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FFEPlus vs Direct sparse

Question asked by Devi Prasad Samal on Jan 7, 2014
Latest reply on Jan 8, 2014 by Jared Conway

Hello guys i am doing a analysis with same setting but with different solver. but problem is i m getting high stress in direct sparse while FFEplus gives lower stress.


In direct sparse i am getting stress approx 1200MPa


while in FFEPlus it gives stress near to 800MPa.


Just curious which ine to consider in case of nonlinear no-penetration contact.


Why it is happening? See attached pic for reference stress plot result.