Automated tool for simulation of standardized tests of cohesive interfaces

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43933031" target="_blank" >RIV/49777513:23520/17:43933031 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Automated tool for simulation of standardized tests of cohesive interfaces

Popis výsledku v původním jazyce

This work deals with determination of material parameters of cohesive interface using finite element models. Cohesive interface means conjunction of two deformable materials with relatively high stiffness compared to the interface. This conjunction or adhesive bonding determines overall strength of this system for certain loading types. In general, failure of such interface is caused by normal and shear stresses. Resulting failure is in fact a case of the crack growth and can be determined by parameters used in fracture mechanics. Strain energy release rate (SERR) G was selected as a basic parameter for evaluation of cohesive interface failure for this reason. Numerical analyses are performed in FE software Abaqus 6.14. Automated tool for identification of material parameters of two of the mentioned basic modes was created using Python 2.7. programing language. Material parameters of two adhesives, Hunstman Araldite 2021 and Gurit Spabond 345, and an inner layer of laminated composite are identified through secondary material parameters: stiffness k, displacement δ 0 (damage initiation) and δ c (failure determination).

Název v anglickém jazyce

Automated tool for simulation of standardized tests of cohesive interfaces

Popis výsledku anglicky

This work deals with determination of material parameters of cohesive interface using finite element models. Cohesive interface means conjunction of two deformable materials with relatively high stiffness compared to the interface. This conjunction or adhesive bonding determines overall strength of this system for certain loading types. In general, failure of such interface is caused by normal and shear stresses. Resulting failure is in fact a case of the crack growth and can be determined by parameters used in fracture mechanics. Strain energy release rate (SERR) G was selected as a basic parameter for evaluation of cohesive interface failure for this reason. Numerical analyses are performed in FE software Abaqus 6.14. Automated tool for identification of material parameters of two of the mentioned basic modes was created using Python 2.7. programing language. Material parameters of two adhesives, Hunstman Araldite 2021 and Gurit Spabond 345, and an inner layer of laminated composite are identified through secondary material parameters: stiffness k, displacement δ 0 (damage initiation) and δ c (failure determination).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/LO1506" target="_blank" >LO1506: Podpora udržitelnosti centra NTIS - Nové technologie pro informační společnost</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

EAN 2017 - 55th Conference on Experimental Stress Analysis 2017

ISBN

978-80-553-3167-6

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

9

Strana od-do

286-294

Název nakladatele

Technical University of Kosice

Místo vydání

Košice

Místo konání akce

Novy Smokovec; Slovakia

Datum konání akce

30. 5. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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