Design tool to predict the open-hole failure strength of composite laminates subjected to in-plane loads

A design tool based on Whitney-Nuismer model is proposed to predict the failure strength of open-hole composite plates subjected to in-plane loads, both tensile and compressive. One of the limitations of this model is the use of characteristic distances, which have to be estimated, and which are mos...

Full description

Saved in:
Bibliographic Details
Published in:Composite structures 2020-04, Vol.238, p.111970, Article 111970
Main Authors: Moure, M.M., Herrero-Cuenca, J., García-Castillo, S.K., Barbero, Enrique
Format: Article
Language:English
Subjects:
Non-dimensional model
Notched compression
Notched tension
Open hole
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A design tool based on Whitney-Nuismer model is proposed to predict the failure strength of open-hole composite plates subjected to in-plane loads, both tensile and compressive. One of the limitations of this model is the use of characteristic distances, which have to be estimated, and which are mostly considered constant material properties. In this work, it is demonstrated that these characteristic distances are a function of the plate geometry and are not a material property. Different analytical expressions are proposed to estimate the characteristic distances by using the results of only three experimental tests. This approach enables an accurate and fast estimation of the failure strength when the parameters of the plate are modified without using numerical simulations that require a longer time to be carried out.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2020.111970