Numerical modelling and analytical comparison of delamination during cryogenic drilling of cfrp

Arunachalam S.S. Balan, Chidambaram Kannan*, Kunj Jain, Sohini Chakraborty, Siddharth Joshi, Krishna Rawat, Walaa F. Alsanie, Vijay Kumar Thakur

*Corresponding author for this work

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Abstract

Carbon-Fibre-Reinforced Polymers (CFRPs) have seen a steady rise in modern industrial applications due to their high strength-to-weight ratio and corrosion resistance. However, their potential is being hindered by delamination which is induced on them during machining operations. This has led to the adoption of new and innovative techniques like cryogenic-assisted machining which could potentially help reduce delamination. This study is aimed at investigating the effect of cryogenic conditions on achieving better hole quality with reduced delamination. In this paper, the numerical analysis of the drilling of CFRP composites is presented. Drilling tests were performed experimentally for validation purposes. The effects of cooling conditions and their subsequent effect on the thrust force and delamination were evaluated using ABAQUS/CAE. The numerical models and experimental results both demonstrated a significant reduction in the delamination factor in CFRP under cryogenic drilling conditions.

Original languageEnglish
Article number3995
JournalPolymers
Volume13
Issue number22
Early online date19 Nov 2021
DOIs
Publication statusFirst published - 19 Nov 2021

Keywords

  • ABAQUS/CAE
  • CFRP
  • Cryogenic drilling
  • Delamination
  • Hole-quality

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