- UHRA Home
- Browsing by Author
Browsing by Author "Rajini, N."
Now showing items 1-20 of 25
-
Animal fiber characterization and fiber loading effect on mechanical behaviors of sheep wool fiber reinforced polyester composites
Manivannan, J.; Rajesh, S.; Mayandi, K.; Rajini, N.; Ismail, S. O.; Mohammad, F.; Kuzman, M. K.; Al-Lohedan, H. A. (2020-12-06)This study presents animal fiber characterization and the influence of various fiber loadings on mechanical properties of sheep hair fiber-reinforced polymer (SHFRP) composites. The sheep hair fibers (SHF) characterization ... -
Applicability of angular orientations of gating designs to quality of sand casting components using two-cavity mould set-up.
Rajkumar, I.; Rajini, N.; Prabhu, T. R.; Ismail, S. O.; Siengchin, S.; Mohammad, F.; Al-Lohedan, H. A. (2021-10-28)This study aimed to examine the integrity of two-cavity sand casting products in relation to the angular orientation of gating design. Two angular orientations of 60 and 45 were investigated experimentally and numerically ... -
Applicability of cellulosic-based Polyalthia longigolia seed filler reinforced vinyl ester biocomposites on tribological performance
Nagaprasad, N.; Stalin, B.; Vignesh, V.; Ravichandran, M.; Rajini, N.; Ismail, S. O. (2020-10-31)The focus of this work was to analyze the effect of weight percentage (wt.%) of Polyalthia longigolia seed filler (PLSF) on the wear responses (wear loss and coefficient of friction) of the vinyl ester (VE) matrix composites, ... -
Assessment on hybrid jute/coir fibers reinforced polyester composite with hybrid fillers under different environmental conditions
Ganesan, K.; Kailasanathan, C.; Rajini, N.; Ismail, Sikiru O.; Ayrilmis, Nadir; Mohammad, Faruq; Al-Lohedan, Hamad A.; Tawfeek, Ahmed M.; Issa, Zuheir A.; Aldhayan, Daifallah M. (2021-09-27)In this work, synergistic impact of hybrid fibers and hybrid fillers on mechanical, moisture absorption and morphological properties of polyester matrix composites at dry and wet conditions was examined. The hybrid composite ... -
An automated software development for analysis of the morphological-tensile property relationship in egg shell bio-based particulate composites using machine learning algorithms
Rani, G. E.; Murugeswari, R.; Vairamuthu, S.; Rajini, N.; Mohammad, F.; Siengchin, S.; Ismail, S. O.; Senthilkumar, K. (2023-03-01)This work explored the importance of quantitative observation through imaging methods of optical and electron microscopies on the mechanical properties of particulate polymeric composites. Egg shell powder (ESP) reinforced ... -
Bio-mediated Synthesis of Nanomaterials for Packaging Applications
Sivaranjana, P.; Rajini, N.; Arumugaprabu, V.; Ismail, S. O. (Materials Research Forum LLC, 2021-10-15)Change in lifestyle of humans in this present generation with huge dependence on packaging materials has encouraged several studies on development of new variety of packaging materials. Emphasis on replacement of existing ... -
Cellulosic fiber based hybrid composites: A comparative investigation into their structurally influencing mechanical properties
Vignesh, V.; Balaji, A. N.; Rabi, B. R. M.; Rajini, N.; Ayrilmis, N.; Karthikeyan, M. K. V.; Mohammade, F.; Ismail, S. O.; Al-Lohedan, H. A. (2020-11-25)This paper focuses on hybrid and twisted hybrid Indian mallow/roselle cellulosic fiber yarn mat reinforced polyester composites and effects of their wood sawdust filler. The composite materials were fabricated using ... -
Effect of chemical treatment on physico-chemical properties of a novel extracted cellulosic Cryptostegia grandiflora fiber
Udhayakumar, A.; Mayandi, K.; Rajini, N.; Devi, R. K.; Muthukannan, M.; Murali, M.; Ismail, S. O.; Mohammad , F.; Al-Lohedan , H. A. (2023-07-27)The increasing global need to achieve sustainability in product development demands the use of biodegradable materials from renewable resources in many engineering applications. Accordingly, various natural fibers were ... -
Effects of Moisture Absorption and Thickness Swelling Behaviors on Mechanical Performances of Carica Papaya Fiber Reinforced Polymeric Composites
Saravanakumaar, A.; Senthilkumar, A.; Rajan, B. M.; Rajini, N.; Ismail, S. O.; Mohammad , F.; Al-Lohedan, H. A. (2022-04-04)In this study, composite materials were made from Carica papaya fibers (CPFs), as a reinforcing element in polypropylene (PP), polyester (P) and epoxy (E) matrices, using compression molding technique. Experiments were ... -
Effects of nitriding on salt spray corrosion resistance of additively manufactured 17-4 PH steels
Michla, J. R. J.; Rajini, N.; Ismail, Sikiru O.; Prabhu, T. R.; Mohammad , F.; Siengchin, S.; Devi, M. P. I. (2023-01-01)This work addresses the effects of varying nitriding temperatures of 530, 560 and 580 ◦C for 2 h on corrosion resistance of additively manufactured (AM) 17-4 PH steels, using neutral salt spray (NSS) method for 104 h. The ... -
Effects of sand and gating architecture on the performance of foot valve lever casting components used in pump industries
Rajkumar, I.; Rajini, N.; Siengchin, S.; Ismail, Sikiru O.; Mohammad, F.; Al-Lohedan, H. A.; Tawfeek, Ahmed M.; Issa, Zuheir A. (2021-11-01)This work addresses manufacture, testing and simulation of foot valve lever (FVL) for monoblock pump industry, using a cost-effective casting design process. The impact of different types of sands, such as air-set, dry and ... -
Effects of stacking sequences on static, dynamic mechanical and thermal properties of completely biodegradable green epoxy hybrid composites
Senthilkumar, K.; Kumar, T. S. M.; Chandrasekar, M.; Tengsuthiwat, J.; Rajini, N.; Siengchin, S.; Ismail, S. O.; Brintha , N. C. (2019-09-06)Hybrid composites reinforced with the hemp (H) and sisal (S) in various layering arrangements were fabricated, using hot press moulding technique and their properties were investigated. The flexural, impact and thermal ... -
Enhanced anti-corrosion characteristics of epoxy-functionalized graphene oxide nanocomposite coatings on mild steel substrates.
Sivaranjana, P.; Ramasundaram, S.; Hwan Oh, T.; Ismail, Sikiru O.; Rajini, N.; Mohammad, F. (2024-09-01)This experimental investigation focused on coating of functionalized graphene oxide (FGO) on the mild steel to minimize corrosion, using a new method. Prior to the coating, the fundamental chemical and morphological ... -
Evaluation of mechanical, thermal and water absorption behaviors of Polyalthia longifolia seed reinforced vinyl ester composites
Stalin, B.; Nagaprasad, N.; Vignesh, V.; Ravichandran, M.; Rajini, N.; Ismail, S. O.; Mohammad, F. (2020-11-15)This study presents a novel utilization of biomass solid waste, named Polyalthia longifolia (Mast tree) seed as a reinforcement in a composite, using a compression molding technique. An attempt was made to reinforce vinyl ... -
Examining the performance of eco-friendly flax fiber composites : mechanical, thermal and durability properties—review
Periasamy, D.; Prakalathan, K.; Manoharan, B.; Kumar, M. S .; Senthilkumar, K.; Dhandapani, A.; Thiagamani, S. M. K.; Rajini, N.; Ismail, Sikiru O.; Ilyas, R. A.; Natarajan , V. (2024-08-27)Flax fibers are suitable for lightweight applications and offer cost-effective solutions that do not compromise mechanical performance. Amongst natural fibers, flax fibers are the strongest and currently used in various ... -
Experimental and simulation analysis on multi-gate variants in sand casting process
Rajkumar, I.; Rajini, N.; Alavudeen, A.; Ram Prabhu, T.; Ismail, S. O.; Mohammad, F.; Al-Lohedan, H. A. (2021-02-01)The present work proposes an improved multi-gate designs (MGDs) in sand casting process, using both experimental and simulation (FLOW 3D) approaches, aiming to produce defect-free component. In this regard, the variant ... -
Feasibility of elastomeric composites as alternative materials for marine applications: A compendious review on their properties and opportunities
Aravind, D.; Senthilkumar, K.; Rajini, N.; Kumar, T. S. M.; Chandrasekar, M.; Ismail, S. O.; Yeetsorn, R.; Parameswaranpillai, J.; Siengchin, S.; Indira Devi , M. P. (2022-05-19)The term elastomer is a curtailment of two words, which are elastic and polymers. Accordingly, elastomers are polymer materials with elasticity. The significant challenges hindering the development of materials for naval ... -
Influence of Ply Stacking Sequences on the Impact Response of Carbon Fibre Reinforced Polymer Composite Laminates
Andersen , Kristian Gjerrestad; Jombo, Gbanaibolou; Ismail, S. O.; Adeyemi, Segun; Rajini, N.; Akram, Sufyan; Selwin, M (2019-12-18)In recent years, there has been a growing demand for high strength-to-weight ratio and lightweight structures in several applications, such as wind energy, automotive, aerospace, telecommunication and construction industries. ... -
Influence of slicing parameters on surface quality and mechanical properties of 3D-printed CF/PLA composites fabricated by FDM technique
Babu, N. V.; Venkateshwaran , N.; Rajini, N.; Ismail, Sikiru O.; Mohammad, F.; Al-Lohedan , H. A.; Siengchin, S. (2021-04-28)This present study focuses on evaluation of mechanical properties of three dimensional (3D)-printed carbon fiber/polylactic acid (CF/PLA) composites, using fused deposition modeling (FDM) technique. The composites were ... -
Influence of slicing parameters on surface quality and mechanical properties of 3D-printed CF/PLA composites fabricated by FDM technique
Babu, N. V.; Venkateshwaran , N.; Rajini, N.; Ismail, Sikiru O.; Mohammad, F.; Al-Lohedan , H. A.; Siengchin, S. (2021-04-28)This present study focuses on evaluation of mechanical properties of three dimensional (3D)-printed carbon fiber/polylactic acid (CF/PLA) composites, using fused deposition modeling (FDM) technique. The composites were ...