Potential Commercial Applications Construction Architecture Sailboats Underwater Facilities Hyperbaric Chambers Hazmat Shelters Field Hospitals Isolation Rooms Moveable Barriers Storage Dirigibles Keywords Inflatables Inflatable Structures Soft Structures Finite Element Analysis Habitat Strain Sensing Tension Sensing Flexible Electronics Flexible Sensors Wireless Sensors Tensile Structures Fabric Structures Expandable Structures Lightweight Structures Purpose Systems Designed For Space Missions Are Constrained By Many Factors Useable Volume Is One Of The Most Significant Factors Inflatable Or Expandable Structures Offer A Way To Obtain Three Times Or Greater Useable Volume For The Same Launch Mass And Cost These Structures Are Made Of Synthetic Fibers Like Kevlar And Vectran Woven Into Fabrics And Flexible Tubes And Are Launched In A Tightly Stowed Configuration And Then Inflated And Pressure Stiffened When Needed Two Examples Of Inflatable Systems For Space Exploration That Are Currently Undergoing Testing Are The Bigelow Expandable Activity Module Beam And The Hypersonic Inflatable Aerodynamic Decelerator Hiad After Delivery To The International Space Station Iss The Beam Was Inflated To Provide Temporary Storage The Module Has Performed Well And Initial Tests Indicate That It Can Fill The Role Of A More Traditional Metal Module To Meet The Payload Requirements For Sending Humans To Mars Nasa Needs An Aeroshell Decelerator That Is Much Larger Than Can Fit Into Current Rocket Configurations Hiad Solves This Problem By Being Stowed In A Tight Package And Then Inflating To Five Times Its Stowed Size Prior To Entry Into Mars Atmosphere Nasa Seeks To Work With A Partner To Advance Inflatable Structure Technology With The Goal Of More Accurately Predicting Structure Performance Through Improved Finite Element Models And Structural Sensing Integrated Directly Into The Flexible Materials That Make Up The Inflatable System In Pursuing These Types Of Inflatables Technology Advancements Nasa And A Partner Will Develop New And Improved Inflatable Designs For Habitat Modules For Space Missions The Same Technology Will Also Benefit Terrestrial Applications By Providing Improved Fabric Design Options These Applications Include But Are Not Limited To Quickly Deployable Durable Shelters Hyperbaric Chambers Deployable Shock Absorbers Storm Surge Protection Devices Pipeline Fluid Plugs And Fluid Stowage Containers Technology Engineers At The Johnson Space Center Jsc And The Langley Research Center Larc Are Currently Offering Co Development Opportunities Focusing On Three Important Technologies Necessary For Improving The Performance Of Inflatable Structures Technology Goals Include But Are Not Limited To Improving Structural Analysis Software Tools For Modeling Synthetic Fibers Fabrics And Other Flexible Materials Resulting In Better Performance Predictions Specifically Developing Non Linear Math Models Of Softgoods Based Structures That Can Take Probabilistic Based Non Linear Stress Strain Curves To Account For Variability In Materials Along With Probabilistic Geometries To Account For Variability In Manufacturing And Predict Stress Strain In Representative Structural Models Correlating These Models To Pressure Tests Utilizing Photogrammetry Strain Data That Is Collected During Tests Improving Monitoring Of Inflatable Structures Through A Range Of Integrated Flexible Electronics And Sensing Capacitive Strain Sensors Resistive Strain Sensors Fiber Optic Strain Sensors Foil Strain Gauges Acoustic Sensors Accelerometers And Others Developing Flexible Materials Including Sensors And Electronics With A Greater Temperature Range R Amp D Status Nasa Has Performed Extensive Development And Testing Of Inflatable Structures Working With Bigelow Aer
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