Hello everybody,
I am quite new in modeling damage and I ran into some problems. To introduce you in my simulation, please check the picture of the assembly below, it is simple pressing of the cone (steel + rigid constraint) in a cylinder (steel-deformable) lying on the rigid plate. Please check the damage model in the attached picture (it is not based on material data, I just fitted the *elastic and *plastic-kinematic hardening data, the damage model is pure estimation).
What I want to achieve? Now what I would like to achieve is to create a crack on a cylinder that would propagate in a direction that is parallel to the axis of cylinder. For this, I want to model some geometrical irregularity on a cylinder to force the crack propagate from a specific spot along the circumference.
What is my problem? My concern right now is that the element deletion happens on the elements that are on the interface between the cone and the cylinder because there the biggest strain occurs. After these elements are deleted, the underlying elements are not participating in a contact with cone which is a non-physical behavior. So how to make all the elements of a cylinder (or selected elements) be in contact with the cone? How to add these underlying elements? I saw some video on YT that shows drilling process and it seems there is such a possibility.
Thank you for any suggestion.
