Eventos Anais de eventos
CREEM2025
CREEM 2025 - XXXI Congresso Nacional de Estudantes de Engenharia Mecânica Congresso Nacional de Estudantes de Engenharia Mecânica
Applications of Ni-Ti wires shape memory training on actuators
Submission Author:
Eduardo Enrique Montiel Younis , Brazil
Co-Authors:
Eduardo Enrique Montiel Younis, Pedro Mello, Paulo José Paupitz Gonçalves, Fabio Mazzariol Santiciolli
Presenter: Eduardo Enrique Montiel Younis
doi://10.26678/ABCM.CREEM2025.CRE2025-0043
Abstract
This study aims to investigate the shape memory properties of nickel-titanium (Ni-Ti) shape memory alloys (SMAs) and develop a high-performance SMA-based actuator leveraging the thermally driven shape memory effect. The objectives include understanding the thermomechanical behavior of Ni-Ti wires, implementing unidirectional shape programming, and fabricating a compact actuator for dynamic applications. The methodology encompasses a comprehensive literature review to establish foundational knowledge, finite element modeling to simulate thermomechanical responses, and mathematical modeling to predict actuator performance. Shape programming protocols will train Ni-Ti wires under controlled pre-strain and temperature conditions, followed by actuator fabrication integrating trained wires with elastic return mechanisms. Experimental testing will evaluate actuation speed, stroke length, and load capacity, with data analysis comparing results to conventional actuators and validating predictive models. The study is expected to demonstrate precise control over displacement and force through repeatable shape memory effects. Key conclusions highlight the viability of Ni-Ti SMA actuators as compact, high-work-density alternatives to traditional systems, addressing challenges like cooling rates and paving the way for applications in biomedical, aerospace, and robotic systems requiring adaptive mechanical control.
Keywords
actuator, Ni-Ti wires, Shape Memory Alloy, Shape Memory Training
