Abstract

The meso-scale simulation, where the carbon fiber bundle structure with resin is explicitly handled, seems promising for rational setting of burst criteria of Type IV hydrogen vessel. Material properties including fracture models both for carbon fiber and resin can be directly introduced. The stress and strain concentrations caused by fiber bundles crossing are adequately analyzed to predict burst pressure in terms of carbon fiber strain. The advantage of the proposed methodology is demonstrated by the numerical example and future possibility is discussed.

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