Polymers that respond in a productive fashion to their environment are under active development as they offer significant advantages over traditional materials. For example, polymers with the ability to self-heal and recover a significant fraction of their initial properties after being subjected to a damage event are of significant interest. Here we study the effect of healing agent viscosity ...

Self-healing cementitious materials can extend the service life of structures, improve safety during repair activities and reduce costs with minimal human intervention. Recent advances in self-healing research have shown promise for capsule-based intrinsic healing systems. However, limited information is available regarding vascular-based mechanisms. The aim this work to compare different comme...

Self-diagnostics and prognostics in multi-agent processing systems is explored in the context of selfsoothing concepts in Neuropsychology. The use of emotional memory and autonomic nervous state recall can be used to provide contextual cognition for system-level diagnostic and prognostics in large-scale systems. The use of an Artificial Cognitive Neural Framework with intelligent information so...

Inspired by biological systems in which damage triggers an autonomic healing response, structural polymers and polymer matrix composites have been recently developed that possess the ability to self-heal. Self-healing is accomplished by incorporating a microencapsulated healing agent and a catalytic chemical trigger within a polymer matrix. When the material is damaged, the microcapsules ruptur...

u-Zone Network is a hybrid of wireless mesh and Mobile Ad-hoc Networks (MANETs). Such networks help to realize ubiquity through spontaneous networking. The network management for these hybrid networks is different from conventional and infrastructure based network management. Heterogeneity, mobility, dynamic topologies, physical security, and survivability make the challenge hard. We present a ...

Self-healing represents a new paradigm for active and responsive materials. As first demonstrated by White et al., and subsequently in additional publications, polymer composites can be engineered to chemically self-heal. However, the chemistry of previous systems possesses inherent shortcomings due to the potential side reactions with the polymer matrix and air. Here we present a new, chemical...

The role of the crystal morphology and dissolution kinetics of Grubbs’ catalyst on self-healing capability is examined. Self-healing polymers require complete coverage of the crack plane with polymerized healing agent for optimal recovery of mechanical integrity. Lack of catalyst leads to incomplete coverage, partial polymerization, and poor mechanical recovery. Catalyst availability is determi...