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Understanding Damage Mechanisms During Machining of CFRP Composites Using Finite Element Analysis
Journal
Lecture Notes in Mechanical Engineering
ISSN
21954356
Date Issued
2023-01-01
Author(s)
Akolkar, Mukul
Divse, Vishwas
Joshi, Suhas S.
Abstract
A 2D finite element model of orthogonal machining based on the Hashin’s failure criteria is developed to understand the damage initiation and chip formation mechanisms during machining of carbon fibre reinforced plastic (CFRP) composites. A Taguchi design is employed based on the L16B orthogonal array to analyse the effect of five factors, i.e. fibre orientation, tool rake angle, cutting speed, feed and depth of cut on machining forces. The proposed model is computationally efficient, as it contains less than 1000 nodes. It is found that CFRP plies generally fail in matrix-dominated modes during machining. However, the extent and direction of failure largely vary with the fibre orientation. It was evident that the forces depend mainly on the fibre orientation and depth of cut as compared to other machining parameters.
Subjects