The effect of natural rubber particle inclusions on the mechanical and damping properties of epoxy-filled glass fibre composites

Author:

Ravi Sankar H1,Vamsi Krishna P2,Bhujanga Rao V3,Bangaru Babu P4

Affiliation:

1. Department of Mechanical Engineering, GITAM University, Visakhapatnam, India

2. Department of Industrial Production Engineering, GITAM University, Visakhapatnam, India

3. NSTL, Visakhapatnam, India

4. Department of Mechanical Engineering, NIT, Warangal, India

Abstract

Vibration damping is proving important for improved vibration and noise control, dynamic stability, fatigue, and impact resistance in advanced engineering systems. In the present work, the effect of natural rubber particle inclusions on the mechanical and damping properties of epoxy-filled glass fibre composites is investigated. Test specimens are fabricated with inclusion of natural rubber particles of different sizes and tested for tensile strength, tensile modulus, flexural strength, and flexural modulus. These mechanical properties are influenced by the size of the rubber particle inclusions. Vibration tests are carried out and damping ratio is calculated. It is observed that damping ratio varies with inclusion of natural rubber particles and that 0.25mm particle inclusions improve damping better than other selected particle sizes without greatly affecting the stiffness in the case of cantilever beams and fixed free plates.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Materials Science

Reference21 articles.

1. Damping studies in fiber-reinforced composites – a review

2. Optimal constrained viscoelastic tape lengths for maximizing dampingin laminated composites

3. Adams D F, Zimmerman R S ‘Static and impact performance of polyethylene/graphite fibre hybrid composite’ In Proceedings of the 31st International SAMPE Symposium, 1986, pp. 1456–1468 (Society for the Advancement of Materials and Process Engineering, Covina, CA).

4. Mantena P R, Gibson R F ‘Dynamic mechanical properties of hybrid composites polyethylene/graphite composites’ In Proceedings of the 22nd International SAMPE Technical Conference, 1990, pp. 370–382 (Society for the advancement of materials and Process Engineering, Covina, CA).

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