Wear Characterization of Aluminium/Basalt Fiber Reinforced Metal Matrix Composites - A Novel Material

Aluminum alloy based metal matrix composite participate have a wider applications in wear resistance applications. Attempt made in current study is that, basalt fiber reinforced aluminum metal matrix composite have been prepared using stir casting method. Different weight percentage of basalt fiber reinforced with Al (6061) metal matrix composites are used to study the wear resistance of the composites. For wear study, percentage of reinforcement, normal load and sliding velocity are the considered as important parameters. To study the effect of basalt fiber reinforcement on the dry sliding wear of Al6061 alloy composites the Pin On wear tester is used. Initially hardness of the composites was tested, it was found that increasing reinforcement in the composite hardness value of the composites also increased. Based on the Grey relation analysis (GRA) the effects of wear resistance of the composites were studied

Morphological investigation and mechanical behaviour of agrowaste reinforced aluminium alloy 8011 for service life improvement

Aluminium composite materials are beneficial in most engineering applications, most notably, because of their lightweight to strength ratio amongst many others. This study reports the reinforcement of aluminium alloy 8011 with cow horn and corncob in varying weight percentages of 5wt%, 10wt%, 15wt% and 20wt%. This study adopted the Stir casting method based on availability and cost-effectiveness as the cheapest method amongst others. The developed composite materials were in eight different samples alongside one control sample of the aluminium alloy base material. The samples used for this experimental study were tested for tensile strength, hardness and microstructural analysis. The outcome of the study shows that the sample with 20wt% of cow horn reinforcement gave the best-improved properties in terms of yield strength, ultimate tensile strength (UTS) and hardness with percentage improvement of 57%, 52.6% and 54.4% respectively. Hardness was also improved with 52.6% over the control sample with the 15wt% cow horn reinforced sample. Cow horn of 10wt% reinforcement improved the material by 61%. The results shown have justified the relevant effect of agro-waste materials in composite development

Effective Software Assembly for the Real time systems using Multi-level Genetic Algorithm

Abstract: Software Assembly of reusable components is one of the most important processes to improve the reliability of the product in the Commercial Off The Shelf (COTS) software. Software assembly and also continuous improvement of quality in software based systems is an important issue in software development process. In this paper, a multilevel genetic algorithm is used to find the sequence of the assembly order of the software components among the chosen reusable components. In GA, dependency between the components is also considered based on coupling factor and the assembly order of the identified software component is found effectively

Free vibration and dynamic mechanical properties of basalt fiber reinforced polymer composites

265-270In this study, the free vibration and dynamic mechanical properties of the surface modified basalt fiber reinforced polymer composites have been investigated. The surface modification of fiber has been carried out with 1N solution. Untreated, acid treated and base treated basalt fiber composites were prepared using Hand layup technique. Fourier transform infrared spectroscopes (FTIR) were used for the study of the effect of surface treatment on fibers. The natural frequencies and damping coefficient of the laminated composites have been analyzed using an impact hammer. The result showed better natural frequencies in the untreated basalt fiber composites than composites prepared with treated fiber. Dynamic mechanical analysis (DMA) was also carried out to find the mechanical properties of the composites as a function of temperature, in this analysis also, Untreated basalt fiber composite were found to possesses good storage modulus, loss modulus and damping factor