Notched response of non-crimp fabric thin-ply laminates: Analysis methods

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

Authors

Arteiro, A (Author) Other; Catalanotti, G (Author) Other; Xavier, J (Author) Other; Camanho, PP (Author) FEUP

Journal

Title: Composites Science and Technology

Vol. 88

Pages: 165-171

ISSN: 0266-3538

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 35 Citations

Scopus - 39 Citations

Other information

Authenticus ID: P-009-HFS

DOI: 10.1016/j.compscitech.2013.09.003

Abstract (EN): Analysis methods to predict the open-hole tensile and compressive response of thin-ply non-crimp fabric laminates are investigated in this paper. The point- and average-stress models and the Finite Fracture Mechanics model are used. It is shown that all models predict with reasonable accuracy the observed size effects in both tension and compression. The Finite Fracture Mechanics model, which requires two material properties (the unnotched strength and the fracture toughness) and does not need calibration from a baseline specimen, is used to predict the notched response of thin-ply non-crimp fabric laminates and of typical aerospace grade laminates based on unidirectional pre-impregnated plies. No substantial differences in notch sensitivity and inherent material/geometry brittleness is predicted.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7