Recent advancement in the natural fiber polymer composites: A comprehensive review

The use of composites in industries has become inevitable due to the enhancement in properties, reduction in the manufacturing cost and suitability to several applications. Among the different clas...

A review on the polymeric laminates reinforced with natural fibers

Bio-degradability and sustainability have become major objectives in the field of materials engineering. Due to this, the utilisation of natural reinforcement is gaining immense attention among com...

Machining and its challenges on bio-fibre reinforced plastics: A critical review:

This study was carried out to investigate the parametric influence on the performance of drilling newly made sandwich composites. Sandwich composite was prepared by using steel and jute as reinforcements and polyester as the matrix material. Drilling experiments were carried out by considering input factors such as spindle speed, feed rate of the spindle, point angle of the drill and tool diameter. Three output factors, namely thrust force developed during drilling, surface roughness of the drilled hole and damage at the entrance surface, were studied. All output factors were optimized by using the Box–Behnken approach, and the best machining conditions were taken on the basis of the desirability approach. Confirmatory experiments were conducted and compared against the Box–Behnken model. The comparison showed only a minor error, and hence the optimization is satisfactory.

Parametric optimization studies on drilling of sandwich composites using the Box–Behnken design

Fiber reinforced composites are majorly used as structural components in industries and also as a replacement for wood. Fiber reinforced composites are manufactured by reinforcing fibers in the pol...

Trends and Challenges on the Development of Hybridized Natural Fiber Composites

Drilling of holes in the assembly of structural frames of automobile and aircrafts are inevitable in order to make joining of parts. The drilling induced damage imparts reduced life and efficiency of parts. The present study attempts an effort to correlate drilling induced damage with drilling parameters during drilling on the Sisal-glass/vinyl ester hybrid composites. Diameter of drill, speed and feed rate were considered as significant factors and they control or minimise the drilling induced damages. Experiments were conducted under various cutting conditions as per design of experiments. Mathematical models for thrust force, torque and delamination factor were developed using non-linear regression equations. Optimisations of controlling parameters were done using Nelder-Mead simplex search method and central composite face centred design (CCFD). Analysis of variance (ANOVA) was used to study the effect of process parameters on drilling responses. The results revealed that the delamination can be effectively reduced in drilling of sisal-glass fibre composite materials by applying the lower feed rate values.

Regression modelling and optimisation of cutting parameters through Nelder-Mead simplex search and CCFD during drilling of sisal-glass/vinyl ester composites

R. Ramprasath

Papers

Regression modelling and optimisation of cutting parameters through Nelder-Mead simplex search and CCFD during drilling of sisal-glass/vinyl ester composites