DEFENSE

Systems Digest

7 DECEMBER 2021

DSIAC collects and publishes articles related to our technical focus areas on the web to share with the DoD community.

FEATURED ARTICLE

What research or testing has been done to launch long-rod projectiles at near-hypersonic or greater speeds while causing the projectile to impact a target lengthwise?

The Defense Systems Information Analysis Center (DSIAC) is seeking information on technologies, methodologies, and processes that can be used to launch long-rod projectiles at 3 kft/s or greater, resulting in the projectile impacting lengthwise on a target surface perpendicular to the projectile’s line of flight. Of primary interest are methodologies, test procedures and results, and…

U.S. Military Personnel operating a drone

What nonlethal and intermediate force capabilities can be integrated into unmanned aerial vehicles and demonstrated by the first CY quarter of 2025?

The Defense Systems Information Analysis Center (DSIAC) is searching for nonlethal/intermediate force capabilities that can be mounted onto unmanned aerial vehicles and ready for a live, integrated demonstration by the first quarter of calendar year (CY) 2025. These capabilities should weigh up to 150 lb and measure approximately 1 ft × 2 ft. If you…

electronic components on a circuit board

Which organometallic compounds are most often used for depositing tungsten, cobalt, or ruthenium in semiconductor transistors?

The Defense Systems Information Analysis Center (DSIAC) is searching for organometallic compounds most often used in depositing tungsten, cobalt, or ruthenium to fabricate low-resistance source/drain contacts in transistor research. Of particular interest are deposition approaches for fin field-effect transistors or gate-all-around transistor designs. If you are willing to assist in this effort or know of…

AFRL repairs next generation composite materials with light

Manufacturing, Modeling, and Characterizing Thermoplastic Composites for Military Vehicle Applications

This webinar focuses on developing methods for manufacturing structural thermoplastic composite materials, characterizing the mechanical properties of such composites, and modeling the static and dynamic performance in relevant military vehicle modeling and simulation (M&S) environments. A thermoplastic polyethylene terephthalate/fiberglass composite was selected for this study due to the high specific strength of e-glass fibers, the…

Robert J. Hart

Evan Patton

Supporting high-energy lasers for combat

Experimental Protective Coatings for CDEW Applications

Researchers have taken many avenues to mitigate how high-energy laser (HEL) weapons affect platform survivability because of size, weight, performance, and cost factors. Protective coatings offer a cheap, lightweight option for counter directed energy weapons (CDEWs) applications. Diffusely reflective coatings can reflect a significant portion of incoming laser energy before it reaches the substrate. The…

Nickolaus K. Weise

U.S. Army Combat Capabilities Development Command (DEVCOM) Analysis Center (DAC) RelTools Dashboard

Reliability is the probability that an item will perform its intended function for a specified period under stated conditions. It has a significant impact on operating and sustainment costs within the U.S. Department of Defense (DoD), which typically represent 70% of the program’s total life-cycle costs [1].

A Surrogate Model to Quantify Uncertainty in Thermal Protection Systems for Hypersonic Weapons

Modeling and simulation are key for the iterative development of thermal protection systems (TPS’s) for hypersonic weapons. In this work, the temperature-dependent flexural strength (FS) of α-SiC ceramic is predicted given Young’s modulus, Poisson’s ratio, and temperature. An artificial neural network (ANN) surrogate model is created to retain property-performance prediction while increasing computation speed.