How to obtain interlaminar shear stress value in ANSYS?

[ggburne]

Hi, I'm currently modeling a 3 layers sandwich panel (2400 x 1500 mm). My task is to get the interlaminar shear stress value at the top surface and bottom surface of the core.

I'm using SHELL181 element and I assign top layer thickness to be 11 mm, core thickness to be 68 mm and bottom layer thickness to be 12 mm with integration points = 5 respectively. The top and bottom layers share same material properties except for the core which has different material properties.

I have performed nonlinear analysis onto the model but I do not know how to obtain the interlaminar shear stress. The commands that I have used are


ETABLE,ILSYZ,SMISC,1 ! SXZ INTERLAMINAR SHEAR STRESS
ETABLE,ILSXZ,SMISC,1 ! SXZ INTERLAMINAR SHEAR STRESS
ETABLE,ILMX,SMISC,1 ! INTERLAMINAR SHEAR STRESS VECTOR SUM

but the value seems absurd. I think the number after SMISC was wrongly put because I don't think it is 1. I do not know what is the correct number to obtain the interlaminar shear stress at the top and bottom of the core.

ANSYS help for SHELL181 stated

Bottom of Layer i Top of Layer NL
ILSXZ SMISC 8 * (i - 1) + 51 8 * (NL - 1) + 52
ILSYZ SMISC 8 * (i - 1) + 53 8 * (NL - 1) + 54
ILSUM SMISC 8 * (i - 1) + 55 8 * (NL - 1) + 56
ILANG SMISC 8 * (i - 1) + 57 8 * (NL - 1) + 58

However I do not know what is " i " and what is " NL ". Can someone help me with this?

 

[cloa]

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