On the applicability of simple shapes of delaminations in buckling analyses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F11%3APU83441" target="_blank" >RIV/00216305:26210/11:PU83441 - 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

On the applicability of simple shapes of delaminations in buckling analyses

Popis výsledku v původním jazyce

The possibility to accurately analyse the buckling behaviour of delaminated plates utilising simplified circular or elliptic representations of delaminations with irregular shapes was investigated. The smallest enclosing circle and smallest enclosing ellipse algorithms were used to obtain the simplified representations of impact induced delaminations. Finite element postbuckling simulations of compressed plates were than performed and the responses of the plates with irregular delaminations and corresponding circular and elliptic delaminations were compared in terms of buckling loads and maximum energy release rate values found along the delamination boundaries. It was found, that utilisation of the circular representation of the true shape of delaminations could lead to highly inaccurate results and therefore elliptic representation should be used instead. However, for an accurate analyses of buckling and postbuckling behaviour of delaminated structures it seems to be inevitable to us

Název v anglickém jazyce

On the applicability of simple shapes of delaminations in buckling analyses

Popis výsledku anglicky

The possibility to accurately analyse the buckling behaviour of delaminated plates utilising simplified circular or elliptic representations of delaminations with irregular shapes was investigated. The smallest enclosing circle and smallest enclosing ellipse algorithms were used to obtain the simplified representations of impact induced delaminations. Finite element postbuckling simulations of compressed plates were than performed and the responses of the plates with irregular delaminations and corresponding circular and elliptic delaminations were compared in terms of buckling loads and maximum energy release rate values found along the delamination boundaries. It was found, that utilisation of the circular representation of the true shape of delaminations could lead to highly inaccurate results and therefore elliptic representation should be used instead. However, for an accurate analyses of buckling and postbuckling behaviour of delaminated structures it seems to be inevitable to us

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

COMPOSITES PART B-ENGINEERING

ISSN

1359-8368

e-ISSN

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Svazek periodika

42

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000287901100022

EID výsledku v databázi Scopus

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