کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8058689 | 1520087 | 2015 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Non-linear transient and damping analysis of a long cylindrical sandwich panel with embedded SMA wires
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Non-linear transient and damping analysis of a long cylindrical sandwich panel with embedded SMA wires Non-linear transient and damping analysis of a long cylindrical sandwich panel with embedded SMA wires](/preview/png/8058689.png)
چکیده انگلیسی
In this work, nonlinear dynamic analysis of a cylindrical sandwich panel with embedded SMA wires in the face sheets is performed taking into account the instantaneous and spatial martensite phase transformation. The Boyd and Lagoudas one-dimensional SMA constitutive equation is used to model the pseudoelastic behavior of the shape memory alloy wires. Since the martensite volume fraction depends on the stress distribution, the governing equations and the phase transformation kinetic equations are coupled together and therefore an iterative method is employed to solve the highly nonlinear equations. Moreover, considering that the stress resultants generated by the martensite phase transformation in the wires are path dependent values, an incremental method is used to estimate the increment of the stress resultants at each time step. A new finite-element-based procedure is proposed and Newmark time integration method is used to solve the finite element equations. The results show a gradual decrease in the amplitude of vibration as long as the SMA wires do not reach a fully elastic condition. This feature is of great interest for the vibration suppression of structures especially that which is related to resonance phenomena. Finally, the effect of various parameters such sector angle, operating temperature, wire volume fraction, through the thickness location of the wires and different boundary conditions on the vibration amplitude and loss factor is investigated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 47, December 2015, Pages 98-113
Journal: Aerospace Science and Technology - Volume 47, December 2015, Pages 98-113
نویسندگان
M. Khanjani, M. Shakeri, M. Sedighi,