I would call Velocity and ask about a warranty and switching to a different model rim, their customer service is some of the best in the business. Of all of their rims I really like the Atlas or NoBS as a loaded touring rim. I have a set on my cargo bike which has seen a lot of abuse including running wide tires over inflated to see how well they hold up since some of the older models of Velocity rims had issues splitting when running wider tires on the higher side of the pressure spectrum.

No matter which route you go I would experiment with lower pressures. Most people assume lower pressure equals more rolling resistance but it is certainly not always the case. Wider tires under high pressures put a lot of stress on rims.