A Semi-Empirical Airborne Particle Erosion Model for Polyesteric Matrix Fiberglass Composites
Journal Title: INCAS BULLETIN - Year 2013, Vol 5, Issue 4
Abstract
The paper deals with the mathematical modeling of the airborne solid particle erosion rate of composite materials, in particular non-oriented fiberglass reinforced polyesteric matrices. Using the mathematical tool of non-linear regression, based on experimental data available in the state of the art, an algebraic equation has been determined to estimate the relative erosion rate of such composites. The formulation is tailored so that it relates to classical erosion models such as Finnie’s, Bitter’s or Tulsa angle dependent model which can be implemented into commercial computational fluid dynamics software. Although the implementation - per se - is not described herein, the model proposed can be useful in estimating the global effect of solid particle erosion on composite materials in this class. Further theoretical developments may add to the model the capacity to evaluate the erosion rate for a wider class of matrices as well as more types of weavings.
Authors and Affiliations
Valeriu DRAGAN, Danuta GRAD
Keywords
Related Articles
- EP ID EP162200
- DOI 10.13111/2066-8201.2013.5.4.4
- Views 114
- Downloads 0
Mathematical modeling of a V-stack piezoelectric aileron actuation
The article presents a mathematical modeling of aileron actuation that uses piezo V-shaped stacks. The aim of the actuation is the increasing of flutter speed in the context of a control law, in order to widen the flight...
Vibration Energy Harvesting Potential for Turbomachinery Applications
The vibration energy harvesting process represents one of the research directions for increasing power efficiency of electric systems, increasing instrumentation nodes autonomy in hard to reach locations and decreasing t...
Case Study regarding the test of the new screw compressor with high delivery pressure - 45 bara - on the test bench (with air)
Screw compressors, which are part of positive displacement compressors, can find an increasing use in gas industry and beyond due to their advantages. Maximal parameters of these devices, done by Comoti under GHH-Rand li...
About zeros of some oscillations with dynamic friction
Consider a second order differential non-linear equation having free boundary value conditions. Let be a solution having infinity of unknown zeros. The integral of energy gives the implicit correlation between the succes...
[b]The problem of incompressible jets with curvilinear walls[/b]
The jet flow problem concerning the discharge of a fluid (from an orifice in a container) into the atmosphere is studied herein in the framework of the Helmholtz-Kirchhoff model. The problem is reduced to the study of a...