2016
DOI: 10.1002/app.43660
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Healing of polymeric artificial muscle reinforced ionomer composite by resistive heating

Abstract: In this study, structural-scale crack healing of artificial muscle reinforced ionomer composite was investigated following the close-then-heal (CTH) healing strategy. Structural-scale crack of 3 mm deep and 1 mm wide in notched beam specimens was first closed by actuation of the embedded polymeric artificial muscles made of fishing lines, followed by intrinsic healing of the ionomer matrix. The healing process was triggered by resistive heating of embedded carbon fibers by DC power. It is found that, with 0.7%… Show more

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Cited by 16 publications
(9 citation statements)
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“…A stimulus providing system can be added to the soft robotic device. For example, a heating system can be integrated on the material level by incorporating conductive or magnetic fillers in the self-healing matrix for ohmic or inductive heating (77), by incorporating conductive fibres (78), or on the actuator level by adding flexible heaters, similar to what is done in (79,80) for temperature controlled actuation.…”
Section: Requirements Of Sh Polymers For Soft Roboticsmentioning
confidence: 99%
“…A stimulus providing system can be added to the soft robotic device. For example, a heating system can be integrated on the material level by incorporating conductive or magnetic fillers in the self-healing matrix for ohmic or inductive heating (77), by incorporating conductive fibres (78), or on the actuator level by adding flexible heaters, similar to what is done in (79,80) for temperature controlled actuation.…”
Section: Requirements Of Sh Polymers For Soft Roboticsmentioning
confidence: 99%
“…Li and Shojaei (2012) developed a novel self-healing scheme that utilizes SMP fibers to stitch the crack faces. In this process, the crack surfaces are forced in contact through constrained shape recovery of tensionprogrammed SMP fibers which are embedded in the body (Zhang et al, 2016a;Zhang and Li, 2016;Zhang et al, 2016b). For example, an SMP fiber-reinforced grid skeleton, as shown in Figure 6, could act like stitch a cut in the human skin by suture.…”
Section: Thermomechanical Constitutive Modeling Of Semicrystalline Smpsmentioning
confidence: 99%
“… 32 , 33 Recent studies have been published where ionomers are used as self-sensing and self-healing agents for fabrication of self-healing composites. 10 , 17 , 20 , 27 , 34 , 35 …”
Section: Introductionmentioning
confidence: 99%
“…Scientists strongly desire to improve the lifetimes of polymeric materials through ability of pre-defined systems to heal upon introduction of an external stimulus, that is, self-heal. For example, among other properties, recovery after crack or impact damage is of particular interest in fields such as aerospace, automotive, biotechnological, and industrial engineering. Several research groups have explored the ability to recover mechanical properties after damage healing of both microscopic and macroscopic crack closures within a multitude of materials. These damage recovery processes are known to undergo healing processes through a close-then-heal (CTH) mechanism. After a damage event in polymers, the damage healing mechanism occurs through constrained shape recovery to close cracks, followed by healing on a molecular scale. In recent years, ionic clusters as healing agents have been found to introduce this CTH capability through water-, solvent-, temperature-, and/or stress-induced shape recovery. …”
Section: Introductionmentioning
confidence: 99%