Volume 15, Issue 7 (9-2015)                   Modares Mechanical Engineering 2015, 15(7): 1-12 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Forouzesh F, Jafari A A. Nonlinear Forced vibration of pseudoelastic shape memory alloy cylindrical shell subjected to the time and space dependant internal pressure. Modares Mechanical Engineering 2015; 15 (7) :1-12
URL: http://mme.modares.ac.ir/article-15-2422-en.html
1- K.N. Toosi University of Technology
Abstract:   (7194 Views)
The objective of this paper is to analyze the nonlinear vibrations of simply supported pseudoelastic shape memory alloy (SMA) cylindrical shell under harmonic internal pressure based on Donnell-type classical deformation shell theory. The pressure is a function of time and space. The behavior of pseudoelastic SMA is simulated via the Boyd–Lagoudas constitutive model numerically implemented by the Convex Cutting Plane Mapping algorithm. The Hamilton’s principle is employed to obtain the equations of motion. Differential Quadrature Method (DQM) and Newmark time integration scheme are applied to get the time and frequency responses of the cylinder. Also, the natural frequencies of the shell are obtained for the case of pure austenitic phase to compare the frequency response of the present nonlinear system (phase transformation –induced material nonlinearity) with the linear one around them. Results indicate that the strength of the material will decrease during the phase transformation. This fact is proved by the softening behavior observed in the frequency response of the system due to the phase transformation. Further, the pure austenitic phase shell is simulated in ABAQUS to verify the results. A good agreement is found between two outcomes.
Full-Text [PDF 571 kb]   (6175 Downloads)    
Article Type: Research Article | Subject: Vibration
Received: 2015/03/14 | Accepted: 2015/04/18 | Published: 2015/05/18

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.