Textile Strain Measurement System

Current evaluations of stress in textile parachute structures rely heavily on analytical estimation without adequate data collection means to validate or improve simulations. Features of available data acquisition tools are too limited to facilitate “live” stress measurement of parachute textiles in operation. Advancements in microelectronics and electronics infused "E-textiles" can be employed in combination to create the critically needed data collection tools for use on parachutes in operation, with continued innovation required to expand capability to also include parachute deployment and inflation stages. The current concept for this proposal, hereinafter referred to as the Textile Strain Measurement System or TSMS, is anticipated to produce a data acquisition system that meets the Topic Z11.01: "... advanced sensors, sensor systems ... to perform inspections on large complex structures... for potential use on free-flying inspection platforms." The planned sensor system includes design of a directly measuring data recorder, with size and mass goals to remain non-influential to the parachute material's natural movement and dynamic characteristics. The latest advancements in microelectronics will be exploited to achieve the miniaturization goals. The proposed effort includes investigation and characterization of various strain sensitive materials suitable for stress measurement of multiple textile high and low elongation categories. The resulting TSMS innovation is a combined design of recorder with strain measurement materials specific to textile decelerator configurations that can be utilized in an efficient and non-invasive manner. More »