Safety and Reliability of Carbon Nanotubes in Nanoactuator Application

Abstract:

This paper presents a nanoactuator device as new model of the nanocomposite application. The carbon nanotube was incorporated in the polyvinylidne fluoride and trifluoroethylene P(VDF-TrFE) copolymer matrix. The P(VDF-TrFE) was chosen for its three characteristics which is ferroelectric, piezoelectric and pyroelectric to convert directly the electrical excitation to the mechanical motion (deflection). The SWCNT/P(VDF-TrFE) nanocomposite nanostructure is proposed as nanomaterial challenge to build a nanoactuator and drive systems in nanometer scale size. A deflection the SWCNT of about 10 picometer was found using the atomic force microscopy technique combined with lock-in-amplifier. And in this paper, we present a new method based on Optimal Safety Factors (OSF) in the context of the Reliability-Based Design Optimization (RBDO) analysis of of Carbon Nanotubes in Nanoactuator. We will underline also the different methods of the RBDO analysis and we highlight the advantage of our approach. Numerical results are given to illustrate the proposed method.

• Periodical: Applied Mechanics and Materials (Volume 146)
• Pages: 130-136
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.146.130
• Online since: December 2011
• Authors: Khalil El-Hami, Abdelkhalak El Hami
• Keywords: Nanoactuator, Piezoelectric, Polymer, Single Walled Carbon Nanotubes

References

[1] S. Iijima, Nature, Vol. 56 (1991), p.354.

[2] T. W. Ebbesen and P. M. Ajayan, Nature, Vol. 220 (1992), p.358.

[3] P. M. Ajayan and S. Iijima, Nature, Vol. 333 (1993), p.361.

[4] K. El-Hami, H. Yamada, and K. Matsushige: Thin Solid Films, (2001), p.393.

[5] G.D. Li, J.N. Wang, C.T. Chan, P. Sheng : Science Vol. 292 (2001), p.2462.

[6] K. Nakamura, Y. Wada : J. Polym. Sci. Vol. A 29 (1971), P. 161.

[7] K. El-Hami and K. Matsushige: Chemical Physics Letters Vol. 368 (2003), p.168.

[8] Kharmanda, G.; Olhoff, N.; El-Hami, A. Optimum safety factor approach for reliability- based design optimization with extension to multiple limit state case, Structural and Multidisciplinary Optimization, vol 26, (2004).

DOI: 10.1007/s00158-004-0405-0

[9] Mohsine, A.; Kharmanda, G.; El-Hami, A. (2006), Improved hybrid method as a robust tool for reliability-based design optimization, J. Structural and Multidisciplinary Optimization, Vol 32, 203-213 (2006).

DOI: 10.1007/s00158-006-0013-2

[10] A. Abo Al-kheer, A. El-Hami, M.G. Kharmanda, A.M. Mouazen, Reliability-based design for soil tillage machines Journal of Terramechanics, Volume 48, Issue 1, February 2011, Pages 57-64(2011).

DOI: 10.1016/j.jterra.2010.06.001

[11] A. El Hami, B. Radi, Comparison Study of Different Reliability-Based Design Optimization Approaches , Advanced Materials Research, ISBN : 978-3-03785-163-0, Volume 274, pp.119-130 (2011).

DOI: 10.4028/www.scientific.net/amr.274.113

[12] B. Radi, A. El Hami The study of the dynamic contact in ultrasonic motor   Applied Mathematical Modelling, Volume 34, Issue 12, December 2010, Pages 3767-3777(2010).

DOI: 10.1016/j.apm.2010.03.002

[13] A. Mohsine, A. El Hami, A Robust Study of Reliability-Based Optimisation Methods under Eigen-frequency. International Journal of Computer Methods in Applied Mechanics and Engineering, Volume: 199, issues 17-20 March 2010, pages: 1006-1018 (2010).

DOI: 10.1016/j.cma.2009.11.012