I had tried to give an infinite element on the periphery of my model. I am facing the below-stated error.And attached two screenshot also.

Error "Infinite elements must share a complete face with one and only one other non-infinite element. The elements in element set ErrElemInfiniteAdjacency are not properly connected".

Kindly suggest to me some suitable solutions in this regard.

Another thing is it possible to do a sensitivity study in Abaqus/explicit? If yes then how? (Any available references)