SMA Biomedical Applications

Auricchio, Ferdinando; Boatti, Elisa; Conti, Michele

doi:10.1016/b978-0-08-099920-3.00011-5

Cited by 33 publications

(17 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application of SMAs depends on the phase transformation temperatures, mechanical and functional properties, type of loading (static, cyclic and thermo-mechanical). SMA are increasingly used in machine parts, implants [1,2]. Due to the high ability to energy dissipation, SMA are used in damping devices for civil engineering [3][4][5][6] or other structural elements [7,8].…”

mentioning

confidence: 99%

The effect of temperature on low-cycle fatigue of shape memory alloy

Iasnii

Ясній

Baran

et al. 2019

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

The influence of temperature on the fatigue properties of pseudoelastic NiTi under low-cycle fatigue are investigated. Tests were performed under the uniaxial tensile deformation (pull-pull) at 0°С and 20°С which is above the austenite finish temperature. Experimental results indicate that the fatigue life of NiTi alloy increases with the decrease of test temperature from 20°С to 0°С in the case of presenting the results depending on the strain range and dissipated energy. Regardless the test temperature, with the increase of number of cycles to failure, the stress and strain ranges, as well as the dissipation energy decrease, and the total dissipation energy and Odqvist's parameter increase. The slope of the fatigue curves of NiTi alloy is greater at the temperature of 0°С in comparison with the 20°С in the case of employing the stress range, strain range, Odqvist's parameter, and total dissipation energy as the failure criteria, and is less while employing the dissipation energy as the failure criterion.

show abstract

mentioning

confidence: 99%

The effect of temperature on low-cycle fatigue of shape memory alloy

Iasnii

Ясній

Baran

et al. 2019

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

show abstract

“…In some medical uses, we can find one more great class of SMAs, commercially known as body temperature (B) alloys, which have Af very close to the human body temperature and that need an extra heating to complete the transformation into the austenite phase [17][18][19][20][21][22]. After the implantation in a human being, the B-type SMA remains in the austenite state and performs according to the flagshaped pseudoelastic behavior.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

A new design of a Nitinol ring-like wire for suturing in deep surgical field

Nespoli

Dallolio²,

Villa

et al. 2015

Materials Science and Engineering: C

View full text Add to dashboard Cite

“…Although SMAs are manufactured in a variety of shapes, including plates, springs, wires, and ribbons, the most widely used shape is the onedimensional SMA wire, which can be integrated into soft matrices to fabricate actuators that transform one-dimensional deformation of the SMA wires into a broad range of three-dimensional deformations. For instance, Rodrigue et al developed soft actuators comprised of a polydimethylsiloxane (PDMS) matrix embedded with Nitinol (Nickel-Titanium) SMA wires arranged in different configurations to create a variety of bending [2][3][4][5], twisting [6][7][8], and extensional [9] actuators, which have potential applications in soft robotics [10][11][12], aerospace [13,14], and biomedical [15,16] fields.…”

Section: Introductionmentioning

confidence: 99%

Multimaterial 3D Printed Soft Actuators Powered by Shape Memory Alloy Wires

Akbari

Sakhaei

Panjwani

et al. 2019

Sensors and Actuators A: Physical

View full text Add to dashboard Cite

Shape memory alloys (SMAs) have been widely used to fabricate soft actuators by embedding SMA wires into various soft matrices manufactured by conventional moulding methods or novel threedimensional (3D) printing techniques. However, soft matrices of SMA based actuators are typically fabricated from only one or two different materials. Here, we exploit the great manufacturing flexibility of multimaterial 3D printing to fabricate various bending, twisting and extensional actuators by precisely controlling the spatial arrangements of different printing materials with different stiffnesses. In order to achieve a broad range of deformations, ten different printing materials were characterized and used in the actuators design. In addition, we developed a finite element model to simulate complex deformations of the printed actuators and facilitate the design process. The model incorporates a user defined material subroutine that describes the nonlinear temperature dependant behavior of SMAs. The results show the efficiency and flexibility of multimaterial 3D printing in tailoring the deformed shape of the SMA based soft actuators, which cannot be accomplished using conventional manufacturing methods such as moulding.

show abstract

SMA Biomedical Applications

Cited by 33 publications

References 63 publications

The effect of temperature on low-cycle fatigue of shape memory alloy

The effect of temperature on low-cycle fatigue of shape memory alloy

A new design of a Nitinol ring-like wire for suturing in deep surgical field

Multimaterial 3D Printed Soft Actuators Powered by Shape Memory Alloy Wires

Contact Info

Product

Resources

About