Numerical simulation of the effect of stitching on the delamination resistance of laminated composites subjected to low-velocity impact

FRANCESCONI, LUCA;AYMERICH, FRANCESCO
2017

Abstract

The paper illustrates the use of Finite Element (FE) analyses for the simulation of the effect of throughthickness stitching on the structural and damage response of composite laminates subjected to lowvelocity impact. An FE model based on the use of progressive damage schemes for modelling intralaminarand interlaminar damage and accounting for the bridging action of stitching threads was developed in the study. Individual stitches were modelled by solid elements inserted along the thickness of the laminate and connected to the adjacent layer elements through cohesive interface elements. The predictions of themodel were assessed by comparison with experimental data obtained by drop-weight impact tests on [03/903]S and [0/90]3S carbon/epoxy laminates. The numerical results were found to be in good agreement with the experimental observations in terms of force histories, force-deflection curves and internal damage induced by impact. In particular, the proposed model was able to correctly predict the effect of stitching on the damage response of the laminates at different impact energies and to capture the influence of the layup on the efficiency of stitching for improving the delamination resistance of the laminated samples
Inglese
159
110
120
11
http://www.sciencedirect.com/science/article/pii/S0263822316311515
Esperti anonimi
internazionale
scientifica
Impact; Composite laminates; Stitching; Damage; Finite Element analysis
no
Francesconi, Luca; Aymerich, Francesco
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
2
reserved
File in questo prodotto:
File Dimensione Formato  
Paper Composite Structures 2017.pdf

Solo gestori archivio

Descrizione: Articolo principale
Tipologia: versione editoriale
Dimensione 3.25 MB
Formato Adobe PDF
3.25 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Questionario e social

Condividi su:
Impostazioni cookie