FAA Projects for FY0607

1
FAA Projects for FY-06/07

• UCB AACE Cooperative Agreement
• Metals/composite material models and ballistic
  testing
• GWU Two Cooperative Agreements
• Support LSDYNA Aerospace Quality Control work
• Metals/fabric/composite material models
• LSDYNA Training

2
FAA Projects for FY-06/07

• OSU Aluminum and Titanium Static and
  High-Strain Rate Testing
• ASU Fabric modeling on Kevlar and Zylon
• NASA-GRC Collaborative effort in which FAA is
  supplying materials. We also are getting two
  used cameras from NASA in which we can lend to
  universities

3
06/07 TESTING PLANS

• OSU
• Static and high strain rate material tests
• ASU
• Medium strain rate material tests
• NASA-GRC
• Ballistic testing (cylindrical projectile)
• strain gage instrumentation
• Stress field calculations
• UCB (aluminum only)
• Ballistic testing (cylindrical projectile with
  diff. tips)
• Preliminary tests to size projectile
• Tests to determine tip shape results

4
So what is different from previous tests?

• Same lots of materials for all tests and
  facilities
• Ballistic limits in the 600-900 ft/sec range
• Strain gaging of targets
• New modeling methods are requiring new material
  tests

5
Initial Materials

• Ti-6Al-4V
• 0.080 in
• 0.140 in
• 0.25 in
• Al 2024-T3/T351
• 0.125 in (T3)
• 0.25 in (T351)
• 0.50 in (T351)

6
UCB Ballistic Test Thoughts

• Phase 1- Short Term
• Use existing test facility configuration to
  conduct preliminary tests to support future NASA
  and UCB testing
• Use existing 2024 aluminum material(NASA/UCB)
• Target Thickness TBD
• Test conditions will build on previous NASA tests
  and modeling
• Phase 2- Improve facility with new barrel,
  upgraded camera, etc.

7
UCB Ballistic Test Thoughts

• Phase 3- Ballistic testing with different tip
  profiles
• 0.125 thick
• 0250 thick

8
Material Models being developed for Aluminum and
Titanium

• GWU/NASA-
• Kelly Carney, Paul DuBois, Murat, Steve
• Data driven stress strain curves incorporated int
  LSDYNA material model 24
• GWU / Boeing
• Baseline Johnson-Cook comparisons
• UCB-
• Simplified material model (Tarek Zohdi/ David
  Powell)
• EMMI Model (George Johnson)

9
How do we share results?

• Possibly a NASA web site?
• Periodic phone calls / Web X?
• Joint Meetings?
• Possibly as part of LSDYNA reviews?