Investigation of Dog-Bone Geometry for Simple Tensile Test of Pseudoelastic Shape Memory Alloys

Jamalimehr, Amin; Ravanbakhsh, Hossein; Kadkhodaei, Mahmoud; Kamrani, Mehdi

doi:10.1007/s40997-016-0037-1

Cited by 5 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental results during loading show a deviation from linearity before the localized transformation. This is caused by premature transformations in some parts of the specimen due to complicated effects of stress concentration and variations in geometry of the test sample near the grippers (Jamalimehr et al, 2016). These effects appear in the overall stress–strain response of the whole specimen in simple tension test of a dog-bone specimen, and these details are not taken into account in the present model.…”

Section: Numerical Resultsmentioning

confidence: 99%

A non-local implicit gradient-enhanced model for thermomechanical behavior of shape memory alloys

Badnava

Mashayekhi

Kadkhodaei

et al. 2018

Journal of Intelligent Material Systems and Structures

Self Cite

View full text Add to dashboard Cite

A three-dimensional, implicit gradient-enhanced, fully coupled thermomechanical constitutive model is developed within the framework of thermodynamic principles for NiTi shape memory alloys. This work focuses on unstable behaviors of NiTi samples under different thermomechanical loading conditions. Temperature variation and its coupling effect on non-local behavior of a shape memory alloy during a loading–unloading cycle at different strain rates are considered. The proposed constitutive equations are implemented into the finite element software ABAQUS, and the numerical investigations indicate that the used procedure is an effective computational tool for simulation of several behaviors of NiTi samples including phase front nucleation and propagation, stress–strain–temperature responses, and transformation-induced stress relaxation. The obtained results are shown to be in a good agreement with available experimental and numerical findings in the literature. The effectiveness of the model in removing mesh sensitivity is evaluated by investigating the mesh-dependence issue for the low strain rate problems through numerical examples.

show abstract

Section: Numerical Resultsmentioning

confidence: 99%

A non-local implicit gradient-enhanced model for thermomechanical behavior of shape memory alloys

Badnava

Mashayekhi

Kadkhodaei

et al. 2018

Journal of Intelligent Material Systems and Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…Zhang and Sheng (2016) investigated the stability and nonlinear vibration of a Ni-Ti SMA hybrid laminated composite panel under aerodynamic and uniform thermal loads using Galerkin method, based on the Routh–Hurwitz criteria. A good number of experimental works (Heresi et al, 2014; Jamalimehr et al, 2016) has been carried out to examine the damping ability of SMA.…”

Section: Introductionmentioning

confidence: 99%

Post-buckling analysis of non-uniformly heated functionally graded cylindrical shells enhanced by shape memory alloys using classical lamination theory

Mirzavand

Pourmohammad

2019

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

Thermal post-buckling analysis of functionally graded cylindrical shells enhanced by shape memory alloys under uniform and non-uniform heating is presented in this article. Nonlinear equilibrium equations are derived based on the classical lamination theory and von-Karman nonlinear kinematic relations and post-buckling field is investigated using Galerkin method. For temperature dependency of material properties, a numerical solution is applied to solve the nonlinear equilibrium equation using finite difference method to solve the nonlinear heat conduction equation and layered model to evaluate the thermal stress of hybrid cylindrical shells. A closed-form solution is also presented for temperature independency of material properties. Brinson model is adopted to describe the thermo-mechanical behavior of shape memory alloys. Numerical results are presented for evaluating the effects of shape memory alloy layer and functionally graded material cylindrical shells properties on suppressing of the post-buckling path of hybrid cylindrical shells.

show abstract

Thermomechanical characterization of NiTi shape memory alloy using universal testing machine: A perspective

Karunakaran

Majid

Jaafar

et al. 2024

Comprehensive Materials Processing

View full text Add to dashboard Cite

Investigation of Dog-Bone Geometry for Simple Tensile Test of Pseudoelastic Shape Memory Alloys

Cited by 5 publications

References 24 publications

A non-local implicit gradient-enhanced model for thermomechanical behavior of shape memory alloys

A non-local implicit gradient-enhanced model for thermomechanical behavior of shape memory alloys

Post-buckling analysis of non-uniformly heated functionally graded cylindrical shells enhanced by shape memory alloys using classical lamination theory

Thermomechanical characterization of NiTi shape memory alloy using universal testing machine: A perspective

Contact Info

Product

Resources

About