Structure and Element Behavior .To do a proper FE analysis,the analyst must understand how the structure is likely to behave and how elements are able to behave. E.g.If the analyst knows the stress varies linearly,Q4 elements will work,but if they vary quadratically,Q8 elements must be used.•To do a proper FE analysis, the analyst must understand how the structure is likely to behave and how elements are able to behave. • E.g. If the analyst knows the stress varies linearly, Q4 elements will work, but if they vary quadratically, Q8 elements must be used. Structure and Element Behavior