Numerical Modeling of Exit-Ply Delamination During Drilling of CFRPs Considering Thermal Effects

Kubher, S and Gururaja, S and Zitoune, R (2019) Numerical Modeling of Exit-Ply Delamination During Drilling of CFRPs Considering Thermal Effects. In: International Journal for Computational Methods in Engineering Science and Mechanics, 19 (6). pp. 383-389.

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Abstract

A finite element (FE) model for exit-ply delamination during drilling carbon fiber reinforced polymers (CFRPs) laminates is presented. The current FE model is developed to predict critical thrust force at the onset of delamination for 1 and 2 plies under the twist drill for various cutting temperatures. The interface behavior for delamination onset is modeled using surface based cohesive zone model (CZM). The numerical predictions for critical thrust force are compared with experimental thrust forces for various number of plies under the twist drill over a range of cutting temperature. Thrust force predictions were found to match with experimental data.

Item Type:	Journal Article
Publication:	International Journal for Computational Methods in Engineering Science and Mechanics
Publisher:	Bellwether Publishing, Ltd.
Additional Information:	The copyright of this article belongs to the Bellwether Publishing, Ltd.
Keywords:	Carbon fiber reinforced plastics; Cutting; Drilling machines (machine tools); Drills; Forecasting, Carbon fiber reinforced polymer; Cohesive zone model; Critical thrust force; Cutting temperature; Delamination damages; Interface behavior; Numerical predictions; Push-out, Infill drilling
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	03 Aug 2022 09:49
Last Modified:	03 Aug 2022 09:49
URI:	https://eprints.iisc.ac.in/id/eprint/75460

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