J0320204 FW工法によるCFRP積層構造のメゾスケール強度解析 / J0320204 Meso-scale Strength Analysis of Filament Wound CFRP Structure
- Resource Type
- Journal Article
- Authors
- Nobuhiro YOSHIKAWA; Shigetaka UEHARA; Shinichiro TAKEMOTO; 上原 茂高; 吉川 暢宏; 竹本 真一郎
- Source
- The Proceedings of Mechanical Engineering Congress, Japan. 2015, :0320204
- Subject
- Carbon Fiber Reinforced Plastics
Expeliment Integrated Finite Element Analysis
Filament Winding
Hydrogen High Pressure Vessel
Meso-scale Model
- Language
- Japanese
- ISSN
- 2424-2667
Strength limited design of carbon fiber reinforced plastic (CFRP) is very important for hydrogen pressure vessel to reduce the cost with reliability. Authors have approached to evaluate a test piece sized model representing CFRP in the vessel. The model is analyzed by a meso-scale finite element model, where mesoscopic structure of carbon fiber bundle and matrix resin is explicitly handled. The actual test pieces are examined by quasi-biaxial tensile test. As for macroscopic load-strain relationship, the finite element analyses yield good agreement with the experiments. We reveal strain concentration in the vicinity of fiber bundle crossover, which causes burst pressure reduction of the vessels.