Title: Orthogonal machining of UD-CFRP composites

Authors: G. Venu Gopala Rao, Puneet Mahajan, Naresh Bhatnagar

Addresses: Department of Applied Mechanics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India. ' Department of Applied Mechanics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India. ' Department of Mechanical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India

Abstract: Orthogonal machining of unidirectional carbon fibre reinforced plastic composites is simulated using finite element method based on experiments. The cutting forces during orthogonal machining were studied both experimentally and numerically for a range of fibre orientations, depths of cut and tool rake angles. The failure of fibre is found to be a combination of bending and crushing for higher fibre orientation, while the bending effect becomes more significant for lower fibre orientation. The cutting forces mainly varies with fibre orientation and depth of cut. The cutting and thrust forces predicted by FE simulations matched well with the experimental results.

Keywords: composites; cohesive zone model; finite element method; FEM; cutting forces; orthogonal machining; carbon fibre reinforced plastic; CFRP composites; simulation; fibre orientation; depth of cut; tool rake angle.

DOI: 10.1504/IJMPT.2008.018979

International Journal of Materials and Product Technology, 2008 Vol.32 No.2/3, pp.168 - 187

Published online: 27 Jun 2008 *

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