Numerical simulation of mixed-mode progressive delamination in composite materials

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

Authors

P. P. Camanho (Author) FEUP; C. G. Dávila (Author) Other; M. F. de Moura (Author) FEUP

Journal

Title: Journal of Composite Materials

Vol. 37 No. 16

Pages: 1415-1438

ISSN: 0021-9983

Publisher: SAGE

Indexing

ISI Web of Knowledge - 246 Citations

Scopus - 1245 Citations

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Other information

Authenticus ID: P-00F-H0Z

DOI: 10.1177/0021998303034505

Abstract (EN): A new decohesion element with the capability of dealing with crack propagation under mixed-mode loading is proposed and demonstrated. The element is used at the interface between solid finite elements to model the initiation and non-self-similar growth of delaminations in composite materials. A single relative displacement-based damage parameter is applied in a softening law to track the damage state of the interface and to prevent the restoration of the cohesive state during unloading. The softening law is applied in the three-parameter Benzeggagh-Kenane mode interaction criterion to predict mixed-mode delamination propagation. To demonstrate the accuracy of the predictions, steady-state delamination growth is simulated for quasi-static loading of various single mode and mixed-mode delamination test specimens and the results are compared with experimental data.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 24