Development of High Specific Power Solar Arrays with Shape Memory Polymer Hinge Lines

Rakow, A; Hedin, Kevin; Anthony, Brian W.

doi:10.2514/6.2018-2206

Cited by 6 publications

(9 citation statements)

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“…At present, there are still many researchers focus on developing SMPC hinges and booms, most of which are based on the EMC hinge and boom developed by CTD, but have been refined in material preparation, structural optimization and testing method to meet different engineering requirements [50,158,162]. Some new applications, such as the wrinkled/ slack control component, the release devices, the solar arrays, and the deployable trusses with new configurations, have been developed [28,163,164]. They may not have attracted much attention at the moment, but have promising prospects and can provide inspirations for new application development.…”

Section: Potential Applications Of Smp/smpc In Aerospace Fieldmentioning

confidence: 99%

Progress of shape memory polymers and their composites in aerospace applications

Liu

Leng

2019

Smart Mater. Struct.

123

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Shape memory polymers and their composites are kind of smart materials, which can transfer from the temporarily fixed configuration to the original configuration under external stimuli. Their inherent advantages are low density, low cost, large recoverable deformation ability and controllable stimulus method, which make them an alternative for aerospace applications (deployable structures, release devices, wrinkled/slack control component, etc). Most of these applications are in development stage, some have completed the ground functional verification experiments, a rare part has been carried out the spaceflight experiments. This review focuses on their materials and structures in aerospace field, briefly introduces the development history and general mechanism of shape memory polymers and their composites, replenishes the space radiation resistance abilities of these materials under the ground-simulated space radiation experiments, tracks those applications who have already completed the spaceflight experiments, then exhibits some novel applications which have great potential and could give us inspirations for new aerospace application development, finally the prospects for materials and structures are discussed in the future outlook.

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Section: Potential Applications Of Smp/smpc In Aerospace Fieldmentioning

confidence: 99%

Progress of shape memory polymers and their composites in aerospace applications

Liu

Leng

2019

Smart Mater. Struct.

123

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“…In recent years, Chen [107], CTD [108], and Liu [109] have developed new space-deployable structures based on SMPCs.…”

Section: (2) Deployable Structures Of Smpcsmentioning

confidence: 99%

“…In order to meet the high power and large area requirements of the solar array for small spacecraft, such as the micro-/nano-satellites for the future, as shown in Fig. 10, Alexi Rakow et al of CTD designed a composite lightweight array utilizing the shape-memory polymer (CLASP) based on elastic memory composite (EMC) linear hinges [108]. The EMC hinges in the CLASP structure were folded in to a "Z" shape to achieve the smooth, slow, and controllable deployment of the solar array.…”

Section: (2) Deployable Structures Of Smpcsmentioning

confidence: 99%

Mechanical Models, Structures, and Applications of Shape-Memory Polymers and Their Composites

Xin

Liu

et al. 2019

Acta Mech. Solida Sin.

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Shape-memory polymers (SMPs) and their composite materials are stimuliresponsive materials that have the unique characteristics of lightweight, large deformation, variable stiffness, and biocompatibility. This paper reviews the research status of the mechanical models for SMPs, shape-memory nanocomposites and shape-memory polymer composites (SMPCs); it also introduces some spatially deployable structures, such as hinges, beams, and antennae based on SMPCs. In addition, the deformation types of 4D printing structures and the potential applications of this technology in robots and medical devices are also summarized.The mechanism of shape-memory cycles and the mechanical behavior of SMPs can be described by establishing thermomechanical models, which lay the theoretical foundations for the rational design of SMP structures. This section will focus on the constitutive models for SMPs, the micromechanical models of SMPNs, and the buckling behavior of SMPCs.

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“…[15]. Also, advances in solar sails and solar panels pose a challenge to design lighter deployable structures with lower stowed volume [16]. The need for efficient usage of volume makes it difficult to employ traditional deployable structures [15].…”

Section: List Of Tablesmentioning

confidence: 99%

Shape Recovery Behavior of Carbon Nanopaper Shape Memory Polymer Composite

Ozdemir

Kwok

2019

AIAA Scitech 2019 Forum

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This thesis presents analytical, experimental and modeling studies of the shape recovery behavior of electrically activated Carbon Nanopaper (CNP) Shape Memory Polymer (SMP) composite. The composite structure studied consists of a CNP layer sandwiched by two SMP layers where the CNP layer acts as a flexible electrical heater when a voltage difference is applied. The behavior of CNP/SMP composite presents a coupled electrical-thermal-structural problem. The governing equations for the multiphysics behavior are derived. Derived parameters as a result of multiphysics analysis and effects of these parameters on the shape recovery behavior are investigated. The mechanical properties of the carbon nanopaper and viscoelastic properties of the shape memory polymer are characterized. A nonlinear, fully coupled electrical-thermal-structural finite element model is developed, and shape recovery experiments are carried out to validate multiphysics analysis and finite element model of the shape recovery of the CNP/SMP composite. Finite element model captures the general behavior of shape recovery, but overpredicts shape fixity and shape recovery rate.

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Development of High Specific Power Solar Arrays with Shape Memory Polymer Hinge Lines

Cited by 6 publications

References 0 publications

Progress of shape memory polymers and their composites in aerospace applications

Progress of shape memory polymers and their composites in aerospace applications

Mechanical Models, Structures, and Applications of Shape-Memory Polymers and Their Composites

Shape Recovery Behavior of Carbon Nanopaper Shape Memory Polymer Composite

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