**3. Conclusions**

The kinetics of corrosion behavior, fracture behavior and crack growth depends on the material-environment system. It is important to state that function, material, shape and process do interact. The specification of process limits the materials you can use and the shapes they can take. In other words, the process of employing fuel ethanol in the fuel industry and its associated corrosion and stress corrosion failures has invariably placed a limit on the materials that can be used as pipes, storage tanks and the required automotive parts.

The structural integrity assessments carried out in fuel ethanol is of optimal benefit to designers in the fuel, automotive, aviation, and chemical industries. Material compatibility with fuel ethanol, based on corrosion rates, stress intensity factor, fracture toughness and crack propagation resistance, amongst others have been reviewed. A designer must give considerable attention to these parameters in order to ensure reliable performance of materials.

Requirements for design, materials and inspection are then established in a conventional manner relative to the estimates of progressive crack extension behavior presented in literature.
