Product: Abaqus/Explicit
Benefits: You can use the new mass adjust option to specify the mass of an element set directly or to specify a minimum element stable time increment for an element set which, unlike mass scaling, is accomplished with no increase in the mass of the set.
Description: The ability to accurately specify the mass of a meshed part in an analysis model is often important. The mass adjust option enables you to specify the mass of an element set directly without the need to know the original mass of the element set. In addition, you can impose a minimum element stable time increment on an element set. Unlike mass scaling, which adds mass to the critical elements (elements with the smallest stable time increments) in the set, this feature redistributes mass from the noncritical elements to the critical elements and has the advantage that the mass of the element set is preserved.
References: