Journal ArticleDOI
The role of texture in tension–compression asymmetry in polycrystalline NiTi
Ken Gall,Huseyin Sehitoglu +1 more
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In this paper, a micro-mechanical model is used which incorporates single crystal constitutive relationships and experimentally measured polycrystalline texture into the self-consistent formulation.About:
This article is published in International Journal of Plasticity.The article was published on 1999-03-01. It has received 308 citations till now. The article focuses on the topics: Texture (crystalline) & Compression (physics).read more
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Thermomechanics of shape memory polymers: Uniaxial experiments and constitutive modeling
TL;DR: In this paper, the thermomechanics of shape storage and recovery of an epoxy resin is systematically investigated for small strains (within ± 10%) in uniaxial tension and uniaxonial compression.
Journal ArticleDOI
Tension–compression asymmetry of the stress–strain response in aged single crystal and polycrystalline NiTi
TL;DR: In this paper, the tensile and compressive stress-strain behaviors were established on aged single crystals ([100, [110], and [111] orientations) and polycrystalline NiTi materials.
Journal ArticleDOI
Mechanical fatigue and fracture of Nitinol
TL;DR: In this article, the authors review the existing knowledge base on the fatigue of Nitinol, both in terms of their stress or strain life (total life) and damage tolerant (crack propagation) behaviour, together with their fracture toughness properties.
Journal ArticleDOI
Stress dependence of the hysteresis in single crystal NiTi alloys
TL;DR: In this article, a micro-mechanical model based on reversible thermodynamics was modified to account for plastic relaxation of coherent transforming interfaces, and the predictions account for the growing hysteresis with increasing external stress.
Journal ArticleDOI
Compressive response of NiTi single crystals
Huseyin Sehitoglu,Ibrahim Karaman,Robert A. Anderson,Xuan Zhang,Ken Gall,Hans Jürgen Maier,Y.I. Chumlyakov +6 more
TL;DR: In this article, the deformation of NiTi shape memory single crystals is reported under compression loading for selected crystal orientations and two diAerent Ti3Ni4 precipitate sizes, and the theoretical estimates of transformation strains are established for Type I and Type II twinning cases to cover all possible habit plane and twin systems.
References
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Book
Micromechanics of defects in solids
Toshio Mura,D. M. Barnett +1 more
TL;DR: In this paper, the authors present numerical simulation of intergranular and transgranular crack propagation in ferroelectric polycrystals using double kink mechanisms for discrete dislocations in BCCs.
Book
Engineering Aspects of Shape Memory Alloys
TL;DR: An introduction to martensite and shape memory, CMWayman and TWDuerig shape memory and transformation behavior of mariensitic Ti-Pd-Ni andTi-Pt-Ni alloys, PGLindquit and CMMayman the mechanical aspects of constrained recovery, JLProft and TWduerig the design of electrical interconnection systems with shape memory alloys as mentioned in this paper, ECydzik actuator and work production devices.
Journal ArticleDOI
A thermodynamical constitutive model for shape memory materials. Part I. The monolithic shape memory alloy
TL;DR: In this paper, the shape memory effect due to martensitic transformation and reorientation of polycrystalline shape memory alloy (SMA) materials is modeled using a free energy function and a dissipation potential.
Journal ArticleDOI
On the nucleation and propagation of phase transformation fronts in a NiTi alloy
John A. Shaw,Stelios Kyriakides +1 more
TL;DR: In this article, the deformation history of NiTi was established by photographically recording surface changes of a brittle coating as austenite-martensite phase transition fronts traverse the specimen.
Journal ArticleDOI
Micromechanics modelling for the constitutive behavior of polycrystalline shape memory alloys. I: Derivation of general relations
Qingping Sun,Keh-Chih Hwang +1 more
TL;DR: In this article, a micromechanics constitutive model has been proposed to describe the pseudoelastic and shape memory behavior of polycrystalline shape memory alloys under various temperatures.