Design, material properties and performances of a smart hinge based on shape memory polymer composites

Liu, Zhengxian; Lan, Xin; Bian, Wenfeng; Liu, Liwu; Li, Qifeng; Liu, Yanju; Leng, Jinsong

doi:10.1016/j.compositesb.2020.108056

Cited by 40 publications

(11 citation statements)

References 30 publications

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“…The dimensions of the shape memory alloy used as a damping mechanism were selected considering the torque applied by the tape-spring. The use of SMM has been a point of interest for several studies [54,128,132,133,139,141], which are not within the scope of the present review. For more information and for an updated review on the use of SMM in deployable systems, the interested reader is referred to [132,141].…”

Section: Design Of Composite Deployable Structuresmentioning

confidence: 99%

Design and optimization of self-deployable damage tolerant composite structures: A review

Fernandes

Pinto

Correia

2021

Composites Part B: Engineering

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Section: Design Of Composite Deployable Structuresmentioning

confidence: 99%

Design and optimization of self-deployable damage tolerant composite structures: A review

Fernandes

Pinto

Correia

2021

Composites Part B: Engineering

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“…23,24 Thus far only a few prototype SMPC applications have been monitored during their shape memory process at the actual operational environment. [25][26][27] The performance evaluation and process monitoring techniques currently used for large SMPC components are given in Table 1. The major limitation of these existing methods is that the simultaneous measuring of multiple locations over a SMPC component that are subjected to concurrent shape memory processes.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, surface‐mounted fiber Bragg grating (FBG) sensors have the ability to measure temperature and strain variations for a short distance (approximately 1 cm) on an SMPC 23,24 . Thus far only a few prototype SMPC applications have been monitored during their shape memory process at the actual operational environment 25–27 . The performance evaluation and process monitoring techniques currently used for large SMPC components are given in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Distributed sensing based real‐time process monitoring of shape memory polymer components

Herath

Emmanuel

Jeewantha

et al. 2022

J of Applied Polymer Sci

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Shape memory polymer (SMP) materials have the capacity to undergo large deformations imposed by mechanical loading, hold a temporary shape, and then recover their original shape upon exposure to a particular external stimulus. The fiber reinforced shape memory polymer composites (SMPCs) with enhanced structural performances give a boost to breakthrough technologies for large-scale engineering applications. This article presents a novel technique for distributed optical fiber sensor (DOFS) embedded SMPCs intended for realtime process monitoring of large-scale engineering applications such as deployable space structures. Herein a carbon fiber reinforced SMPC was tested under a three-point flexural shape memory process and the DOFS data were acquired through optical backscatter reflectometry. Experiments were conducted in a temperature controlled thermal chamber coupled with a 10 kN electromechanical testing system. DOFSs offered unique advantages for spatially distributed dynamic temperature and strain measurements during the shape memory process. Compared to the standard test method dynamic mechanical analysis, larger samples can be tested effectively by using a single DOFS with large strain levels and shape complexity. The proposed technique demonstrated the ability of embedded DOFSs for in-situ shape memory characterization such as shape fixity ratio, shape recovery ratio and recovery rate. This technique will eliminate the challenges hindering the process monitoring and performance evaluation of large SMPC components operating in their real working environments.

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“…With the advantages of significant shape variable, easy forming, shape recovery temperature adjustment, and the inherent characteristic of shape memory, SMP is one of the most commonly studied intelligent materials (Hou et al, 2019; Lu et al, 2021; McCracken et al, 2020; Xia et al, 2021; Zhang et al, 2020). As a research area on emerging applications, the SMP research focuses primarily on intelligent flexible electronic devices (Cui et al, 2020; Gao et al, 2019), biomedical devices (Cheng et al, 2020; Le et al, 2018; Leitch and Worth, 2018; Li et al, 2020; Lin et al, 2019; Oh et al, 2020; Wang et al, 2018; Zhao et al, 2017), aerospace engineering (Dao et al, 2018; Lan et al, 2020; Liu et al, 2020; Margoy et al, 2021), and soft robotics (Ilami et al, 2021; Sachyani Keneth et al, 2021; Scalet, 2020; Schönfeld et al, 2021). Recently, a lot of literature has reported the application research (Karger-Kocsis and Kéki, 2018; Liu et al, 2018; Patel and Purohit, 2018).…”

Section: Introductionmentioning

confidence: 99%

Design of variable stiffness fixture for computerized embroidery machine based on shape memory polymer

Yang

Tian

Chen

et al. 2022

Journal of Intelligent Material Systems and Structures

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It is a challenge to handle the metal fixture used for cloth clamping in a computerized embroidery machine because of its fixed stiffness. Herein, a prototype that acts as a fixture to provide variable stiffness property is explored by discussing the potential of a thermal-sensitive epoxy resin-based shape memory polymer (SMP). The general model of fixture design is obtained after analyzing the working condition of the metal fixture. The structure of the SMP fixture is designed by discussing the material properties and working requirements of SMP, and a theoretical model is established to deduce the relationship between thickness and stiffness of the fixture. Six SMP fixtures that memorized clamping and opening state were manufactured with different proportions of raw materials. The results show that the designed fixtures have a lighter weight but higher clamping force than the metal fixture at room temperature (RT). It is the first work that demonstrates the potential of the SMP fixture to replace the metal fixture in the computerized embroidery machine and provides inspiration for product design with variable stiffness characteristic in engineering.

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Design, material properties and performances of a smart hinge based on shape memory polymer composites

Cited by 40 publications

References 30 publications

Design and optimization of self-deployable damage tolerant composite structures: A review

Design and optimization of self-deployable damage tolerant composite structures: A review

Distributed sensing based real‐time process monitoring of shape memory polymer components

Design of variable stiffness fixture for computerized embroidery machine based on shape memory polymer

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