Analysis of crack propagation in double cantilever beam tests of multidirectional laminates

• Type: Article in International Scientific Journal
• Date: 2003

Authors

A. B. de Morais (Author) Other; Marcelo F. de Moura (Author) FEUP; J. P. M. Gonçalves (Author) Other; Pedro P. Camanho (Author) FEUP

Journal

Title: Mechanics of Materials

Vol. 35 No. 7

Pages: 641-652

ISSN: 0167-6636

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 70 Citations

Scopus - 78 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-000-G4W

DOI: 10.1016/s0167-6636(02)00289-2

Abstract (EN): This paper presents numerical analyses of crack propagation in double cantilever beam (DCB) tests of multidirectional laminates. Three-dimensional finite element models were used for application of the virtual crack closure technique and for simulation of crack growth with a progressive damage model. The analyses were concerned with three features that may affect the measurements of the mode I critical strain energy release rate G(lc): residual stresses, modemixity and curved delamination fronts. The results showed that the effects of those features could be minimised by a proper selection of specimen stacking sequences. The suitability of other DCB specimens proposed in the literature to avoid intralaminar damage and crack jumping was also evaluated.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12