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![Figure 3.4: Charpy impact testing machine[17]](profile/Alexander-Konyukhov-3/publication/327837026/figure/fig5/AS:674303171379200@1537777812029/Charpy-impact-testing-machine17_Q320.jpg)
This is a master thesis of Ziyi Ding which is devoted to the development of a strategy to model the cutting process for different cutting tools subjected to various spatial kinematics.
The cutting tools are classified with various cutting edge angles and selected as follows: a) an axe – with a large cutting edge angle 16.77°; b) a chisel – with a...
Citations
... Good enough mixture could impart higher impact strength to the composite. [25] Fig.3 Izod impact Test machine [25,26] The standard example for ASTM is 64 x 12.7 x 3.2 mm. The most well-known example thickness is 3.2 mm, however the favored thickness is 6.4 mm since it isn't as liable to twist or pound. ...
Standard fibers have attracted the attentiveness of technocrats, specialists, experts, and researchers throughout the globe as elective support for fiber built up polymer composites, due to their predominant properties like high explicit strength, low weight, minimal expense, truly incredible mechanical properties, non-grating, eco-accommodating, and bio-degradable qualities. Here of view, a short survey has been completed to utilize normal strands, (for example, jute, Kenaf, pineapple, sisal, and so forth) bounteously accessible in India. Glass Fiber Reinforced Polymers are blending in with normal filaments to build Engineering and Technology applications. This paper presents an examination of the mechanical characteristics of regular fibers and hybrid fibers supported by polymer composites. Seven Sample composite covers of the various mix without alkali treatment has been prepared. The physical, Mechanical properties need to reveal for the better composition of the reinforced elements as per ASTM standard. The specimen has been prepared as per ASTM Standard for Mechanical Characterization. The tensile strength of the hybrid specimen shows maximum ultimate tensile strength 97.24Mpa with yield tensile strength is 67.11Mpa and Young’s Modulus 6673.64Mpa at maximum force of 6.56 KN. This is the highest among all configurations. From the consolidated result of flexural strength of all seven combinations, it is come to notice that, the flexural strength of the hybrid specimen composite shows maximum flexural strength 207.84 MPa. It is observed that the impact strength of the hybrid material is 42% more than Kenaf and E-glass material combination and 54% more than the Jute and E-glass material combination.
Technocrats and researchers are attracted to the Polymer Matrix Composite (PMC) material due to its predominant mechanical properties. It has been observed from the literature survey that, use of any of the natural fibers alone from the available category like, Bast fibers e.g. jute, kenaf etc., Leaf fibers e.g. Sisal, Banana etc, Grass fibers e.g. Bamboo, Bagasse, Corn etc., Seed fibers e.g. cotton, Kapok etc., fruits fibers e.g. coir, palm etc. etc. as reinforced elements with matrix for composite not proven enough in strength for the proposed application due to its inbuilt characteristics. That limitation motivated me to do work on hybrid composites. Research is needed to find the better combination of the blend from the decided wt % configuration of fibers. In this paper, by taking the blend of natural fibers (Jute and kenaf) with a synthetic fiber (Glass fibers) with epoxy resin as matrix has been consider for the composite material preparation and its mechanical properties has been reveal as per American Society for Testing and Materials (ASTM) standard. The aim of the current work is to find a better wt % configuration out of the decided. Seven laminates of different configurations have been prepared by taking bidirectional woven fabric with the help of compression molding method. The tensile strength of the hybrid specimen shows maximum ultimate tensile strength 102.10 Mpa and Young’s Modulus 6706.90 MPa at maximum force of 7.70 kN.The flexural strength of the hybrid specimen composite shows maximum flexural strength 225.30 MPa. The impact strength of the hybrid material is 11.43 J/M.The hybrid composite material shows the more than 100,000 cycles. This is the highest among the seven examined configurations.
