Porosity influence on the modulus of elasticity in a composite material focused on friction industry
DOI:
https://doi.org/10.4013/ete.2013.92.04Abstract
The propose of this work is to investigate the correlation between porosity and modulus of elasticity in friction materials, focusing on the influence of the amount and type of fiber used, in order to propose a mathematical model that correlates these two properties. The proposed model was developed based on the modified Law of Mixtures (Al-Qureshi, 1988) and includes the equations proposed by Spriggs (1961) and Kingery et al. (1976). A composite with a binder and a reinforcement element was analyzed to simplify the model. In order to use common materials in the friction industry the experiments have been carried out with phenolic resin as a matrix and two types of fiber as a reinforcement element: fiberglass and aramid fiber. The composites analyzed were separated in 2 groups according to the fiber used and the percentage of fiber was varied within these groups. Based on the experimental results, the use of the proposed model was verified, which demonstrated satisfactory results.
Key words: porosity, modulus of elasticity, friction materials.
Downloads
Published
Issue
Section
License
I grant the journal Estudos Tecnológicos the first publication of my article, licensed under Creative Commons Attribution license (which allows sharing of work, recognition of authorship and initial publication in this journal).
I confirm that my article is not being submitted to another publication and has not been published in its entirely on another journal. I take full responsibility for its originality and I will also claim responsibility for charges from claims by third parties concerning the authorship of the article.
I also agree that the manuscript will be submitted according to the journal’s publication rules described above.
