source:Source: https://www.researchgate.net/profile/Mohamed_Mourad_Lafifi/post/How_to_remove_warpage_angle_and_violation_of_heuristic_criterion_warning_in_LS-Dyna/attachment/5d0c0713cfe4a7968dacddf1/AS:771994878496770@1561069330997/download/Meshing_Tutorial_Ans.sys.pdf
