Results 41 to 50 of about 4,530 (246)
Cyclic deformation of Ti-Ni alloy used for endovascular device [PDF]
Has been studied the possibility of using TiNi alloys with shape memory and pseudoelasticity as an implantation material for correction of functional mitral regurgitation endovascular device.
Morozova T.V.
doaj +1 more source
A shape memory alloy with the chemical composition Fe-14Mn-6Si-9Cr-5Ni (mass %) was produced by powder metallurgy (PM) from as-blended powders mixed with mechanically alloyed (MA’ed) powder volumes in amounts of 0, 10 and 20.
Elena Matcovschi +7 more
doaj +1 more source
A rate-independent model for the isothermal quasi-static evolution of shape-memory materials [PDF]
This note addresses a three-dimensional model for isothermal stress-induced transformation in shape-memory polycrystalline materials. We treat the problem within the framework of the energetic formulation of rate-independent processes and investigate ...
Auricchio, Ferdinando +2 more
core +4 more sources
Explicit finite element implementation of a shape memory alloy constitutive model and associated analyses [PDF]
Shape memory alloys (SMA) represent an important class of smart metallic materials employed in various innovative applications thanks to their unique thermomechanical behavior.
Auricchio, F. +5 more
core
Evaluation of the performance of ChatGPT‐4 and ChatGPT‐4o as a learning tool in endodontics
Abstract Aims The aim of this study was to evaluate the accuracy and consistency of responses given by two different versions of Chat Generative Pre‐trained Transformer (ChatGPT), ChatGPT‐4, and ChatGPT‐4o, to multiple‐choice questions prepared from undergraduate endodontic education topics at different times of the day and on different days ...
Esra Arılı Öztürk +2 more
wiley +1 more source
This study identifies a unique physical signature of colorectal cancer in younger adults: their tissues are mechanically stiffer than those in older patients with the same cancer. Furthermore, stromal remodeling in early‐onset colorectal cancer promotes epithelial mechanotransduction and proliferation, showing how mechanical alterations in the tissue ...
Nicole C. Huning +18 more
wiley +1 more source
Bending of pseudoelastic NiTi tubes
Abstract Tension induced phase transformation in pseudoelastic NiTi leads to inhomogeneous deformation with the austenitic and martensitic phases coexisting. Deformation of nearly 7% is recovered on unloading during which the deformation is again inhomogeneous.
Dongjie Jiang +3 more
openaire +1 more source
Elastic Energy Storage in Biological Materials: Internal Stresses and Their Functionality
Harnessing and storing internally generated elastic energy is a clever strategy by biological materials to perform functions like shape transformation, movement, and predation. This review explores how biological systems manipulate mechanisms like atomic or protein integration into minerals, protein conformational shifts, phase transitions, and osmotic
Shahrouz Amini +3 more
wiley +1 more source
In situ observation of NiTi transformation behaviour: A micro-macro approach [PDF]
A novel experimental investigation is presented of thermally and stress induced transformation behaviour of a Polycrystalline NiTi Shape Memory Alloy (SMA) plate for flexural-type applications: In situ techniques are employed to allow simultaneous ...
Rongong, J.A. +2 more
core +1 more source
Micromechanical Insights into Sinter‐Based Additively Manufactured NiTi with Nb as a Sintering Aid
This study investigates the microstructural and micromechanical behavior of NiTiNb made through filament‐based materials extrusion via chemically correlated nanoindentation. B19' remnants from the original powder lead to Nb gradients within NiTiNb grains due to the short sintering times required in liquid‐phase sintering.
Nerea Abando +4 more
wiley +1 more source

