Authors
1
Mechanical engineering department- Faculty engineering- University of Kufa - Najaf- Iraq
2
Department of Mechanical Engineering, Faculty of Engineering, University of Kufa, Najaf, Iraq
3
Department of Mechanical Engineering, University of Technology, Baghdad, Iraq
,
Document Type : Research Article
Abstract
In this work, functionally graded Materials (FGMs) were created by centrifugal force mixing polyester resin with silicon dioxide (SiO2) to create five layers, each having a thickness of 1.2 mm. Tensile composite specimens with varying volume fractions (0, 10, 15, 20, 25, and 30)% are taken before the fabrication of the FGMs specimens, and their modulus of elasticity is subsequently computed. The fourth specimen was made using the exponential equation to describe the property distribution throughout the thickness of the three-points specimen, whereas the other three specimens were made using the power law equation when the power law index (β) was (0.5, 1, and 5). Flexural modulus of the functionally graded composite (FGMs) loaded from the neat polyester, raised by 37.1% for (β=0.5). When compared to pristine polyester, the flexural modulus improved by 33.3% for (β=1). The increase in (β=5)'s flexural modulus was (27.78%). The flexural modulus improved by 24.5% with exponential FGMs.Good correlations are observed, with the greatest absolute discrepancy between the numerical and experimental outcomes being 14.6% when the power law index (β) is at (0.5).The results of the experimental flexural test were verified using Design Modeler (ANSYS Workbench R2 2021).
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