NASA Langley Research Center – Page 2

Single Wall Carbon Nanotube-Based Structural Health Monitoring Sensing Materials

Watkins A.N., Ingram J.L., Jordan J.D., Wincheski R.A., Smits J.M., Williams P.A., NASA Langley Research Center, US

Single-wall carbon nanotube (SWCNT)-based materials represent the future aerospace vehicle construction material of choice based primarily on predicted strength-to-weight advantages and inherent multifunctionality. As such, it is prudent to pursue the development of SWCNT-based sensing [...]

System Model for MEMS based Laser Ultrasonic Receiver

Wilson W.C., NASA Langley Research Center, US

This paper investigates the system modeling of a MOEMS based Laser Ultrasonic receiver system. See Figure 1 for a block diagram of the system. The LUT receiver is comprised of a laser, and an optical [...]

Molecular Dynamics Simulation on Characteristics of Nano-sized Nickel Aluminide Dispersoids in Aluminum Matrix

Namkung M., Paik S., Wincheski R.A., NASA Langley Research Center, US

Molecular dynamics simulations were performed on the morphology of the interfaces between intermetallic nano-sized dispersoids of Ni3Al and NiAl, and a pure aluminum matrix. The lattice constants of dispersoids were initially set to be identical [...]

Thermodynamic Behaviors of Nano-Sized Au Clusters on the (001) Surface

Namkung M., Wincheski R.A., NASA Langley Research Center, US

We have studied thermal expansion of the surface layers of the hexagonally reconstructed Au (001) surface using a classical Molecular Dynamics (MD) simulation technique with an Embedded Atomic Method (EAM) type many-body potential. We find [...]