• RecurringMeetings
• 2016-11-09

Recurring Meeting of Cleveland Clinic - University of Utah

Date: November 9, 2016

Time: 2:00 PM EST

Means: Conference call

Attendees:

1. Ahmet Erdemir (Cleveland Clinic)
2. Jeff Weiss (University of Utah)
3. Steve Maas (University of Utah)
4. Ben Ellis (University of Utah)

Agenda:

1. Ongoing and planned activities at Cleveland Clinic.
2. Ongoing and planned activities at University of Utah.
3. Other.

Immediate Action Items:

• Cleveland Clinic (Ahmet)
  • Arrange meeting with Stanford University and University of Utah teams for cloud computing logistics.
• University of Utah (Jeff)
  • Contact Wendy for scheduling of meeting for cloud computing logistics.
• University of Utah (Steve)
  • Continue generalization of wrapping spring elements feature for nonlinearity and for model setup.
  • Implement prototype of a part feature for mesh assembly.

Notes:

1. Ongoing and planned activities at Cleveland Clinic.
   • Ahmet summarize the availability of Joy and Henry for a conference call on cloud computing implementation. Jeff will check with Wendy and inform Ahmet so that we can schedule the meeting.
   • Ahmet summarized work done by Ben Landis to assemble meshes and write an FEBio file as a template model. He reminded the University of Utah team about a potential implementation of a part feature. If available, this feature will allow describing nodes, elements, and all the sets of a given tissue by itself. It will prevent the requirement to define a global mesh and facilitate node and element numbering. Steve noted that this feature does not exist. Yet, he believes that it can be implemented easily. This will require FEBio pre-processing input file to define a global mesh from parts. Steve will have something in this regard next week.
2. Ongoing and planned activities at University of Utah.
   • Steve was hoping to add stabilization to solve the problem of wrapping springs with contact. So far, he got stuck without any resolution. He has been thinking about other ways to tackle the problem, e.g., if the nodal positions are not well defined, they can be placed anywhere - for example, evenly along the wire. He tried this and it works well. Unfortunately the contact math got complicated. Current implementation does not give the correct shape for the wire. Steve started checking literature.
   • Steve mentioned that Gerard gave a demo the previous day about shells on solids. The implementation is pretty much done. The capability may be available in future releases of FEBio soon.
   • Steve confirmed the distribution of the pre-strain plugin on the FEBio website.
3. Other.
   • None noted.