... Abstract Copper-based shape memory alloys (Cu-SMA) are known for their high transition temperatures and therefore their potential for actuation applications in environments with higher temperatures than tolerable for binary NiTi. Due to the higher transition temperatures of Cu-SMA cooling rates...

... Abstract Shape memory alloys (SMA) are often used to drive actuators, whereby SMA have a very specific fatigue behavior, which influences the lifetime of these actuators. The optimization of the actuator’s lifetime is an important topic to make these innovative actuators more interesting...

... needles. In this study, an innovative active steerable needle with a single shape memory alloy (SMA) wire actuator is designed, fabricated, and tested for maneuver. A closed-loop Proportional Integral Derivative (PID) controller with position feedback is developed to control needle tip deflection in air...

... Abstract Actuators are key elements in almost every production plant and machine. Thermal shape memory alloys (SMA) have an enormous energy density and can be used as a structural component of the machine. The technology therefore represents an interesting alternative to conventional actuator...

... Abstract Predicting the stroke (respectively the strain) of binary Nickel-Titanium (NiTi) shape memory alloy (SMA) wires is a challenging, but interesting task for designers of SMA components. Due to fatigue the resulting stroke decreases with an increasing cycle count. In the past several...

... units placed at the base of the robot. Although these solutions allow preserving the lightweight nature of the active part, they affect the weight, size, and mobility of the total system. This paper presents a novel concept of a fully integrated continuum robotic endoscope driven by shape memory alloy...

... Abstract In line with target of the European Project “Shape Adaptive Blades for Rotorcraft Efficiency-SABRE”, that is to say, to mitigate the environmental impact of the rotorcraft, a Shape Memory Alloy (SMA) morphing twist systems was developed and related performance and impact predicted...

... Abstract Today, Nickel-Titanium (NiTi)-based shape memory alloy (SMA) wires are already used in a wide range of commercial actuator applications. The combination of their unique properties, such as their high energy density as well as their biocompatibility provides a broad range...

... Abstract For repeated actuation in shape memory alloy (SMA) actuators, a restoring force is needed to return to the initial starting position after activation. Therefore, SMA wires are often coupled with mechanical springs, which lengthen said wires again after activation through heating...

... of an helicopter blade. The architecture, based on Shape Memory Alloy technology, was tested in the abovementioned environments to get enough information on its functionality under representative loads and on its capability of producing significant variations of the original performance. The wind tunnel tests...

... such as shape memory alloys (SMAs) to make compression garments active and controllable. However, despite the advances in this field, accurate control of applied pressure on the body due remains a challenge due to vast population-scale anthropometric variability and intra-subjects variability in tissue softness...

... Abstract The mechanics of medical endoscopes have not fundamentally changed over the last 40 years. Most endoscopes are manually operated through Bowden cables to control the head of the device, which is known to have major limitations. We propose a shape memory alloy actuated setup to enable...

... Abstract Shape memory alloys (SMAs) are frequently used in a broad spectrum of commercially valuable and innovative applications due to its high specific energy density as an actuator and simple thermal actuation. This paper presents a study seeking to understand a recently discovered property...

... about the generated compound. shape memory alloy selective laser melting metal powder smart product welding Proceedings of the ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems SMASIS2021 September 14-15, 2021, Virtual, Online SMASIS2021-67650 INTEGRATION...

... Abstract This paper presents the design and testing of a bioinspired compliant suction cup with tunable elastic stiffness using shape memory alloy (SMA). We embedded SMA wires into a compliant suction cup for stiffness tuning. When the voltage is input, it increases the stiffness of the suction...

... Abstract In view of additive manufacturing and customized solutions, this paper describes the development of force sensors by combining DLP-printed components with shape memory alloys. The focus is on material investigations followed by FEM analysis for the development of topology-optimized...

... Abstract In this paper, the effective behavior of shape memory alloy (SMA) triply periodic minimal surface (TPMS) structures is investigated by means of finite element analysis and numerical homogenization. For this purpose, the onset and subsequent thresholds of phase transformation...

... Abstract This paper presents a novel shape memory alloy (SMA) valve actuator concept for active venting in injection molding applications. The developed system can be used to expel air which is trapped during the injection molding process. If such air bubbles are not properly removed from...

... of function and energy density, which conventional actuators can only fulfil to a limited extent. Thermal shape memory alloys are the basis of an actuator technology that can overcome these challenges, but have recently been researched and used mainly as wire actuators. The associated drawbacks regarding...

... Abstract Shape memory alloys (SMA) are used as an attractive technology in the field of actuators and sensors due to their versatile geometry, lightweight, high energy density, and low cost. The thermal activation principle, however, makes SMA application generally suitable for low-frequency...