Influence of open holes on composites delamination induced by low velocity impact loads

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Amaro, AM (Author) Other; Reis, PNB (Author) Other; de Moura, MFSF (Author) FEUP; Neto, MA (Author) Other

Journal

Title: Composite Structures

Vol. 97

Pages: 239-244

ISSN: 0263-8223

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 14 Citations

ISI Web of Science

Scopus - 18 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-002-0C2

DOI: 10.1016/j.compstruct.2012.09.041

Abstract (EN): The aim of this study is to evaluate the influence of holes on delamination induced by low velocity impact on glass/epoxy composite laminates. Plates containing one and two holes were tested and the resulting damage was compared with the one of plate without hole. A finite element analysis including a cohesive mixed-mode damage model was performed in order to better understand the interaction between the resulting delamination and the presence of holes. It was verified that presence of holes increases the energy absorbed by damage as well as the delaminated areas. Delamination profile is also affected owing to alteration of interlaminar shear stress profiles which are the main responsible for delamination between different oriented layers.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6