Detail publikačního výsledku

On the applicability of simple shapes of delaminations in buckling analyses

OBDRŽÁLEK, V.; VRBKA, J.

Originální název

On the applicability of simple shapes of delaminations in buckling analyses

Anglický název

On the applicability of simple shapes of delaminations in buckling analyses

Druh

Článek WoS

Originální abstrakt

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 use as precise representation of the shape of delaminations as possible.

Anglický abstrakt

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 use as precise representation of the shape of delaminations as possible.

Klíčová slova

Fibre-metal laminate, plates, buckling, delaminations, finite element analysis

Klíčová slova v angličtině

Fibre-metal laminate, plates, buckling, delaminations, finite element analysis

Autoři

OBDRŽÁLEK, V.; VRBKA, J.

Rok RIV

2011

Vydáno

04.04.2011

Nakladatel

Elsevier Ltd.

Místo

Oxford

ISSN

1359-8368

Periodikum

COMPOSITES PART B-ENGINEERING

Svazek

42

Číslo

3

Stát

Spojené království Velké Británie a Severního Irska

Strany od

538

Strany do

545

Strany počet

8

BibTex

@article{BUT48611,
  author="Vít {Obdržálek} and Jan {Vrbka}",
  title="On the applicability of simple shapes of delaminations in buckling analyses",
  journal="COMPOSITES PART B-ENGINEERING",
  year="2011",
  volume="42",
  number="3",
  pages="538--545",
  issn="1359-8368"
}