×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

How to obtain interlaminar shear stress value in ANSYS?

How to obtain interlaminar shear stress value in ANSYS?

How to obtain interlaminar shear stress value in ANSYS?

(OP)
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?  

RE: How to obtain interlaminar shear stress value in ANSYS?

Repost in ANSYS Forum

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources