Mechanical aspects related to fibre fracture in ARALL®2 laminates

Author(s):  
R. Marissen
Keyword(s):  
2010 ◽  
Vol 434-435 ◽  
pp. 57-60 ◽  
Author(s):  
Figen Kaya

In this work damage micro-mechanisms of two different types of fibre reinforced composites are investigated by acoustic emission, AE. Ceramic based oxide fibre reinforced mullite matrix composite and metallic based SiC fibre reinforced titanium matrix composites exhibit different fracture mechanisms during loading and AE technique could pinpoint these damage mechanisms based on the AE responses detected simultaneously. The results show that in a ceramic matrix composite, the identification of fibre fracture and matrix cracking requires careful analysis of the AE data as both fibres and matrix break in brittle manner. Whereas the separation of fibre fracture from the ductile tearing of matrix ligaments could be easier in metallic based composites, such as titanium matrix composites.


Sensors ◽  
2016 ◽  
Vol 16 (5) ◽  
pp. 615 ◽  
Author(s):  
Shoaib Malik ◽  
Liwei Wang ◽  
Paul Curtis ◽  
Gerard Fernando

1997 ◽  
Vol 28 (4) ◽  
pp. 347-353 ◽  
Author(s):  
J.M. Martínez-Esnaola ◽  
A. Martín-Meizoso ◽  
A.M. Daniel ◽  
J.M. Sánchez ◽  
M.R. Elizalde ◽  
...  

1986 ◽  
Vol 5 (9) ◽  
pp. 903-904 ◽  
Author(s):  
D. A. Clarke ◽  
M. G. Bader

2002 ◽  
pp. 27-56 ◽  
Author(s):  
M. Elices ◽  
J. Llorca
Keyword(s):  

Author(s):  
J.W.S. Hearle ◽  
B. Lomas ◽  
W.D. Cooke
Keyword(s):  

2015 ◽  
Vol 15 (2) ◽  
pp. 30-35 ◽  
Author(s):  
M. Landowski ◽  
K. Imielińska

Abstract Impact behaviour of glass fibre /epoxy composites with nano- SiO2 modified resin was studied in terms of low velocity impact after water exposure. Nanocomposites with 1%, 2%, 3% 5% 7% nano-SiO2 (Nanopox- Evonic) were investigated. Peak impact load and impact damage area as a function of nanoparticle contents were compared for dry specimens and for samples exposed to water (0.7 %wt. 1.7% water absorbed) at 1J, 2J 3J impact energies. For unmodified composite peak force was higher than for 3% modified specimens and higher for dry specimens than those exposed to water. Impact damage areas were plotted as a function of water contents for modified and unmodified samples. Failure modes were illustrated using SEM micrographs. Numeropus matrix cracks were the dominating failure mode in dry speciemens both unmodified and the modified. Fibre fracture was observed at 3J impact energy in all dry unmodified samples, however water exposure prevented early fibre fracture in nanocomposites. The proposed energy absorption mechanism is nanoparticles debonding.


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