Abstract
Artificial muscle is an emerging material in the field of smart materials with application in aerospace, robotic, and biomedical industries. Recently, innovative actuation devices based on artificial muscles with performances surpassing those of natural muscles in many aspects have been developed. However, most of the artificial muscles are facing big challenges including short life cycle and loss of stored energy due to dissipative mechanisms mainly rooted in hysteresis cycle and low work efficiency. Driven by a motivation in developing new category of artificial muscles with almost zero structural loss, artificial muscles from low cost fishing lines or sewing threads have been proposed to provide highest efficiency of a hysteresis-free actuation. Since then, our group has developed different models from phenomenological model to multi-scale models to simulate the actuation behaviors of the fishing-line-based artificial muscles. Due to the advantage in almost zero structural loss, artificial muscles have a great potential in the applications of self-healing composite systems. In this article, we demonstrate the applications of low-cost fishing-line-based artificial muscles in 1-D and 2-D configurations, with the aim at macro-scale damage healing for polymer composites.
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