From parachutes to orbiting systems, webbing structures play a crucial role on the safety of civil and aerospace systems. The mechanical strength of a webbing can be severely undermined by the ultra-violet (UV) component of sunlight. In this work, we introduce a photochromic webbing structure that exhibits color variation upon UV irradiation. The photochromic webbing demonstrates sensitivity under a wide range of realistic field settings, including extended UV exposures and cyclic UV irradiations. Our analysis could help set the stage for the integration of photochromic webbings in aerospace systems.
Maintaining the integrity of load-bearing webbing structures is crucial to ensure the safety of aerospace and aeronautical systems. Traditional sensing devices are not suited for strain sensing of webbing structures, due to their complexity and lack of flexibility. Here, we introduce a mechanochromic nylon webbing structure that exhibits fluorescence emission shifts in response to applied strains. The strain sensitivity of the webbing is quantified through tensile tests for a wide range of applied strains. The presented mechanochromic webbing could serve as load-bearing structures with non-destructive strain and damage sensing capabilities.
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