Experimental determination of polymer material characteristics having regard to the FEM computational analysis
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU104712" target="_blank" >RIV/00216305:26210/13:PU104712 - 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
Experimental determination of polymer material characteristics having regard to the FEM computational analysis
Popis výsledku v původním jazyce
Unfilled polymer materials exhibit a high ductility, which is moreover located in small neck area. Material producers deliver usually the yield strain and break (ultimate) strain values calculated on the basis of material tensile tests for normalized active sample length. Application of so defined material characteristics in the case of Finite Element Method (FEM) analyses of real constructions made of TSCP (typical semi-crystal polymer) led to significantly conservative (smaller) values of limit (ultimate) loads compared with the measured ones. To obtain more precise results the material characteristics used should be in correlation with the size of finite elements. A special experimental method making use of high-speed camera has been developed to determine the strain in defined small area of local strain concentration (neck area) on the specimen during tensile test. The true stress-strain curve till the sample rupture is here calculated and break strain is determined. Application of
Název v anglickém jazyce
Experimental determination of polymer material characteristics having regard to the FEM computational analysis
Popis výsledku anglicky
Unfilled polymer materials exhibit a high ductility, which is moreover located in small neck area. Material producers deliver usually the yield strain and break (ultimate) strain values calculated on the basis of material tensile tests for normalized active sample length. Application of so defined material characteristics in the case of Finite Element Method (FEM) analyses of real constructions made of TSCP (typical semi-crystal polymer) led to significantly conservative (smaller) values of limit (ultimate) loads compared with the measured ones. To obtain more precise results the material characteristics used should be in correlation with the size of finite elements. A special experimental method making use of high-speed camera has been developed to determine the strain in defined small area of local strain concentration (neck area) on the specimen during tensile test. The true stress-strain curve till the sample rupture is here calculated and break strain is determined. Application of
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
JR - Ostatní strojírenství
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
ENGINEERING MECHANICS 2013
ISBN
978-80-87012-46-8
ISSN
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e-ISSN
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Počet stran výsledku
2
Strana od-do
31-32
Název nakladatele
Institute of Thermomechanics, Academy os Sciences od the Czech Republic, v. v. i., Prague
Místo vydání
Praha
Místo konání akce
Svratka
Datum konání akce
13. 5. 2013
Typ akce podle státní příslušnosti
EUR - Evropská akce
Kód UT WoS článku
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