Mechanical modelling and simulation of thrust force in drilling process in GFRP composite laminates: A novel system dynamics approach

B R N Murthy,Aravind Karthik,Nithesh Naik,S Narayan,Revati Borkhade,Vijay G.S,Nilakshman Sooriyaperakasam,Rubina Bahar

doi:10.1080/23311916.2019.1706981

B R N Murthy, Aravind Karthik + Show 6 more

Open Access

https://doi.org/10.1080/23311916.2019.1706981

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Abstract

Drilling is a salient machining process employed in assembling the components and structures made from polymer composites. Influence of various drilling process parameters on the drilling process h...

Highlights

Glass fiber–reinforced plastic (GFRP) composites find a wide range of application in the industries like automotive, marine and aerospace due to their significant mechanical, tribological and thermal properties (ASM Handbook., 2002)
The results indicate that the thrust force was majorly affected by the feed, contributing 80.54% to the variance, and drill bit angle proved to be the highly significant factor in case of the cutting temperature
Thrust force is a key factor influencing the propagation of delamination and is a major drawback faced in the drilling of GFRP composite laminates

Summary

Introduction

Glass fiber–reinforced plastic (GFRP) composites find a wide range of application in the industries like automotive, marine and aerospace due to their significant mechanical, tribological and thermal properties (ASM Handbook., 2002). The application demands for drilling of quality holes in GFRPs; researchers have identified that delamination in the GFRP laminate composites is a major limiting factor. Patwari et al investigated the effect of feed rate (100, 300 and 500 mm/min), speed (500, 750 and 100 rpm) and drill tool diameter (6, 9 and 12 mm) on the surface roughness of GFRP with and without the presence of electromagnetic waves. The study comprising Box–Behnken (Bagci & Ozcelik, 2006) experiments indicated that the machining in the presence of electromagnetic waves improves the surface roughness of the drilled hole. Shahkhosravi et al investigated the impact of high-speed drilling parameters on the delamination during GFRP drilling and subsequently on the static strength and fatigue life of woven glass fibre– reinforced epoxy composite laminates (Shahkhosravi, Yousefi, Najafabadi, Burvill, & Minak, 2019). Novel SD modelling and simulation approach is used to simulate the thrust force and the process parameters influencing the overall drilling process, so as to select optimum thrust force to reduce delamination and produce quality holes

Materials and methods

Results and discussion

Conclusions