A multi-axial, multimechanism based constitutive model for the comprehensive representation of the evolutionary response of SMAs under general thermomechanical loading conditions

Saleeb, A. F.; Padula, Santo; Kumar, Akhilesh

doi:10.1016/j.ijplas.2010.08.012

Cited by 141 publications

(78 citation statements)

References 99 publications

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“…A few SMA multi-dimensional constitutive models for complex thermo-mechanical loading have been proposed (Helm and Haupt, 2003;Moumni et al, 2008;Grabe and Bruhns, 2008;Morin et al, 2011;Saleeb et al, 2011 andAndani andElahinia, 2014). Most of these models incorporate the thermo-mechanical phenomena related to phase transformation as well as the effects of strain rate.…”

mentioning

confidence: 99%

Thermo-mechanical strain rate–dependent behavior of shape memory alloys as vibration dampers and comparison to conventional dampers

Gur

Mishra

Frantziskonis

2015

Journal of Intelligent Material Systems and Structures

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A study on shape memory alloy (SMA) materials as vibration dampers is reported. An important component is the strain rate and temperature dependent constitutive behavior of SMA, which can significantly change its energy dissipation capacity under cyclic loading. The constitutive model used accounts for the thermo-mechanical, strain rate dependent behavior and phase transformation. With increasing structural flexibility the hysteretic loops size of SMA dampers increases due to increasing strain rates, thus further decreasing the response of the structure to cyclic excitation. The structure examined is a beam and its behavior with SMA dampers is compared to the same beam with conventional dampers. Parametric studies reveal the superior performance of the SMA over the conventional dampers even at the resonance frequency of the beam-damper system. An important behavior of the SMA dampers is discovered, in that they absorb energy from the fundamental and from higher vibration modes. In contrast the conventional dampers transfers energy to higher modes. For the same beam control, the stiffness requirement for the SMA dampers is significantly less than that of the conventional dampers. Response quantities of interest show improved performance of the SMA over the conventional dampers under varying excitation intensity, frequency, temperature, and strain rate.

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mentioning

confidence: 99%

Thermo-mechanical strain rate–dependent behavior of shape memory alloys as vibration dampers and comparison to conventional dampers

Gur

Mishra

Frantziskonis

2015

Journal of Intelligent Material Systems and Structures

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“…Readily available tools for calculating SMA behaviors include manufacturer supplied material properties (e.g., [14]), engineering models (e.g., [8,15,16], and SMA constitutive models (e.g., [9,[17][18][19][20][21][22][23][24][25]). These tools vary in complexity, capability, and accuracy.…”

Section: Parametric Investigationmentioning

confidence: 99%

“…These range from microstructure models that can be used to study and predict effects of composition and processing (e.g., [23]) to phenomenological continuum models with a wide variety of features developed specifically for engineering components and devices (e.g., [9,[17][18][19][20]22]). Models of the latter class are traditionally implemented into commercial finite element packages to facilitate component simulations.…”

Section: Constitutive Modelsmentioning

confidence: 99%

Shape Memory Alloy Actuator Design: CASMART Collaborative Best Practices

Benafan

Brown

Calkins

et al. 2011

ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1

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Upon examination of shape memory alloy (SMA) actuation designs, there are many considerations and methodologies that are common to them all. A goal of CASMART's design working group is to compile the collective experiences of CASMART's member organizations into a single medium that engineers can then use to make the best decisions regarding SMA system design. In this paper, a review of recent work toward this goal is presented, spanning a wide range of design aspects including evaluation, properties, testing, modeling, alloy selection, fabrication, actuator processing, design optimization, controls, and system integration. We have documented each aspect, based on our collective experiences, so that the design engineer may access the tools and information needed to successfully design and develop SMA systems. Through comparison of several case studies, it is shown that there is not an obvious single, linear route a designer can adopt to navigate the path of concept to product. SMA engineering aspects will have different priorities and emphasis for different applications. INTRODUCTIONShape memory alloys (SMAs) have been a topic of significant research interest for over forty years. Microstructural complexities and their resulting thermomechanical properties have presented challenges in understanding how to integrate these materials into structural applications.Consequently, design of structural and mechanical systems involving SMA materials has been sparse and ad hoc. However, upon examination of a variety of system designs, there are many considerations and parameters that are common to them all. The Consortium for the Advancement of Shape Memory Alloy Research and Technology (CASMART) was established to foster sharing of technical knowledge about SMAs, to achieve new understanding of the materials, and to facilitate progress in applying that knowledge. The Design Working Group of CASMART strives to serve as a single location to capture the collective best practices, critical information and perspective necessary for designing systems involving SMA materials and actuators.The objective of this paper is to compile the experiences of the authors into a resource that can aid other engineers in SMA

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“…The eect of orientation has also been investigated in recent works (Ameduri et al, 2015;Sedlák et al, 2012;Saleeb et al, 2011;Saint-Sulpice et al, 2009). These models add the feature of simulating three-dimensional loading paths to previous simpler models (Boyd and Lagoudas, 1994;Brinson, 1993;Saleeb et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Modeling of coupled phase transformation and reorientation in shape memory alloys under non-proportional thermomechanical loading

Chatziathanasiou

Chemisky

Chatzigeorgiou

et al. 2016

International Journal of Plasticity

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. AbstractIn the present study, a new 3D thermodynamic coupled model is proposed for SMAs.The behavior of SMA structures is described through several strain mechanisms, each associated with its proper internal variables. This model is built to capture the particular behavior of SMAs when subjected to complex loading, namely non-proportional thermomechanical loading. To achieve this task, a new approach to describe the martensitic reorientation mechanism has been introduced in conjuction with a new method to account for forward and reverse transformation. Thermomechanical coupling, related to dissipation and latent heat is fully implemented. The validity of the model is demonstrated by comparing experimental results of complex thermomechanical loading paths of SMA structures with numerical simulations.

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A multi-axial, multimechanism based constitutive model for the comprehensive representation of the evolutionary response of SMAs under general thermomechanical loading conditions

Cited by 141 publications

References 99 publications

Thermo-mechanical strain rate–dependent behavior of shape memory alloys as vibration dampers and comparison to conventional dampers

Thermo-mechanical strain rate–dependent behavior of shape memory alloys as vibration dampers and comparison to conventional dampers

Shape Memory Alloy Actuator Design: CASMART Collaborative Best Practices

Modeling of coupled phase transformation and reorientation in shape memory alloys under non-proportional thermomechanical loading

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