Investigation of mechanical behaviour of natural composites (snake grass and elephant grass) with poly lactic acid


  • C. Thiruvasagam
  • S. Prabagaran
  • P. Suresh





Poly Lactic Acid, elephant Grass, Snake Grass, mechanical properties, flexural properties.


The Poly Lactic Acid (PLA) is a completely biodegradable potential alternate of plastics applied in Civil infrastructural field because it posses very good “Ultimate Withstanding†properties. It can also be stated that hybrid fiber composite is having higher Mechanical and Physical characteristics compared with Mono fiber reinforced composite. Naturally existing Snake Grass (SG) and Elephant Grass (EG) reinforced PLA matrix fabrication is being narrated in this research article. By experimentation and analysis of results, it is proved that the Tensile strength, % Elongation, Flexural strength, Impact strength and Water absorption properties of SG & EG reinforced PLA composite is better than that of pure PLA Matrix.


[1] Anuar H, Zuraida A, Kovacs JG & Tabi T, “Improvement of mechanical properties of injection moulded polylactic acid–kenaf fiber bio compositesâ€, Thermoplastic composite material, (2012).

[2] Mofokeng JP, Luyt AS, Tabi T & Kovacs J, “Comparison of injection moulded, natural fiber reinforced composites with PP and PLA as matricesâ€, Thermoplastic composite material, Vol.25, (2011), pp.927-948.

[3] Auras RA, Harte B, Selke S & Hernandez R, “Mechanical, physical and barrier properties of polylatic filmâ€, Plastic film sheeting, Vol.02, (2003).

[4] Murali Mohan Rao K, Ratna Prasad AV, Ranga Babu MNV, Mohan Rao K & Gupta AVSSKS, “Tensile properties of elephant grass fiber reinforced polyester compositesâ€, Material Science, Vol.42, (2007), pp.3266-3272.

[5] Kovier K, “Fiber reinforced concreteâ€, The cement andconcrete Institute, (2001).

[6] Ramanaiah K, RatnaPrasad AV & HemaChandraReddy K, “Thermo physical properties of elephant grass fiber-reinforced polyester compositesâ€, Materials and design, Vol.89, (2012), pp.156-158.

[7] Sathishkumar TP, Navaneethakrishnan P & Shankar S, “Tensile and flexural properties of snake grass natural fiber reinforcedisophthallic polyester compositesâ€, Composite Materials and Tech, Vol.72,(2012), pp.1183-1190.

[8] Vijaya Ramnath B, Junaid Kokan S, Niranjan Raja R, Sathyanarayanan R, Elanchezhian C, Rajendra Prasad A & Manickavasagam VM, “Evaluation of mechanical properties of abaca–jute–glass fibre reinforced epoxy compositeâ€, Materials and Design, Vol.51,(2013), pp.357-366.

[9] Herrera Franco PJ & Valadez Gonzalez A, “A study of mechanical properties of short natural fiber reinforced compositesâ€, Composites: Part B, Vol.36, (2005), pp.597-608.

[10] Burgueno R, Quagliata MJ, Mehta GM, Mohanty AK, Misra M & Drzal LT, “Sustainable cellular biocomposites from natural fibers and unsaturated polyester resin for housing panel applicationsâ€, Journal of Polymers and the Environment, Vol.13, No.2, (2005), pp.139-149.

[11] Monteiro SN, Lopes FPD, Ferreira AS & Nascimento DCO, “Natural-fiber polymer-matrix composites: cheaper, tougher, and environmentally friendlyâ€, JOM Journal of the Minerals, Metals and Materials Society, Vol.61, No.1, (2009), pp.17-22.

[12] Boopalan M, Niranjanaa M & Umapathy MJ, “Study on the mechanical properties and thermal properties of jute and banana fiber reinforced epoxy hybrid compositesâ€, Composites: Part B, Vol.51, (2013), pp.54–57.

[13] Sreenivasan VS, Somasundaram S, Ravindran D, Manikandan V & Narayanasamy R, “Microstructural, physico-chemical and mechanical characterisation of Sansevieria cylindrica fibres–an exploratory investigationâ€, Materials and Design, Vol.32, (2011), pp.453–461.

[14] Sreenivasan VS, Ravindran D, Manikandan V & Narayanasamy R, “Mechanical properties of randomly oriented short Sansevieria cylindrical fibre/polyester compositesâ€, Materials and Design, Vol.32, (2011), pp.2444–2455.

[15] Murali Mohan Rao K, Mohana Rao K & Ratna Prasad AV, “Fabrication and testing of natural fiber composites: Vakka, sisal, bamboo and bananaâ€, Materials and Design, Vol.31, (2010), pp.508–513.

[16] Venkateshwaran N, ElayaPerumal A, Alavudeen A & Thiruchitrambalam M, “Mechanical and water absorption behaviour of banana/sisal reinforced hybrid compositesâ€, Materials and Design, Vol.32, (2011), pp.4017–4021.

[17] Surendar, A., M. Kavitha, and V. Saravanakumar. "Proactive model based testing and evaluation for component-based systems." International Journal of Engineering & Technology 8.1.1 (2018): 74-77.

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