Improving the damping behavior of fiber-reinforced polymer composites with embedded superelastic shape memory alloys (SMA)

Katsiropoulos, Ch.V.; Pappas, Panagiotis; Koutroumanis, Nikolaos; Kokkinos, A.; Galiotis, Costas

doi:10.1088/1361-665x/ab6026

Cited by 19 publications

(8 citation statements)

References 26 publications

(28 reference statements)

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“…DMA was employed to investigate the composites' storage modulus, loss modulus, and damping factor as a function of temperature and frequency. Katsiropoulus et al have studied the damping behavior of fiber-reinforced polymer composites using DMA [12]. They analyzed the effect of fiber type, fiber orientation, and matrix properties on the storage modulus, loss modulus, and damping factor.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and Relaxation of PEG polymer Chain Segment for Phase Change Materials (PCMs)

Fauziyah,

Sakinah,

Rachma

et al. 2023

J. Phys.: Conf. Ser.

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This work’s most notable memory concept for next-generation novels was a reversible phase shift in a substance called phase change materials (PCMs). Here, a polyethylene glycol (PEG) polymer relaxation study employing DMA will be conducted to investigate the qualities of PCMs as superior materials. Through the method of wet mixing, PEG polymer with reinforcement made of silica was synthesized. The variation of silica xerogel was a composition of up to 20% silica xerogel. Adding silica is quite good in reducing the loss factor up to 50 MPa at the addition of 20% silica xerogel. This condition was due to the bonds formed in the polymer chain causing shrinkage and flexibility of composites. Due to the addition of silica xerogel as filler, we can study the relaxation behavior and loss factor of a material using DMA and learn more about its viscoelastic characteristics, including its capacity to absorb vibrations, resistance to impacts, and overall mechanical performance at various temperatures. Relaxation was frequently used to describe phase change materials (PCMs), especially when discussing their capacity to store thermal energy. The release or absorption of thermal energy by a PCM during its phase transition was referred to as the relaxation process.

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Section: Introductionmentioning

confidence: 99%

Dynamic and Relaxation of PEG polymer Chain Segment for Phase Change Materials (PCMs)

Fauziyah,

Sakinah,

Rachma

et al. 2023

J. Phys.: Conf. Ser.

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“…Under static loading condition, up to 4 wt% of shape memory alloy reinforcement, the GFRP exhibit enhanced flexure resistance. Katsiropoulos et al [ 21 ] improved the damping behavior of fiber reinforced polymer composites with embedded superelastic SMA. It was found that the addition of Ni-Ti wires into the aramid/epoxy composite leads to a significant modification of its damping, which depends strongly on wire volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Flexural Behavior of Shape Memory Alloy Hybrid Composites Laminates

Zhao

Zhang

et al. 2022

Polymers

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In this paper, experiments and finite element analysis methods were adopted to study the flexural performance of shape memory alloy hybrid composites (SMAHC). The effect of embedding content and position of shape memory alloy (SMA) wire on the flexural properties of composite laminates was analyzed, and the optimal content and position of SMA wire were obtained. The optimal number of SMA wires for SMAHC laminates (B-2) is four. Compared with GFRP laminates, the flexural modulus of B-2-4 laminates increases by 5.19%, while the strength decreases by 5.76% on average. The finite element model of the SMAHC laminate was established by using ABAQUS finite element analysis software, and the validity of the model was verified by the comparison between the simulation results and the experimental results. The microscopic morphology results show that the weak interface between the matrix and SMA has a certain influence on the flexural performance of SMAHC specimens.

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“…Consequently, there is great interest in portable lightweight devices, where actuation is based on shape memory alloys (SMA). Additionally, SMAs can be embedded in a polymeric matrix to gain actuation capabilities [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Consequences of Dynamically Loaded NiTi Wires under Typical Actuator Conditions in Rehabilitation and Neuroscience

Çakmak

Major

Fischlschweiger

2021

JFB

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In the field of rehabilitation and neuroscience, shape memory alloys play a crucial role as lightweight actuators. Devices are exploiting the shape memory effect by transforming heat into mechanical work. In rehabilitation applications, dynamic loading of the respective device occurs, which in turn influences the mechanical consequences of the phase transforming alloy. Hence in this work, dynamic thermomechanical material behavior of temperature-triggered phase transforming NiTi shape memory alloy (SMA) wires with different chemical compositions and geometries was experimentally investigated. Storage modulus and mechanical loss factor of NiTi alloys at different temperatures and loading frequencies were analyzed under force-controlled conditions. Counterintuitive storage modulus- and loss factor-dependent trends regarding the loading frequency dependency of the mechanical properties on the materials’ composition and geometry were, hence, obtained. It was revealed that loss factors showed a pronounced loading frequency dependency, whereas the storage modulus was not affected. It was shown that force-controlled conditions led to a lower storage modulus than expected. Furthermore, it turned out that a simple empirical relation could capture the characteristic temperature dependency of the storage modulus, which is an important input relation for modeling the rehabilitation device behavior under different dynamic and temperature loading conditions, taking directly into account the material behavior of the shape memory alloy.

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Improving the damping behavior of fiber-reinforced polymer composites with embedded superelastic shape memory alloys (SMA)

Cited by 19 publications

References 26 publications

Dynamic and Relaxation of PEG polymer Chain Segment for Phase Change Materials (PCMs)

Dynamic and Relaxation of PEG polymer Chain Segment for Phase Change Materials (PCMs)

Finite Element Analysis of Flexural Behavior of Shape Memory Alloy Hybrid Composites Laminates

Mechanical Consequences of Dynamically Loaded NiTi Wires under Typical Actuator Conditions in Rehabilitation and Neuroscience

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