Imperial College London

Dr Tomas Katafiasz

Faculty of EngineeringDepartment of Aeronautics

Research Associate
 
 
 
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Contact

 

tomas.katafiasz11 Website

 
 
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Location

 

City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Katafiasz:2021:10.1016/j.compositesa.2020.106241,
author = {Katafiasz, T and Greenhalgh, ES and Allegri, G and Pinho, ST and Robinson, P},
doi = {10.1016/j.compositesa.2020.106241},
journal = {Composites Part A: Applied Science and Manufacturing},
title = {The influence of temperature and moisture on the mode I fracture toughness and associated fracture morphology of a highly toughened aerospace CFRP},
url = {http://dx.doi.org/10.1016/j.compositesa.2020.106241},
volume = {142},
year = {2021}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - This paper addresses the characterisation of the mode I interlaminar fracture toughness of a carbon fibre/epoxy composite material, toughened with thermoplastic particles in the ply interlayers. The characterisation is undertaken at −55 °C, 19 °C, and 90 °C, on both dry and fully moisture saturated coupons. Fractographic observations of the delamination surfaces allows identification of the failure mechanisms. The mode I propagation fracture toughness tested at wet/90 °C exhibits a 176% increase compared to the dry/19 °C specimens, due to enhanced plastic deformation of the interlayers and more prominent fibre bridging. Moisture-saturated coupons tested at −55 °C suffered a 57% reduction of mode I fracture toughness compared to those under dry/19 °C conditions. This is due to the dis-bond and consequent plucking of the thermoplastic particles from the surrounding matrix. This observation points to the fact that wet/cold conditions may represent the worst-case scenario for the interlaminar fracture performance of composite systems toughened with thermoplastic interleaves.
AU - Katafiasz,T
AU - Greenhalgh,ES
AU - Allegri,G
AU - Pinho,ST
AU - Robinson,P
DO - 10.1016/j.compositesa.2020.106241
PY - 2021///
SN - 1359-835X
TI - The influence of temperature and moisture on the mode I fracture toughness and associated fracture morphology of a highly toughened aerospace CFRP
T2 - Composites Part A: Applied Science and Manufacturing
UR - http://dx.doi.org/10.1016/j.compositesa.2020.106241
UR - http://hdl.handle.net/10044/1/86134
VL - 142
ER -