A wear rate model incorporating inflationary cost of agro‑waste filled composites for brake pad applications to lower composite cost

摘要

Wear rate appraisals are currently indispensable on agro-waste filled composites for brake pads as they predict theexpected lifespan of the materials. However, existing wear rate models are inaccurate as predictions omit the inflationarycost of the materials. In this paper, the idea is to account for the inflationary cost of the materials and adjust thatinto a pseudo wear rate model. The wear rate of agro-waste fillers in an organic matrix to create brake pads under drysliding wear experiments was considered. Five composite specimens were fabricated in cylindrical specimen height of14.5 mm and varying diameters of 8, 10, 12 and 15.5 mm and the material wear loss was measured. The 8, 10 and 12 mmdiameter specimens revealed that the composite with the best and worst wear resistance were the wear rates of 0.6, 1.4,1.73 mm~3/Nm, and 3.07, 3.54, 4.19 mm3/Nm, respectively. The 15.5 mm diameter specimen showed lower wear rates of2.13 and 2.14 and 1.56 mm~3/Nm than commercial brake pad’s 2.58 mm~3/Nm. The pseudo wear rate model predicts theimpact of the independent variable i.e. inflationary cost, opportunity cost, time, and sample size. The utility of this effortis to assist the composite manufacturers to take cost-effective decisions and design optimisation can be accomplishedto lower the cost of composite products.