Publication detail

On the applicability of simple shapes of delaminations in buckling analyses

OBDRŽÁLEK, V. VRBKA, J.

Original Title

On the applicability of simple shapes of delaminations in buckling analyses

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

OBDRŽÁLEK, V.; VRBKA, J.

RIV year

2011

Released

4. 4. 2011

Publisher

Elsevier Ltd.

Location

Oxford

ISBN

1359-8368

Periodical

COMPOSITES PART B-ENGINEERING

Year of study

42

Number

3

State

United Kingdom of Great Britain and Northern Ireland

Pages from

538

Pages to

545

Pages count

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"
}