Adaptive repair device concept with shape memory polymer

Zhao, Wei; Liu, Liwu; Lan, Xin; Su, Bo; Leng, Jinsong; Liu, Yanju

doi:10.1088/1361-665x/aa5595

Cited by 26 publications

(13 citation statements)

References 34 publications

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“…The sample size for E-SMP was 30 mm × 5 mm × 1 mm. According to the experimental references [ 59 , 60 ], the DMA measurements of the E-SMP material were obtained by increasing the temperature from 25 °C to 250 °C with a heat rate of 2 °C/min and applying sinusoidal alternating stress with an oscillation frequency of 1 Hz and a load of 0.01 N. Through experimental analysis, the maximum tan delta (phase angle) was obtained when the temperature reached up to 110 °C. It can be seen in Figure 1 that the E-SMPs had a glass transition temperature (

) of 110 °C, a high storage modulus of 2350 MPa (below

), and an electric driving effect.…”

Section: Mechanical Characterization Of the E-smpmentioning

confidence: 99%

Numerical Analysis of Space Deployable Structure Based on Shape Memory Polymers

Shi

Feng

et al. 2021

Micromachines

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Shape memory polymers (SMPs) have been applied in aerospace engineering as deployable space structures. In this work, the coupled finite element method (FEM) was established based on the generalized Maxwell model and the time–temperature equivalence principle (TTEP). The thermodynamic behavior and shape memory effects of a single-arm deployment structure (F-DS) and four-arm deployment structure (F-DS) based on SMPs were analyzed using the coupled FEM. Good consistency was obtained between the experimental data and simulation data for the tensile and S-DS recovery forces, verifying that the coupled FEM can accurately and reliably describe the thermodynamic behavior and shape memory effects of the SMP structure. The step-by-step driving structure is suitable for use as a large-scale deployment structure in space. This coupled FEM provides a new direction for future research on epoxy SMPs.

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) of 110 °C, a high storage modulus of 2350 MPa (below

), and an electric driving effect.…”

Section: Mechanical Characterization Of the E-smpmentioning

confidence: 99%

Numerical Analysis of Space Deployable Structure Based on Shape Memory Polymers

Shi

Feng

et al. 2021

Micromachines

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show abstract

“…However, in terms of the evaluation for their practical applications, little relevant work has been performed except for limited applications, such as so actuators, functional textures, and medical applications. [34][35][36][37][38][39][40] As for the reason, there is still a limited understanding of how SMPs might be applicable to different elds. Thus, with the aim of expanding applications of SMPs.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of gradient vapor grown carbon fiber based polyurethane foam for shape memory driven microwave shielding

et al. 2019

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“…SMPs have several advantages, including good recoverability, low density, easy processing, adjustable shape transition temperature, biodegradability, and biocompatibility . As a result, they are widely used in smart medical facilities, aerospace deployment devices, flexible electronic devices, 3D and 4D printing, and several many other fields . Conventional space deployment structures could complete structural changes by means of mechanical hinges, energy storage, or motor drive tools .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of smart diaphragm based on shape memory polymer

Tao

Liu

Yang

et al. 2018

J of Applied Polymer Sci

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Currently, tank diaphragms are mostly applied in the field of aerospace but one of their limitations have to do with their inability to recycle. In the article, we discussed the modeling of a new kind of reversible diaphragm, so‐called shape memory polymer (SMP) diaphragm. A thermo‐mechanical modeling of SMP is implemented by the finite element method using a constitutive model. A single variable in this model is defined and used to simplify the model compared to other existing models. Evolution of the analysis is conducted by making use of the intermediate difference forms and Jacobian matrix, which is applied to all quantities within the model. The overturning and recovery behaviors of the SMP diaphragm are examined. And, the effect of several parameters, including thickness, height and radius of the diaphragm, as well as temperature on the overturning performance are investigated. This study led to the establishment of an optimized model with the objective function requiring minimum overturning pressure for completing deformation and design variables associated with thickness, height, radius, and temperature. An optimized SMP diaphragm is obtained under the critical pressure constraints. The results contribute to the design and application of novel SMP diaphragms. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46557.

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Adaptive repair device concept with shape memory polymer

Cited by 26 publications

References 34 publications

Numerical Analysis of Space Deployable Structure Based on Shape Memory Polymers

Numerical Analysis of Space Deployable Structure Based on Shape Memory Polymers

Fabrication of gradient vapor grown carbon fiber based polyurethane foam for shape memory driven microwave shielding

Design and analysis of smart diaphragm based on shape memory polymer

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