Vibration analysis of a micro-cylindrical sandwich panel with reinforced shape-memory alloys face sheets and porous core

2021 ◽  
Vol 136 (8) ◽  
Author(s):  
A. Amiri ◽  
M. Mohammadimehr ◽  
M. Irani Rahaghi
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Vibration Analysis ◽  
Sandwich Panel ◽  
Porous Core

scholarly journals A novel concept of modular shape-adaptable sandwich panel with distributed actuation based on shape memory alloys

2021 ◽  
pp. 1045389X2110572
Author(s):  
Oleg Testoni ◽  
Sandro Christen ◽  
Sampada Bodkhe ◽  
Andrea Bergamini ◽  
Paolo Ermanni
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Sandwich Panel ◽  
Element Model ◽  
Image Correlation ◽  
Compliant Joints ◽  
Actuation System ◽  
Out Of Plane ◽  
Correlation System ◽  
Novel Concept

This work introduces a novel concept of modular, shape-adaptable sandwich panel with a distributed actuation system based on shape memory alloys (SMA). The panel consists of a modular arrangement of rigid cells connected with compliant active joints. Each joint hosts a SMA wire, which can be controlled independently, enabling the panel to achieve multiple shapes and complex curvatures with a single design. A numerical model of the actuators is developed combining the SMA model proposed by Brinson with a finite element model of the compliant joints, and validated against experimental results. Further, a demonstrator of the panel is manufactured and tested implementing four different actuation patterns and measuring the final shapes with a digital image correlation system. The results prove the capability of the proposed concept to achieve both in plane and out-of-plane deformations in the order of millimeters to centimeters, and to reproduce shapes with double curvatures. With the possibility to integrate sensors and additional components inside the core, the proposed shape-adaptable panel can be used to realize smart structures, which might be used for morphing aerodynamic surfaces or reconfigurable space structures.

Atomic Order and Martensitic Transformation in Cu-Al-Be Shape Memory Alloys

1995 ◽  
Vol 05 (C8) ◽  
pp. C8-973-C8-978
Author(s):  
M. Jurado ◽  
Ll. Mañosa ◽  
A. González-Comas ◽  
C. Stassis ◽  
A. Planes
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Atomic Order

Concentration, temperature and deformation dependences of martensite lattice parameters in binary Ti-Ni shape memory alloys

2003 ◽  
Vol 112 ◽  
pp. 651-654 ◽  
Author(s):  
S. D. Prokoshkin ◽  
V. Brailovski ◽  
S. Turenne ◽  
I. Yu Khmelevskaya ◽  
A. V. Korotitskiy ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Lattice Parameters

Electron microscopy study of microtexture in Cu-Al-Ni shape memory alloys processed by powder metallurgy

2003 ◽  
Vol 112 ◽  
pp. 615-618 ◽  
Author(s):  
P. P. Rodriguez ◽  
J. San Jean ◽  
A. Iza-Mendia ◽  
V. Recarte ◽  
J. J. Pérez-Landazabal ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Powder Metallurgy ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Microscopy Study ◽  
Electron Microscopy Study
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