×
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

Drucker

Drucker

(OP)
dear all,

i am working with abaqus standard and am trying to apply the Drucker stability check for hyperelastic materials (specifically ogden), as done in CAE, in my own routine. Has anyone any experince on how to do so? As a first step assuming uniaxial loading only, i did employ the stiffness matrix given in the theory manual, assumed 1-direction to be loading direction, replaced lamda 2 accordingly and veried lamda 1 and eps1 respectively, to check for positve definiteness. Somewhat goes wrong anyhow since the stability range given in CAE does not correspond to my output.

I would appreaciate very much anyones' help! Thank you so much in advance,
kind regards,
Chris

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