Andreas Koutras
Ansys Employee

Hello, please check for LSPP warning messages at the the bottom right side of the GUI. The "input deck" is the LS-DYNA input file. The element local coordinate system can be modified as shown in the my first picture above. For example, try with the Vector or Orient options. If the material coordinate system in the shell through-thickness layers is correct (and independent from the element local system), the element local coordinate system won't affect the result. However, if you need to output shell stresses or shell resultants in the element local coordinate system, it will help to have well oriented element axes. Also see the definition of AOPT under the section of MAT_002 in the LS-DYNA manual vol II.