Properties and response of composite material with spheroidal superelastic shape memory alloy inclusions subject to three-dimensional stress state

Birman, Victor

doi:10.1088/0022-3727/43/22/225402

Cited by 13 publications

(3 citation statements)

References 17 publications

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“…A comprehensive review on this issue is available in [7]. In [8] Birman illustrated a two-step approach in the strength and stiffness analyses of fibre reinforced particulate-matrix composites obtained through a generalization of available micromechanical solutions available for three-phase materials. The numerical analysis shows that adding stiff particles to the matrix results in a significant enhancement of the transverse strength and stiffness.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Method to Model Non-linear Damping Behaviour of Martensitic Shape Memory Alloys

et al. 2018

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This article investigates the efficiency of hybridizing composites with thin layers of martensitic shape memory alloys for improvement of damping. The non-linear damping behaviour of martensitic shape memory alloys is simulated using a modified version of Masing’s rules. The model was implemented in a user subroutine of a finite element code, and validated by a numerical simulation of experimental hysteresis loops at different maximum strain amplitudes. The experimental free decay of hybridized glass fiber reinforced polymer beams was simulated using the finite element model, including the validated model of the investigated materials. The amplitude-dependent damping of the hybrid beams in free decay was reproduced successfully in the numerical analysis and it was proven that the hybridization technique is efficient for improvement of damping.

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Section: Introductionmentioning

confidence: 99%

A Numerical Method to Model Non-linear Damping Behaviour of Martensitic Shape Memory Alloys

et al. 2018

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“…13b). Birman [57,58] developed a similar numerical scheme to investigate the effect of randomly distributed SMA spheroidal particles on the effective thermomechanical properties [57] and stress-strain loop reflecting hysteresis of fiber-reinforced polymer composites and on the stress states of SMA particle reinforced MMCs [58]. The Mori-Tanaka homogenization technique was used at both levels to develop relations between the properties of the composite material and the applied stresses.…”

Section: Mean-field Approachesmentioning

confidence: 99%

Review and perspectives: shape memory alloy composite systems

et al. 2015

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Following their discovery in the early 60's, there has been a continuous quest for ways to take advantage of the extraordinary properties of shape memory alloys (SMAs). These intermetallic alloys can be extremely compliant while retaining the strength of metals and can convert thermal energy to mechanical work. The unique properties of SMAs result from a reversible difussionless solid-to-solid phase transformation from austenite to martensite. The integration of SMAs into composite structures has resulted in many benefits, which include actuation, vibration control, damping, sensing, and selfhealing. However, despite substantial research in this area, a comparable adoption of SMA composites by industry has not yet been realized. This discrepancy between academic research and commercial interest is largely associated with the material complexity that includes strong thermomechanical coupling, large inelastic deformations, and variable thermoelastic properties. Nonetheless, as SMAs are becoming increasingly accepted in engineering applications, a similar trend for SMA composites is expected in aerospace, automotive, and energy conversion and storage related applications. In an effort to aid in this endeavor, a comprehensive overview of advances with regard to SMA composites and devices utilizing them is pursued in this paper. Emphasis is placed on identifying the characteristic responses and properties of these material systems as well as on comparing the various modeling methodologies for describing their response. Furthermore, the paper concludes with a discussion of future research efforts that may have the greatest impact on promoting the development of SMA composites and their implementation in multifunctional structures.

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“…Similar methods has been used in [5], [6], to model the structural effects of precipitates in polycrystalline SMAs. In addition, in [7]- [9] Mori-Tanaka based micromechanical approaches has been adopted to predict the inelastic behavior in SMA composites.…”

Section: Introductionmentioning

confidence: 99%

Micromechanical Modeling of Precipitation Hardened NiTiHf

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Baxevanis

et al. 2018

MSF

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Actuation response of NiTiHf high temperature SMAs can be enhanced by means of suitable heat treatment on the material through precipitation hardening. Heat treatments can be chosen carefully to improve the performance of the NiTiHf SMAs in order to meet the requirements of targeted applications to design more robust and efficient high temperature solid-state actuator systems. The present work aims to develop a novel approach to model and predict the behavior of heat-treated NiTiHf SMAs. The predictions of the thermomechanical response of NiTiHf SMAs are based on Representative Volume Elements (RVEs). The precipitated NiTiHf SMA is modeled as a composite consist of of thermo-elastic non-transforming precipitates and a polycrystalline SMA matrix. The structural effect of precipitates and the effect of Hf-concentration gradient resulted from Hf depletion during precipitation are included. The composition distribution resulting from the elemental depletion and the transformation temperature distributions in the SMA matrix are related. In the present work, these relations are developed from experimental measurements on several NiTiHf compositions. Thermo-mechanical responses of Ni50.3Ti29.7Hf20heat-treated at 500°C for 48h at different loading conditions are predicted and the correlations with experimental results demonstrate the validity of the proposed framework.

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Properties and response of composite material with spheroidal superelastic shape memory alloy inclusions subject to three-dimensional stress state

Cited by 13 publications

References 17 publications

A Numerical Method to Model Non-linear Damping Behaviour of Martensitic Shape Memory Alloys

A Numerical Method to Model Non-linear Damping Behaviour of Martensitic Shape Memory Alloys

Review and perspectives: shape memory alloy composite systems

Micromechanical Modeling of Precipitation Hardened NiTiHf

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