Numerical prediction of delamination onset in carbon/epoxy composites drilling

• Type: Article in International Scientific Journal
• Date: 2008

Authors

Durao, LMP (Author) Other; de Moura, MFSF (Author) FEUP; Marques, AT (Author) FEUP

Journal

Title: Engineering Fracture Mechanics

Vol. 75

Pages: 2767-2778

ISSN: 0013-7944

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 45 Citations

Scopus - 68 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-003-YQY

DOI: 10.1016/j.engfracmech.2007.03.009

Abstract (EN): Despite the fact that their physical properties make them art attractive family of materials, composites machining can cause several damage modes such as delamination, fibre pull-out, thermal degradation, and others. Minimization of axial thrust force during drilling reduces the probability of delamination onset, as it has been demonstrated by analytical models based on linear elastic fracture mechanics (LEFM). A finite element model considering solid elements of the ABAQUS (R) software library and interface elements including a cohesive damage model was developed in order to simulate thrust forces and delamination onset during drilling. Thrust force results for delamination onset are compared with existing analytical models. (c) 2008 Published by Elsevier Ltd.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12