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

A. Arteiro; G. Catalanotti; J. Xavier; P. P. Camanho

doi:10.1016/j.compscitech.2013.09.003

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

A. Arteiro, G. Catalanotti, J. Xavier, P. P. Camanho^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

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Abstract

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.

Original language	English
Pages (from-to)	165-171
Number of pages	7
Journal	Composites Science and Technology
Volume	88
Early online date	18 Sept 2013
DOIs	https://doi.org/10.1016/j.compscitech.2013.09.003
Publication status	Published - 14 Nov 2013
Externally published	Yes

Keywords

A. Laminate
B. Fracture
C. Stress concentrations

ASJC Scopus subject areas

General Engineering
Ceramics and Composites

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Notched response of non-crimp fabric thin-ply laminates
Copyright 2013 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 1.5 MBLicence: CC BY-NC-ND

Cite this

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title = "Notched response of non-crimp fabric thin-ply laminates: Analysis methods",

abstract = "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.",

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AU - Arteiro, A.

AU - Catalanotti, G.

AU - Xavier, J.

AU - Camanho, P. P.

PY - 2013/11/14

Y1 - 2013/11/14

N2 - 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.

AB - 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.

KW - A. Laminate

KW - B. Fracture

KW - C. Stress concentrations

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SN - 0266-3538

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JO - Composites Science and Technology

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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