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Fracture toughness of kenaf mat reinforced polyester matrix


Radif, Zainab Shaker and Ali, Aidy (2009) Fracture toughness of kenaf mat reinforced polyester matrix. In: 9th National Symposium on Polymeric Materials 2009 (NSPM 2009), 14-16 Dec. 2009, Residence Hotel, Uniten, Putrajaya. (pp. 258-269).


The fractures behavior represents most critical issues in the automotive and aerospace fields. Thus, this paper shifted to estimate and analyze the crack criteria by using the mathematics' laws that limited in E 1820-01 standard and the result affirmed by applied the numerical solutions of ansys to estimate the fracture toughness value KIC beside the energy release rate of biomass composite. The specimens subject the test were preparing from different percentage from Kenaf Mat (KM) and Unsaturated Polyester resin (UP) 20%KM - 80%UP and 40% KM - 60% UP respectively, as well the other composite properties will be calculated via using the tensile test. The fracture characterizations of this composite carried out by using the Compact Tension (CT) specimen that commonly used for determining Mode-I fracture properties, whereas the fracture toughness has found to be independent of pre-crack length. The tests were performed at room temperature. The numerical simulations of ansys model results refer to a good agreement with experimental data for computed the fracture toughness values. The fracture toughness KIC of 20% KM-80% UP and 40% KM-60%UP equivalent to 0. 76 MPa m0.5 and 2.0 MPa m0.5 respectively. Unambiguous related between the fracture amount and fiber percentage of composite. On another hand there are unlimited mechanism of cracks paths derive from randomly kenaf mat packs specially in the frontal process zone of crack tip.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
Keywords: Fracture toughness; Energy release rate; Kenaf mat composite
Depositing User: Nabilah Mustapa
Date Deposited: 01 Mar 2017 09:44
Last Modified: 01 Mar 2017 09:44
URI: http://psasir.upm.edu.my/id/eprint/50310
Statistic Details: View Download Statistic

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