by Deidre Ortiz
Arnold Engineering Development Center Public Affairs
12/8/2014 - ARNOLD AIR FORCE BASE, Tenn. -- An
Air Force and Navy Technical Interchange Meeting on ground testing of
materials for high-speed aerospace applications was held here last month
to discuss needs across the community in terms of current tools and
Representatives from AEDC, Air Force Research Laboratory, Naval Surface
Warfare Center, Defense Advanced Research Projects Agency, National
Aeronautics and Space Administration and several universities gathered
Nov. 19-20, 2014, to exchange information.
According to Glenn Liston, chief of the AFRL High Speed Experimentation
Branch at AEDC, the goal of the meeting was to better characterize
what's currently being used by the materials community to evaluate
oxidation and ablation behavior for high-speed applications.
"This includes understanding their merit as screening tools to judge
materials performance in actual aerospace flight conditions," Liston
said. "It also includes anchoring the various tools and methodologies
against accepted reference non-flight test techniques."
Topics of discussion included development of new testing paradigms for
traditionally higher-cost techniques that enable screening in simulated
relevant environments at costs that are affordable for the basic
research community and implementing new methods to accurately correlate
the disparate results derived from the various test techniques commonly
used by the materials community. A dedicated lab-scale arc jet facility
with appropriate diagnostics, flexible accessibility and cost
effectiveness was one example.
The group plans to host future workshops, technical interchanges and
projects, possibly in conjunction with the National Space & Missile
Materials Symposium or other national forums.