Characterizing the Effect of Delamination Defect by Mode I Delamination Test

2008 ◽  
pp. 84-84-20 ◽  
Author(s):  
FX de Charentenay ◽  
JM Harry ◽  
YJ Prel ◽  
ML Benzeggagh
Keyword(s):  
Mode I ◽  
Mode I Delamination

scholarly journals Experimental assessment of Fully-Uncoupled Multi-Directional specimens for mode I delamination tests

2020 ◽  
Vol 200 ◽  
pp. 108421
Author(s):  
Torquato Garulli ◽  
Anita Catapano ◽  
Daniele Fanteria ◽  
Wenyi Huang ◽  
Julien Jumel ◽  
...  
Keyword(s):  
Mode I ◽  
Experimental Assessment ◽  
Mode I Delamination

Use of an elasto-plastic model and strain measurements of embedded fibre Bragg grating sensors to detect Mode I delamination crack propagation in woven cloth (0/90) composite materials

2017 ◽  
Vol 17 (2) ◽  
pp. 363-378 ◽  
Author(s):  
Ayad Arab Kakei ◽  
Mainul Islam ◽  
Jinsong Leng ◽  
Jayantha A Epaarachchi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Crack Front ◽  
Double Cantilever Beam ◽  
Bragg Grating ◽  
Mode I ◽  
Fibre Bragg Grating ◽  
Element Analysis ◽  
Plastic Model ◽  
Mode I Delamination

Mode I fracture analysis being employed to study delamination damage in fibre-reinforced composite structures under in-plane and out-of-plane load applications. However, due to the significantly low yield strength of the matrix material and the infinitesimal thickness of the interface matrix layer, the actual delamination process can be assumed as a partially plastic process (elasto-plastic). A simple elasto-plastic model based on the strain field in the vicinity of the crack front was developed for Mode I crack propagation. In this study, a double cantilever beam experiment has been performed to study the proposed process using a 0/90-glass woven cloth sample. A fibre Bragg grating sensor has embedded closer to the delamination to measure the strain at the vicinity of the crack front. Strain energy release rate was calculated according to ASTM D5528. The model predictions were comparable with the calculated values according to ASTM D5528. Subsequently, a finite element analysis on Abaqus was performed using ‘Cohesive Elements’ to study the proposed elasto-plastic behaviour. The finite element analysis results have shown a very good correlation with double cantilever beam experimental results, and therefore, it can be concluded that Mode I delamination process of an fibre-reinforced polymer composite can be monitored successfully using an integral approach of fibre Bragg grating sensors measurements and the prediction of a newly proposed elasto-plastic model for Mode I delamination process.

scholarly journals Acoustic Emission Applied to Failure Analysis of Commingled Yarn GF/PP Composites in Transverse Tension and Mode I Delamination

2003 ◽  
Vol 12 (5) ◽  
pp. 096369350301200 ◽  
Author(s):  
D. Lariviere ◽  
P. Krawczak ◽  
C. Tiberi ◽  
P. Lucas
Keyword(s):  
Acoustic Emission ◽  
Thermoplastic Composites ◽  
Mode I ◽  
Fibre Reinforcement ◽  
Transverse Tension ◽  
Commingled Yarn ◽  
The Matrix ◽  
Pp Composites ◽  
Loading Modes ◽  
Mode I Delamination

This work aims to analyse the influence of the fibre/matrix interface on the acoustic response of commingled yarn thermoplastic composites submitted to transverse tension and mode I fracture mechanics loading. For this purpose, different interfacial qualities were obtained by modification of the fibre reinforcement sizing and the matrix coupling. The acoustic emission rate (number of acoustic events emitted per time unit) has appeared suitable to quantify the damage involved by the mechanical loading according to the interfacial quality. The comparison of the acoustic emission obtained for the two loading modes has shown that, although the amplitude range [59-66dB] is characteristic of interfacial debondings in transverse tension, it is no more the case for a mode I delamination test for these commingled GF/PP composites.

Influence of the Loading System on Mode I Delamination Results in Carbon-Epoxy Composites

2011 ◽  
Vol 38 (1) ◽  
pp. 53-58 ◽  
Author(s):  
J. Viña ◽  
A. Argüelles ◽  
A. López ◽  
V. Mollón ◽  
J. Bonhomme
Keyword(s):  
Epoxy Composites ◽  
Mode I ◽  
Loading System ◽  
Mode I Delamination
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