A damage model for the simulation of delamination in advanced composites under variable-mode loading

• Type: Article in International Scientific Journal
• Date: 2006

Authors

A. Turon (Author) Other; P. P. Camanho (Author) FEUP; J. Costa (Author) Other; C. G. Dávila, (Author) Other

Journal

Title: Mechanics of Materials

Vol. 38 No. 11

Pages: 1072-1089

ISSN: 0167-6636

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 605 Citations

ISI Web of Science

Scopus - 819 Citations

COMPENDEX

INSPEC

Scientific classification

FOS: Engineering and technology > Materials engineering

CORDIS: Technological sciences > Engineering > Materials engineering

Other information

Authenticus ID: P-004-GDT

DOI: 10.1016/j.mechmat.2005.10.003

Abstract (EN): A thermodynamically consistent damage model is proposed for the simulation of progressive delamination in composite materials under variable-mode ratio. The model is formulated in the context of Damage Mechanics. A novel constitutive equation is developed to model the initiation and propagation of delamination. A delamination initiation criterion is proposed to assure that the formulation can account for changes in the loading mode in a thermodynamically consistent way. The formulation accounts for crack closure effects to avoid interfacial penetration of two adjacent layers after complete decohesion. The model is implemented in a finite element formulation, and the numerical predictions are compared with experimental results obtained in both composite test specimens and structural components.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 18