This article is from the 2025 Technical Update. The NESC’s Thermal Control & Protection Technical Discipline Team (TDT) is a resource providing subject matter expertise in active and passive thermal control as well as ascent and entry thermal protection across the spectrum of agency needs. TDT members led or supported a variety of key activities […]
Category: NASA Engineering and Safety Center
Flammability Testing Configuration and Approach of Barrier MaterialAssemblies Designed for Space Flight Applications
The NASA Engineering and Safety Center (NESC) partnered with Materials and Processes and Flammability subject matter experts from the Johnson Space Center, White Sands Test Facility, and the Marshall Space Flight Center to design and develop a test for evaluating the effectiveness of material assemblies to serve as a barrier between a potential cabin ignition […]
TB 26-02 Effects of Large Grain Size in Composite Overwrapped Pressure Vessel
The NASA Engineering and Safety Center (NESC) performed an assessment to characterize the effects of abnormal grain growth (AGG) within a metallic liner of a composite overwrapped pressure vessel (COPV). This effort focused on evaluating the mechanical response of the liner material, including the strain amplification factor (SAF), using a series of custom-designed coupons that […]
TB 26-01 Evaluation of Adhesive and Solvent Alternatives for Polymeric Bonding Applications
The NASA Engineering and Safety Center (NESC) conducted a technical assessment to evaluate alternatives to dichloromethane, traditionally used for bonding transparent polymeric materials. This effort was initiated in response to potential regulatory restrictions under the EPA Toxic Substances Control Act (TSCA), which could impact critical bonding processes used in spaceflight hardware and experimental systems. Download […]
2025 NESC Technical Update
Annual Report of NESC Technical Activities On behalf of the NASA Engineering and Safety Center (NESC), I am pleased to provide you with the 2025 NESC Technical Update. This annual report summarizes the technical work, engineering advancements, and knowledge capture efforts we made in FY25. With support provided by members of our NASA community from […]
The Need to Bake Out Silicone Based Thermal Control Coatings
BackgroundThe NASA Engineering and Safety Center (NESC) has reviewed flight, ground test, and published data on ultraviolet-induced degradation of silicone based thermal control coatings. Analysis has shown, for at least one silicone coating, that bake-out plays an important role in ultraviolet (UV) degradation, indicating that UV interaction with paint volatiles, and not the structural material, […]