Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Theodoros T Machairas"'
Publikováno v:
Journal of Intelligent Material Systems and Structures. 33:84-104
Morphing technology aims to improve the performance of structural components by drastically altering their shape in response to conflicting operational requirements. Thus, achieving the optimum operation of morphing structures is a rather challenging
Publikováno v:
Shape Memory and Superelasticity. 7:7-29
In this work the time response of pseudoelastic Shape Memory Alloy (SMA) wires is numerically simulated. In particular, the effect of their operation under partial phase transformation is investigated and quantified. Additionally, the effect of the t
Publikováno v:
Journal of Intelligent Material Systems and Structures. 30:2166-2185
The response of adaptive structures entailing shape memory alloy actuators is investigated both numerically and experimentally in this work. Emphasis is placed on the inclusion of large displacements and rotations, as well as thermomechanical couplin
Publikováno v:
Journal of Intelligent Material Systems and Structures. 30:1682-1698
The present article investigates and explores the effect of partial phase transformation on the response of shape adaptive/morphing structures controlled by shape memory alloy wire actuators subjec...
Active load alleviation potential of adaptive wind turbine blades using shape memory alloy actuators
Autor:
Dimitris I. Manolas, Vasilis A. Riziotis, Anargyros A. Karakalas, Dimitris A. Saravanos, Theodoros T Machairas
Publikováno v:
Wind Energy. 22:620-637
Publikováno v:
ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems.
Novel morphing structures show high potential in various engineering applications where shape adaptivity is deemed essential to achieve the optimum functionality under a wide range of operational conditions. Shape memory alloys have been selected as
Publikováno v:
Behavior and Mechanics of Multifunctional Materials XIII.
Multiple applications of shape memory alloys (SMA) involve operation under partial transformation (PT), where reversal of the transformation direction takes place while the material is in a mixed phase state. Typical applications of SMAs include: act
Autor:
Darren J. Hartl, Theodoros T Machairas, Dimitris A. Saravanos, Dimitris C. Lagoudas, Alexandros Solomou
Publikováno v:
Journal of Intelligent Material Systems and Structures. 27:2359-2384
This article describes the development and validation of a new thermomechanically coupled multi-layered shape memory alloy beam finite element. The finite element is formulated, assuming coupled equilibrium equations for the mechanical and thermal pr
Autor:
Theodoros Spathopoulos, Nikos Chrysohoidis, Alexandros Solomou, Vassilios Kappatos, Dimitrios Stamatelos, Dimitri Karagiannis, Theodoros T Machairas, Dimitrios A. Saravanos
Publikováno v:
Aircraft Engineering and Aerospace Technology. 86:295-306
Purpose – This study aims to develop an innovative actuator for improving the performance of future aircraft, by adapting the airfoil shape according to the flight conditions. The flap’s camber of a civil regional transportation aircraft’s trai
Publikováno v:
Journal of Intelligent Material Systems and Structures
The proposed article describes the development of a new beam finite element for the coupled thermomechanical analysis of shape memory alloy actuators. The element is formulated, assuming coupled equilibrium equations for the thermoelastic stresses an