Hello,
I have some problems regarding cohesive zone elements in Optistruct (2019.1). While the Damage Model Method with interface elements as CIFHEX is working as expected, other methods do not seem to work.
How can you influence the orientation, element normal, of elements in Hyperworks? I need to specify the top and bottom surface, how can I achieve this?
Is node sharing required for CIFHEX elements or is it possible to define contact conditions?
Traction-Opening Curves Method based cohesive elements create an error message "Internal programming error in file "cohe_trac_disp.F" at location # 230". Is the implementation of these elements completed or still in the works?
Cohesive contacts create an error message "Syntax error(s) found in bulk data 'contact' card" while using the same parameters as a working Freeze or Sliding contact except with the mcohed cohesive data from the Damage Model Method. What might cause this error?
From the User guide Optistruct 2020 for contact based cohesive zone: "Currently only SMALL sliding, frictionless, N2S/S2S contact is supported for cohesive modelling." Does this imply that for cohesive contacts ONLY the seperation - normal forces create a degeneration and that shear is not regarded in this contact?
Regards.
