Elastic memory composites (EMC) for deployable industrial and commercial applications

Arzberger, Steven; Tupper, Michael; Lake, Mark S.; Barrett, Rory; Mallick, Kaushik; Hazelton, C. S.; Francis, William; Keller, Phillip N.; Campbell, Douglas; Feucht, S. W.; Codell, D. E.; Wintergerst, Joe; Adams, Larry; Mallioux, Joe; Denis, Rob; White, Karen L.; Long, Mark D.; Munshi, N. A.; Gall, Ken

doi:10.1117/12.600583

Cited by 36 publications

(39 citation statements)

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“…Arzberger et al (159) are more concerned with the application side of the Tembo® EMCs. An important advantage of Tembo® is that it is a thermoset resin whereas nearly all past SMP focussed on thermoplastics, however most structural-grade composite components for aerospace applications incorporate thermoset resins due to better mechanical performance and environmental durability.…”

Section: Flexible Matrix Compositesmentioning

confidence: 99%

Morphing skins

et al. 2008

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A review of morphing concepts with a strong focus on morphing skins is presented. Morphing technology on aircraft has found increased interest over the last decade because it is likely to enhance performance and efficiency over a wider range of flight conditions. For example, a radical change in configuration, i.e. wing geometry in flight may improve overall flight performance when cruise and dash are important considerations. Although many morphing aircraft concepts have been elaborated only a few deal with the problems relating to a smooth and continuous cover that simultaneously deforms and carries loads. It is found that anisotropic and variable stiffness structures offer potential for shape change and small area increase on aircraft wings. Concepts herein focus on those structures where primary loads are transmitted in the spanwise direction and a morphing function is achieved via chordwise flexibility. To meet desirable shape changes, stiffnesses can either be tailored or actively controlled to guarantee flexibility in the chordwise (or spanwise) direction with tailored actuation forces. Hence, corrugated structures, segmented structures, reinforced elastomers or flexible matrix composite tubes embedded in a low modulus membrane are all possible structures for morphing skins. For large wing area changes a particularly attractive solution could adopt deployable structures as no internal stresses are generated when their surface area is increased.

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Section: Flexible Matrix Compositesmentioning

confidence: 99%

Morphing skins

et al. 2008

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“…These materials were developed for deployable space applications (such as morphing aircraft wings) with very tight application needs and demands. The materials were used as hinges, deployable satellite panels, solar arrays, and flexible satellite booms with proposed uses as deployable antennas, deployable optics, and other deployable systems [65]. The TEMBO nanocomposite systems were compared with traditional microcomposite systems: use of nanofillers led to increased interfacial surface area (1,000-fold increase) and fewer material defects.…”

Section: Emergence Of Smpincsmentioning

confidence: 99%

Shape Memory Polymer–Inorganic Hybrid Nanocomposites

Reit

Lund

Voit

2014

Organic-Inorganic Hybrid Nanomaterials

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Shape memory polymers (SMPs) have been the focus of much research over the last few decades. From the novelty of temporarily fixing a threedimensional shape from a planar polymer sheet, to the uses that SMPs are seeing today as softening biomedical implants and self-deploying hinges, this class of smart materials has successfully been used to tackle a variety of biological, electrical, and mechanical problems. However, the properties of these networks are limited by the organic nature of the SMPs. To enhance their properties, researchers across the globe have looked into imparting the desirable properties of inorganic composite materials to these polymer networks. As the field of shape memory polymer composites began to grow, researchers quantified the unique enhancements that came at varying filler loading levels as a result of controlled material interface interactions. Specifically, the incorporation of nanofillers of various shapes and sizes leads to increased internal interfacial area relative to micro-and macrocomposites at identical loading fractions and imparts interesting mechanical, optical, electrical, thermal, and magnetic properties to these emerging nanocomposites. This new class of material, referred to in this review as shape memory polymer-inorganic nanocomposites (SMPINCs), allows a host of new interactions between the smart polymer and its surrounding environment as a result of the ability to control the internal environment of the polymer network and nanofiller. In this work, the reader is introduced to both the methods of preparing these composites and the effects the fillers have on the biological, electromagnetic, and mechanical properties of the resulting composite.

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“…The SMPC has many favorable qualities for auto-deploying space structures and has risen as an amazing phenomenon in the deployable space structure industry (Gall et al, 2000; Gordon, 1993; Kusy and Whitley, 1994; Leng et al, 2011). Up to date, SMPC materials have been fabricated into a variety of deployable structures, such as hinges (William et al, 2003), tubular boom (Arzberger et al, 2005), lattice (Liu et al, 2009), truss booms (Campbell et al, 2005), and solar array (Jorgensen et al, 2005). The SMPC not only has the strength of traditional reinforced fiber composites but also has shape recoverability, which can make SMPC structures that are folded in a high strain without damage to the reinforced fiber.…”

Section: Introductionmentioning

confidence: 99%

Design, fabrication, and bending test of shape memory polymer composite hinges for space deployable structures

Dao

Goo

et al. 2017

Journal of Intelligent Material Systems and Structures

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Shape memory polymers are smart materials characterized by a recoverability memory effect and a large strain, but their mechanical properties such as low stiffness need to be improved for mechanical applications with large recovering force. Researchers have reported that the characteristics of shape memory polymers can be significantly improved when the shape memory polymers are used with fiber–reinforced composite material. In this study, a carbon fiber fabric-reinforced shape memory polymer composite hinge was designed, fabricated, and characterized for space deployable structure applications. The main idea is that the carbon–epoxy composite itself and the shape memory polymer are combined, which means both epoxy resin and shape memory polymer resin are used together and the epoxy resin remains in a B-stage after curing. As such, the stiffness and shape recovery ratio are increased. The shape memory polymer composite hinge specimens with four plies of carbon fiber fabric and a shape memory polymer were prepared for the experiment. The glass transition temperature, which was 70.9°C, was determined using dynamic mechanical analyzer. The effect of temperature on shape recovery capability was investigated. We investigated the reasons of damage evolution to shape memory polymer composite tapes occurring in the folding and deploying process. To do that, damage to the hinge was observed with a USB digital microscope and a scanning electron microscopy and then explained with ABAQUS analysis. The results confirm that the shape memory polymer composite hinge is a good candidate for an antenna in spacecraft in space.

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Elastic memory composites (EMC) for deployable industrial and commercial applications

Cited by 36 publications

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Morphing skins

Morphing skins

Shape Memory Polymer–Inorganic Hybrid Nanocomposites

Design, fabrication, and bending test of shape memory polymer composite hinges for space deployable structures

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