sheet metal material properties

Hi All,

I have a questions related to material selection for sheet metal.

We currently use A1008 CS TYPE B for all of our sheet metalcomponents.

However, I have one L-shaped part that is failing some seismictesting with the inside radius cracking.

I wanted to change to a higher grade material but not sure how toselect the right material or where find to good source of info.

Any info is appreciated.

B-SolidworksSheet Metal