two different velocities, 15 and 30 m.s-1 were used to determine the strain sensitivity of the material. Foams were designed using two types of porous lightweight spherical raw materials with diameters of 30-100 ?m, combined with polymer matrix. Cylindrical specimens with diameter of 10 mm and length of
Název v anglickém jazyce
High strain rate charateristics of the advanced blast energy absorbers. Journal of chemical, nuclear, metalurgical and materials engineering
Popis výsledku anglicky
The main aim of the presented experiments is to improve behaviour of sandwich structures under dynamic loading, such as crash or explosion. Several cellular materials are widely used as core of the sandwich structures and their properties influence the response of the entire element under impact load. To optimize their performance requires the characterisation of the core material behaviour at high strain rates and identification of the underlying mechanism. This work presents the study of high strain-rate characteristics of a specific porous lightweight blast energy absorbing foam using a Split Hopkinson Pressure Bar (SHPB) technique adapted to perform tests on low strength materials. Two different velocities, 15 and 30 m.s-1 were used to determine the strain sensitivity of the material. Foams were designed using two types of porous lightweight spherical raw materials with diameters of 30-100 ?m, combined with polymer matrix. Cylindrical specimens with diameter of 10 mm and length of
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
JJ - Ostatní materiály
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GA13-22945S" target="_blank" >GA13-22945S: Výzkum pokročilých konstrukcí pro absorpci rázové energie a jejich chování při vysokých rychlostech deformace</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů