..., which change the coolant viscosity and thus the pressure conditions in the pump. In order to adapt the operating point to the current temperature, one option is to change the blade geometry of the rotating impeller. Shape-memory-alloys (SMA) are perfectly suited to fulfil this task. However...

... Abstract Shape Memory Alloys (SMA) are thermosensitive materials that can change their geometry when a certain temperature is reached. Compared to conventional drives SMA based actuator systems provide many advantages and have already been successfully established on the market in various...

... Abstract Advancements in the design of knitted Shape Memory Alloy (SMA) actuators have produced highly functional and easy-to-wear advanced textiles with variable fit/stiffness properties. Annealing SMA at high temperatures can alter their thermomechanical properties; however, heat treatments...

...-rigid body model is proposed. The model incorporates the mechanics of shape memory alloy (SMA) behavior in a folding C3M design. The combined application of pseudo-rigid body modeling and SMAs allows for the prediction of large recoverable deformations through superelasticity. In previous work...

... Proceedings of the ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS2021 September 14-15, 2021, Virtual, Online SMASIS2021-68259 DEVELOPMENT OF A RELEASABLE SNAP-FIT CONNECTOR BASED ON SHAPE MEMORY ALLOY ACTUATORS Kenny Pagel Arne Wiechmann Welf-Guntram...

...A PHENOMENOLOGICAL MODEL FOR SHAPE MEMORY ALLOYS WITH UNIFORMLY DISTRIBUTED POROSITY Wael Zaki Department of Mechanical Engineering Khalifa University P.O. Box 127788 Abu Dhabi, UAE Email: wael.zaki@ku.ac.ae NV Viet Department of Mechanical Engineering Khalifa University P.O. Box 127788 Abu Dhabi...

... that pseudoelastic shape memory alloys (SMA) are potentially suitable for use in sports and rehabilitation equipment and offer additional value in the area of training flexibility combined with high training resistance. Therefore, the properties of pseudoelastic SMAs for this application were investigated...

...ADAPTIVE MATERIAL HANDLING SYSTEM BASED ON SHAPE MEMORY ALLOY ACTUATORS Lukas Zimmer1, Felix Welsch2, Susanne-Marie Kirsch2, Gianluca Rizzello2, Stefan Seelecke2, Paul Motzki1,2 1Center for Mechatronics and Automation Technologies (ZeMA gGmbH), Saarbrücken, Germany 2Department of Systems...

... in response to impact or variable air permeability. Active textiles are traditional textile structures that integrate smart materials, such as shape memory alloys, shape memory polymers, or carbon nanotubes, to enable spatial actuation behavior, such as contraction for on-body compression or corrugation...

...NUMERICAL EVALUATION OF THE EFFECT OF NI4TI3 PRECIPITATES ON THE OVERALL THERMO-MECHANICAL RESPONSE OF NITI SHAPE MEMORY ALLOYS Austin Cox Theocharis Baxevanis Dimitris Lagoudas Department of Aerospace Engineering, Texas A&M University, College Station, Texas 77840 ABSTRACT The effect...

...ON THE ENERGY RELEASE RATE DURING GLOBAL THERMO-MECHANICALLY-INDUCED PHASE TRANSFORMATION IN SHAPE MEMORY ALLOYS Antonino Parrinello Theocharis Baxevanis Dimitris Lagoudas Department of Aerospace Engineering, Texas A&M University College Station, Texas 77840 ABSTRACT In this work, the effect...

...IMPACT OF LENGTH MISMATCH ON THE FATIGUE LIFE OF PARALLEL SHAPE MEMORY ALLOY WIRES Christopher B. Churchill Anthony Bedegi HRL Laboratories, 3011 Malibu Canyon Road, Malibu, CA 90265 Xiujie Gao General Motors R&D Center, 30500 Mound Rd. Warren MI 48090 United States ABSTRACT Shape memory alloy (SMA...

... Station, Texas, 77840 ABSTRACT Shape Memory Alloy (SMA) composites are being increas- ingly investigated to address a variety of engineering problems. An application of growing interest is an SMA-MAX phase ce- ramic composite for use in extreme environments. By joining these two constituents...

... A new hybrid shape memory alloy (SMA)-ceramic composite is being developed for use in extreme environments. The proposed composition is intended to address past issues with brittle failure in the ceramic phase by generating a compressive residual stress state in that phase. This biasing load...

... A finite-element analysis of stable crack growth in superelastic Shape Memory Alloys (SMAs) is carried out for plane strain, mode I loading. The small-scale transformation assumption is employed in the calculations using displacement boundary conditions on a circular region that encloses...

... In this work, the influence of the latent heat of transformation and heat transfer on the performance of shape memory alloy (SMA) actuators is numerically explored. A 1D analytical model is first considered and used to perform parametric studies on the effects of geometry and heat transfer...

... 08 02 2012 The capability of using recoverable martensitic transformation to modify the residual stress-state of hybrid Shape Memory Alloy (SMA) composites is explored. It is shown that through careful selection of a thermomechanical loading path the composite can be “processed...

...Proceedings of ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS 2011 September 18-21, 2011, Phoenix, Arizona, USA SMASIS2011-5199 PLANAR RF ANTENNA RECONFIGURATION WITH NI-TI SHAPE MEMORY ALLOYS P.J. Wolcott M.J. Dapino Smart Materials and Structures...