Dry Sand Erosion Damage Characteristic of Fibers Induced by Solid Particle Impact

The effect of solid particle erosion on the strength and fatigue properties of E-glass/epoxy composite was investigated. Solid particle erosion with SiC particles of 400 μm to 500 μm in diameter was simulated on 12 ply [45°/-45°/0°/45°/-45°/0°]s E-glass/epoxy composites with a constant particle velocity of 42.5 m/s and solid particle to air volume ratio of 6 kg/m3 at impact angles of 90°, 60°, and 30° for 30, 60, 90 and 120 seconds. Damaged and undamaged specimens were subjected to tensile tests while monitoring their acoustic emission (AE) activity. An erosion damage parameter was defined as a function of the particle impact angle and erosion duration to determine the residual tensile strength of the composite. Scanning electron microscope (SEM) images of the erosion damaged specimens revealed the same damage mechanism occurred at different impact angles. The AE stress delay parameter was used to predict the residual tensile strength of erosion damaged composites. Tension-tension fatigue tests were performed on virgin specimens and specimens exposed to erosion damage of 60 seconds and 90 seconds at 90° particle impact angle to observe the effects of erosion damage on the fatigue life. A modified Basquin's equation was defined to predict the fatigue life of the erosion damaged specimens.

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Relationship between surface hardness and erosion damage caused by solid particle impact

Wear ◽

10.1016/0043-1648(93)90067-v ◽

1993 ◽

Vol 162-164 ◽

pp. 688-695 ◽

Cited By ~ 67

Author(s):

Y.I. Oka ◽

M. Matsumura ◽

T. Kawabata

Keyword(s):

Solid Particle ◽

Surface Hardness ◽

Particle Impact ◽

Erosion Damage

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Practical estimation of erosion damage caused by solid particle impact

Wear ◽

10.1016/j.wear.2005.01.040 ◽

2005 ◽

Vol 259 (1-6) ◽

pp. 102-109 ◽

Cited By ~ 159

Author(s):

Y.I. Oka ◽

T. Yoshida

Keyword(s):

Solid Particle ◽

Particle Impact ◽

Erosion Damage

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Study of solid particle impact effects and coating thickness on the erosion damage

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406214524546 ◽

2014 ◽

Vol 228 (16) ◽

pp. 2861-2870 ◽

Cited By ~ 1

Author(s):

A Pourkamali Anaraki ◽

J Kadkhodapour ◽

N Kangarani Farahani

Keyword(s):

Gas Turbine ◽

Solid Particle ◽

Turbine Blade ◽

Particle Velocity ◽

Coating Thickness ◽

Particle Diameter ◽

Particle Impact ◽

Gas Turbine Blade ◽

Erosion Damage ◽

Blade Coating

The development of high performance coatings for the protection against erosion requires understanding of their complex failure mechanisms occurring during solid particle impact. In the present work, a numerical analysis is carried out to study the effect of particle diameter, particle velocity, and coating thickness on erosion damage of gas turbine blade coating caused by solid particle erosion. For this purpose, the performance assessment of turbine blade coating is done using scanning electron microscopic testing. Furthermore, simulation of the impact of a solid particle on a plate is performed by finite element method using the commercially available software ABAQUS. In particular, the following values of the particle diameter ( dP), the particle velocity ( VP), and coating thickness ( tC) have been analyzed: 20 µm ≤ dP ≤80 µm, 80 m/s ≤ VP ≤120 m/s and 5 µm ≤ tC ≤12 µm. The results demonstrate that in erosion of gas turbine blade coating the particle velocity is 1.6 times more effective than the particle diameter and 7.3 times more effective than the coating thickness.

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