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  • IOP Publishing  (3)
  • 1
    Online Resource
    Online Resource
    Low Velocity Impact Behaviour Analysis of Different Fibre Stacking Sequences of Glass Fibre Reinforcement Composite.
    IOP Publishing ; 2021
    In:  Journal of Physics: Conference Series Vol. 2051, No. 1 ( 2021-10-01), p. 012014-
    Details
    In: Journal of Physics: Conference Series, IOP Publishing, Vol. 2051, No. 1 ( 2021-10-01), p. 012014-
    Abstract: Furthering understanding the damage deformation behaviour involved in the impact test of Fibre-reinforced composite material is important in designing for the structural components. Thus, this study presents the damage effect of different stacking sequence of glass fibre reinforce polymer (FRP) composite on low-velocity impact test (LVI). The glass FRP composites were fabricated using vacuum-assisted resin transfer moulding process, which is capable of producing constant thickness with high volume fractions of composite laminates as compared to the traditional wet hand lay-up method. The physical and impact properties were determined according to the ASTM D7137 standards. It was found that, bi-axial glass FRP composite can afford the energy until 90J and without the post perforation occurred, which mean that from the LVI test, the architecture weave of bi-axial glass FRP composite was showed high performance as compared to the unidirectional glass FRP composite. Lastly, component failures such as resin cracking, fibre breakage, fractured knit, fibre buckling, and delamination were also highlighted in this paper.
    Type of Medium: Online Resource
    ISSN: 1742-6588 , 1742-6596
    URL: Article
    DOI: 10.1088/1742-6596/2051/1/012014
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2166409-2
    detail.hit.zdb_id: 2209069-1
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Surface roughness analysis of NiTi alloy in electrical discharge coating process
    IOP Publishing ; 2020
    In:  IOP Conference Series: Materials Science and Engineering Vol. 932, No. 1 ( 2020-09-01), p. 012120-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 932, No. 1 ( 2020-09-01), p. 012120-
    Abstract: Nickel-Titanium (NiTi) alloys, most widely known as nitinol, are presently employed in many micro-engineering applications such as coronary stents of medical implants due to their unique properties (shape memory effect and superelasticity). However, non-optimized surface finishing attributed a significantly high potential of nickel exposure after a long time of application. Releasing of nickel ion to the body environment can be harmful and toxicity resulting in adverse health as well as degrading the material biocompatibility. It is widely known that controlled surface roughness play a vital role in the formation of new bone ingrowths around implant. In this study, surface modification of NiTi alloy was used through electrical discharge coating (EDC); an adaptation of electrical discharge machining. The potential of EDC in which can facilitates the production of hard coatings may exploit the phenomena for the attachment of desirable materials onto the surface of materials. Therefore, the aim of this paper is to present a robust method (two levels of full factorial design and ANOVA) to determine the desired parameters and significant factors based on the surface roughness of the machined surface. Manipulation of parameters set up such as gap voltage, discharge duration and pulse interval and the current were employed and a reverse polarity was selected for this experiment. The results demonstrated that the most significant factors influence the surface coating performances are the discharge duration, current, gap voltage as well as the interaction between gap voltage and discharge duration.
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/932/1/012120
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2020
    detail.hit.zdb_id: 2567001-3
    detail.hit.zdb_id: 2506501-4
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  • 3
    Online Resource
    Online Resource
    Performance of Castor Oil and Neem Oil as Metal Cutting Fluids in Drilling Inconel 718 Using MQL Technique on Tool Wear and Surface Roughness
    IOP Publishing ; 2021
    In:  Journal of Physics: Conference Series Vol. 2129, No. 1 ( 2021-12-01), p. 012070-
    Details
    In: Journal of Physics: Conference Series, IOP Publishing, Vol. 2129, No. 1 ( 2021-12-01), p. 012070-
    Abstract: Inconel 718 is hard to cut material due to its high hardness, high strength at elevated temperatures, low thermal diffusivity and affinity to react with tool materials. The high temperature during machining results in aggressive tool wear and poor hole quality. Therefore, the application of metal cutting fluids (MCF) as a lubricating and cooling agent is very significant in the drilling of nickel-based superalloys such as Inconel 718. The present study embraces these issues by evaluating the performance of non-edible vegetable oils such as castor and neem oil under minimal quantity lubrication (MQL) conditions towards the tool wear and surface roughness. The drilling experiments were carried out using coated (TiAlN) carbide drill with diameter of 6 mm at different cutting speeds of 10 and 20 m/min and a constant feed of 0.015 mm/rev. The results of this study showed that castor oil significantly outperformed the neem oil in drilling performance regarding tool wear and surface roughness.
    Type of Medium: Online Resource
    ISSN: 1742-6588 , 1742-6596
    URL: Article
    DOI: 10.1088/1742-6596/2129/1/012070
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2166409-2
    detail.hit.zdb_id: 2209069-1
    Location Call Number Limitation Availability
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    Online Resource
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