2013-2014 Assessment of the Army Research Laboratory (2015) / Chapter Skim
Currently Skimming:
6 Mechanical Sciences
6 Mechanical Sciences
Pages 143-154
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 143... ...
ACCOMPLISHMENTS AND ADVANCEMENTS Mechanics The laboratory facilities are impressive, including the subsonic wind tunnel and facilities supporting work in propulsion and additive manufacturing; these facilities can enable ARL to establish leadership positions in mechanical sciences areas. The facilities would also be attractive to collaborators.
|
From page 144... ...
The research is employing appropriate equipment and numerical models. Computational Fluid Dynamics and Comprehensive Structural Dynamics Correlation with Fuselage and Wind Tunnel Walls The research reflects understanding of the physics and familiarity with other work in the field.
|
From page 145... ...
Dynamic Response of Topologically Interlocking Structures This project involves the use of additive manufacturing techniques to create interlocking elements that can be assembled to sustain impact loads greater than those sustained by traditional materials.
|
From page 146... ...
This research has successfully demonstrated the use of 3D printing machines to fabricate composite materials. Statistical Estimation of Sensitivity in Modeling Parameters The main accomplishment of this project is the development of a new probability-ratio-based method for estimating sensitivity of a system with an intractable response surface that requires computationally intensive Monte Carlo evaluation.
|
From page 147... ...
Interfacial Strain Energy Dissipation in Hybrid Nanocomposite Beams Under Axial Strain Fields Previous (1990s-2000s) work on characterization of elastomeric materials and associated device damping may provide some beneficial structure for the work.
|
From page 148... ...
tilt rotor test stand, both located at NASA Langley Research Center, need to be exploited further. These are world-class facilities that were developed by ARL in conjunction with industry.
|
From page 149... ...
The ARES rotor test stand and the WRATS tilt rotor test stand, both located at the NASA Langley Research Center, need to be exploited further. Propulsion The consideration of new applications associated with smaller machinery and longer operations, especially for diesel engines, is necessary.
|
From page 150... ...
Diesel Injector Computations Examination of JP-8 injection is very valuable. As noted above, there is a need to identify from a systems perspective which aspects of diesel engines need improvement and to then use the findings to define research projects.
|
From page 151... ...
The team studying virtual risk-informed agile maneuver sustainment will need to develop a roadmap for what will be needed to advance from concept to application. To develop this roadmap, the team will need to identify milestones, timelines, and goals.
|
From page 152... ...
will need to be developed to predict cumulative damage of structures that experience multiaxial loading. There is a need to develop new methods to characterize material failure mechanisms more effectively and efficiently under various loading conditions.
|
From page 153... ...
Complete full operational capability of primary research facilities provides a unique resource and advantage to capture research of the highest quality. Interfacial strain energy dissipation in hybrid nanocomposite beams under axial strain field is an exceptional area.
|
From page 154... ...
However, there is significant potential to do so, because the group is very talented. They could become leaders by identifying niche areas and technology solution ideas and by developing and validating the associated computational, experimental, and design tools required to answer specific key research questions.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.