Mechanical characterizations and development of erosive wear model for Al₂O₃-filled short glass fiber-reinforced polymer composites

Abstract

In the present work, short glass fiber-reinforced polyester-based hybrid composites are fabricated by the incorporation of Al 2 O 3 particulates with three different weight percentages (0 wt.%, 10 wt.% and 20 wt.%) to evaluate their physical, mechanical, and thermo-mechanical behavior. A theoretical model has been developed for erosive wear conditions and results are compared with the experimental outcomes in order to validate the model. The mechanical properties are simulated using an explicit FE code software ANSYS. In this work, erosion test is conducted by using popular evolutionary Taguchi's (L 27 ) orthogonal array design to optimize the experimental results. It is observed from the analysis that the peak erosion rate occurs at 75 impingement angle for Al 2 O 3 -filled composites, whereas for unfilled composites, it occurs at 60 impingement angle. The thermo-mechanical characteristics such as storage modulus (E 0 ), loss modulus (E 00 ), and damping properties (Tan d) are investigated in the temperature range of 25-200 C. It is observed that the slope corresponding to the temperature-dependent decay of the storage modulus for 10 wt.% and 20 wt.%, Al 2 O 3 -filled composite is much higher as compared to 0 wt.% Al 2 O 3 -filled composite in the temperature range of 25-75 C. However, the storage modulus for 10 wt.% and 20 wt.% Al 2 O 3 -filled composites remain almost same in the range of 25-60 C. Finally, the surface morphology of the eroded composites is examined by using scanning electron microscope and the possible wear mechanisms are discussed.

Importance of Fiber-/Nanofiller-Based Polymer Composites in Mechanical and Erosion Performance: A Review

“…Erosion wear properties of short glass fiber polyester composites-reinforced with aluminum oxide filler were found to have increased velocity penetration and progress to more material loss, while increased impact velocity is one of the influence factors that the erosion wears rate velocity increase also increases the erosion rate. The maximum erosion peak was found at an angle of 75°, indicating that current composites exhibit semiductile behavior [113].…”

Physical and mechanical characterization of glass fiber‐grewia optiva fiber reinforced hybrid polymer composite fabricated by vacuum assisted resin transfer moulding

“…When the impact velocity is low, the resultant stresses are inadequate to create plastic deformation, which leads to reduced wear. Greater surface deformation and greater wear are caused by rising erodent velocity [51,52].…”

Effect of pistachio shell particles on mechanical and erosion wear performance of hybrid kenaf/glass polyester composites

“…Kundal et al 24 examined both mechanical and erosive response of glass/polymer composites with inclusion of Al 2 O 3 (alumina) as filler. An enhancement in tensile strength and reduction in flexural strength was marked due to addition of alumina dust.…”