Abstract
Drilling in woven fiber-reinforced plastics is a well-known practice in modern-day manufacturing. The high fracture toughness of woven fiber-based composites over unidirectional counterparts is increasing demand in aviation and electronics industries. Hence, failure of these materials at harsh environments is a matter of concern. Very few numerical studies on drilling of these composites have been carried out; hence, the present scope may be considered as a trial de novo. Delamination was studied in the present work at different feed-speed combinations. Drilling responses were estimated using finite element as a numerical simulation tool. An equivalent elastic macromechanical model was assumed for the woven composite workpiece. A 3D drill bit was modeled using commercial CAD package Pro-Engineer and Ansys Autodyn was used as the solver environment. The simulation and validation experiments were carried out at planned feed-speed combinations. The effect of process parameters on exit and entry delamination is also documented. The thrust determined by finite element techniques showed good prediction with the experimental results. © Springer-Verlag London Limited 2011.
Original language | English |
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Pages (from-to) | 267-278 |
Number of pages | 11 |
Journal | International Journal of Advanced Manufacturing Technology |
Volume | 58 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - Jan 2012 |
Keywords
- Delamination
- Drilling
- Glass fiber-reinforced polymer (GFRP)