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Mrs Hongfei Zheng

TOPIC: Study on cryogenic carbon fiber reinforced composite pressure vessel

Authors: Hongfei Zheng, Jianbao Zhang, Chengyuan Shang, Wenbin Li, Junfeng Wang, Hongjie Sun from the China Aerospace Research Institute of Materials & Processing Technology

Presented by Mrs Hongfei Zheng, engineer with the China Aerospace Research Institute of Materials & Processing Technology

Abstract

To meet the design goals for light weight of the next generation launch vehicles, carbon fiber reinforced polymeric based composites are being explored for cryogenic pressure vessel applications. One potential application is cryogenic fuel storage tank. To realize the potential weight savings from the use of polymeric composites, it is important to know the performance of the candidate material at cryogenic temperatures to ensure safety and reliability.

A T800 carbon fiber reinforced epoxy based composite (CFRC) pressure vessel for cryogenic fuel storage tank was fabricated by prepreg tape winding. A washout mandrel which was wrapped with EPDM rubber was used. Mechanical properties of resin cast, NOL ring and pressure vessel were measured at ambient and cryogenic temperatures respectively. The relationship between temperature and mechanical properties were discussed. The results indicated that cryogenic mechanical properties of NOL ring was better than at ambient. The burst pressure of pressure vessel can satisfy the design demands at ambient and cryogenic temperatures respectively.

Keywords: CFRC, pressure vessel, cryognic

Presenter’s resume

Mrs Hongfei Zheng is an engineer from China Aerospace Research Institute of Materials & Processing Technology. Her major is filament winding, including wet winding and tape winding. She studied at CSIRO from 2011 to 2012 as a visiting scholar supported by Chinese government.