Author
Dinesh Kumar Koli
Bio: Dinesh Kumar Koli is an academic researcher from Maulana Azad National Institute of Technology. The author has contributed to research in topics: Composite number & Magnetic particle clutch. The author has an hindex of 4, co-authored 5 publications receiving 233 citations.
Papers
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TL;DR: The applications of aluminium matrix composite materials are growing continuously in the field of automotive and aerospace because of their superior physical, mechanical and tribological properties as compared to base alloy as discussed by the authors.
178 citations
TL;DR: A wide range of research has been done on the processing methods and material properties of Al-Al 2 O 3 nano-composites in which agglomeration of the reinforcing particles causes grain growth resulting changes in the microstructure as mentioned in this paper.
112 citations
TL;DR: In this article, the authors deal with designing a friction clutch assembly using Solid Works Office Premium software, which consists of the clutch plate, the pressure plate and a diaphragm spring.
23 citations
TL;DR: In this paper, an advanced ultrasonic assisted stir casting technique has been adopted to incorporate nano-sized Al 2 O 3 particle into aluminum alloy 6061 to form particulate nano composite material.
8 citations
TL;DR: In this article, the authors address the problem of ground Bourne vibration and ways in which both humans and railway bridge structures respond to it and discuss the methods of reducing the vibration and noise caused to railways bridges.
2 citations
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TL;DR: A review on advances and trends of aluminium matrix composites for industrial uses is presented in this article, where the automotive industry is subjected to increasingly restrict fuel economy requirements by consumers, demanding improved comfort and safety.
208 citations
TL;DR: In this paper, a heat treatable TiB2/Al-3.5Cu-1.5Mg-1Si composite was successfully fabricated by selective laser melting (SLM).
Abstract: A heat treatable TiB2/Al-3.5Cu-1.5Mg-1Si composite was successfully fabricated by selective laser melting (SLM). The results show that the Q phase forms in the matrix of the as-fabricated TiB2/Al-3.5Cu-1.5Mg-1Si composite. After T6 heat treatment, the Q phase disappears and the AlxMny, Mg2Si and Al2Cu(Mg) phases are formed. The same results can be observed before and after heat treatment in the unreinforced Al-Cu-Mg-Si alloy. EBSD and TEM analyses indicate that the addition of the TiB2 particles results in a remarkable grain refinement, leading to enhanced strength of the TiB2/Al-Cu-Mg-Si composite in comparison to the unreinforced Al-Cu-Mg-Si alloy in both the as-fabricated and heat-treated conditions. Both grain refinement and Orowan strengthening contribute to the high strength of the heat treated TiB2/Al-Cu-Mg-Si composite.
123 citations
TL;DR: In this paper, the impact of the reinforcement volume fractions, reinforcement particle sizes, and metal-matrix grain sizes on their mechanical properties including the yield strength, ultimate strength, and strain to failure of composites was quantitatively analyzed.
Abstract: The metal-matrix composites/nano-composites (MMCs/MMNCs) reinforced with hard ceramic particulates have received a tremendous attention due to their potential improvements in physical and mechanical performances. In the present work, we have comprehensively collected currently available experimental data sets of Al-based MMCs/MMNCs and have carried out thorough analyses to quantitatively address the impacts of the reinforcement volume fractions, reinforcement particle sizes, and metal-matrix grain sizes on their mechanical properties including the yield strength, ultimate strength, and strain to failure of composites. We also performed a quantitative analysis on the strengthening mechanisms of Al MMNCs to reveal that the grain refinement can play a major role in increasing the strength of composites. Al-based MMC or MMNC materials generally exhibited an indirect relationship between the strength increase and strain-to-failure increase. The results include a critical comparison for the mechanical performance of particulate-reinforced composites for both pure and alloyed Al matrices to elucidate the contemporary status of Al MMC and MMNC materials.
123 citations
TL;DR: The reinforcing effect of graphene nanosheets in Al matrix composites has been studied in this paper, where the Al powder was mixed with 1.5% of few-layer graphene and graphene oxide (FLGO) using a wet method followed by cold-compaction and sintering.
100 citations
Dissertation•
01 Jan 1996
TL;DR: In this article, the authors presented a vibration control of bridges under moving loads using tuned mass damper (TMD), a kind of passive type control device that has permanent service time, and needs easy management and maintenance efforts and no external power supplying sources.
Abstract: This paper presents vibration control of bridges under moving loads using tuned mass damper (TMD). TMD, a kind of passive type control device, has a variety of merits in that it has permanent service time, and needs easy management and maintenance efforts and no external power supplying sources. TMD is tuned to the 1st dominant vertical mode and installed in the middle of bridges. The dynamic response of bridges subjected to moving loads can be obtained using moving mass model that considers the effects of the vehicle mass, thus TGV highspeed trains are modeled as 2 DOF system consisting of wheel and body. To show the efficiency of TMD in the case of 3-span bridge the midpoint vertical displacements and their fast Fourier transform results are com-pared before and after the installation of TMD.
94 citations