|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Composites for Energy Applications: Materials for Renewable Energy Applications 2022
||Non-destructive evaluation of defects in composite pressure vessels for hydrogen storage
||Sushrut Karmarkar, Vikas Tomar
|On-Site Speaker (Planned)
The need for renewable sources of fuel in the industrial, automotive and transport sectors in the past decade has led to rapid development in the use of hydrogen as a clean and efficient fuel alternative. In the automotive sector Fuel Cell Electric Vehicles (FCEVs) are increasingly using carbon, aramid, and glass fiber composite pressure vessels to store hydrogen fuel. Evaluation of the manufacturing and in-service defects and damages are a key challenge in the safe use of such pressure vessels. Mechanical impact damage at the surface and through thickness propagation in the composite structure is studied using terahertz – time domain spectroscopy (THz-TDS). The effect of mechanical impact on pressure vessel performance is evaluated using the THz-TDS data for the various damage mechanisms like delamination, void formation, and matrix cracking. Current non-destructive evaluation techniques are reviewed and compared against results from THz-TDS.