Enhancement of Fracture Properties of Composite Laminate with Si C Additive
Abhijith U1, Ramesh Kumar R2

1Abhijith U, Department of Mechanical Engineering, Sree Chitra Thirunal College of Engineering (SCTCE), Thiruvananthapuram, India.
2Ramesh Kumar R*, Professor and Nodal Research Officer, SCTCE, Thiruvananthapuram, India.
Manuscript received on January 02, 2020. | Revised Manuscript received on January 15, 2020. | Manuscript published on January 30, 2020. | PP: 1110-1112 | Volume-8 Issue-5, January 2020. | Retrieval Number: E6119018520/2020©BEIESP | DOI: 10.35940/ijrte.E6119.018520

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Abstract: ASTM standards for short beam test, double cantilever beam and end notched specimen test are followed to compare control specimen with different percentage of Si C test data. Present study shows interlaminar shear strength (ILSS) and delamination fracture toughness values of multilayered composite laminate can be enhanced considerably with the use of Si C admixture in epoxy resin system as nonpolar elements compatible with to polar glass fiber. With respect to control specimen one percentage by weight of Si C w.r.t resin can bring up the ILSS value by as much 70% while the DCB test data on the critical energy release rate of mode I increases by 85% and mode II toughness value becomes double for 1% by weight of Si C. The bidirectional cloth provides more resistance for mode-I delamination fracture toughness when compared to UDL reported in literature and hence for higher fracture properties. The study is useful for design of rocket nozzles and input required for the cohesive zone model to assess the residual strength of composite structures with of delamination.
Keywords: Admixture, Fracture Toughness, ILSS, Short Beam
Scope of the Article: Composite Materials.