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Spring 2020: Volume 7 Number 2
Published: May 27, 2020
Our feature article in this journal issue, “A Computational Approach to Understanding Advanced Thermal Barrier Coatings’ Performance,” discusses how many advanced engine system designs result in significant increases in operating temperatures, which, in turn, require new thermal protection coatings (TBCs). The relationship between material microstructure and performance of ceramic coatings is identified through a computational approach. Although the work involved uses yttria-stabilized zirconia (YSZ) as a model material, the approach can be applied to many different ceramic materials.
In This Issue
Composite Overwrapped Pipe Burst Test
Summary With the emphasis on lightweighting, composites are being turned to help reduce weight while still maintaining strength and stiffness. However, composites tend to be linear elastic to failure, so there is often no…
The Importance of Early Prototyping in Defense Research, Engineering, Acquisition, and Sustainment
SUMMARY The U.S. Department of Defense (DoD) operates across the entire life cycle of capability development, including exploratory science, research and development (R&D), production and deployment, operations and sustainment, and disposal. The processes used by…
A Computational Approach to Understanding Advanced Thermal Barrier Coatings’ Performance
SUMMARY Many advanced engine system designs result in significant increases in operating temperatures, which, in turn, require new thermal protection coatings (TBCs). In addition to providing a much higher level of thermal protection, TBCs must…
Additive Manufacturing High-Performance Polymers for Space and Aerospace
INTRODUCTION Additive manufacturing (AM) has come a long way. However, there are still a number of problems to solve for AM of polymer matrix composites (PMCs) [1], especially for future aerospace in U.S. Department of…
Can Compressive Sensing Solve Your Sensor and Measurement Problems?
Summary Compressive sensing (CS) is a relatively new field that has generated a great deal of excitement in the signal-processing community. Research has applied CS to many forms of measurement, including radio detection and ranging…
Inorganic Optical Components Using Additive Manufacturing
Introduction For almost two centuries, the optical community has been using the same method of producing refractive lenses and optically transparent windows. They start with an optical blank that is cut, ground, and then polished/lapped…