I suspect that on a percentage basis, the incidence of field failures due to CAD bugs are vastly outnumbered by field failures for other reasons.
Also, perhaps by culture, we don't trust CAD enough to let it get us into that kind of trouble, because we know that modeling always involves approximations and assumptions. Truth be told, I rarely see CAD used to determine critical design margins, without at least a sanity check.
Also, perhaps by culture, we don't trust CAD enough to let it get us into that kind of trouble, because we know that modeling always involves approximations and assumptions. Truth be told, I rarely see CAD used to determine critical design margins, without at least a sanity check.