Numerical analysis of layered fiber composites accounting for the onset of delamination

Since delamination is a major failure mode of layered composites, predicting its initiation is essential for the design of composite structures. Evaluating delamination onset criteria based on stress–strength relations requires an accurate representation of the through-the-thickness stress distribut...

Full description

Saved in:
Bibliographic Details
Published in:Advances in engineering software (1992) 2015-02, Vol.80, p.4-11
Main Authors: Simon, Jaan-Willem, Stier, Bertram, Reese, Stefanie
Format: Article
Language:English
Subjects:
Anisotropy
Computer programs
Delaminating
Delamination
Enhanced strain formulation
Fiber composites
Fiber-reinforced composite
Layered composite
Mathematical models
Reduced integration
Solid-shell concept
Thin walled shells
Three dimensional
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:Since delamination is a major failure mode of layered composites, predicting its initiation is essential for the design of composite structures. Evaluating delamination onset criteria based on stress–strength relations requires an accurate representation of the through-the-thickness stress distribution, which is delicate for thin shell-like structures. Therefore, in this paper, a solid-shell finite element is utilized, which allows for incorporating a fully three-dimensional, anisotropic, micro-mechanically motivated material model, still being suited for application to thin structures. Moreover, locking phenomena are cured by using both the enhanced assumed strain (EAS) and the assumed natural strain (ANS) concept, and numerical efficiency is ensured through reduced integration.
ISSN:0965-9978
DOI:10.1016/j.advengsoft.2014.09.022