| Issue |
MATEC Web Conf.
Volume 184, 2018
Annual Session of Scientific Papers IMT ORADEA 2018
|
|
|---|---|---|
| Article Number | 01008 | |
| Number of page(s) | 6 | |
| Section | Mechanical Engineering and Automotive | |
| DOI | https://doi.org/10.1051/matecconf/201818401008 | |
| Published online | 31 July 2018 | |
An improved model for the damped impact of composite materials applicable to wind turbine blades
1
Stefan cel Mare University, Suceava, 13 University Str., 720229, Romania
2
Carol Davila University of Medicine and Pharmacy, Dpt. Clinic 2, 8 Bd. Eroii Sanitari, 050474, Bucharest, Romania
* Corresponding author : florina@fim.usv.ro
Composite materials are used in manufacturing a vast game of products, from usual objects, medical devices, aerospatial parts to military equipment. One of the features considered when a composite material is designed as target aims the energy dissipation with respect to the projectile. The paper presents an improved alternative of a model which is broadly used in the impact of projectile and composite target. The initial model has the weakness that does not present the hysteresis loop. The improvement of the model consists in including a nonlinear damper placed between the projectile and the target, the damping force being simultaneously proportional to the impact velocity and the elastic force. The new model has a hysteresis loop closed in the origin. The proposed model is applied for concrete situations and the results are presented in graphical manner.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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