Tech Briefs

Molecular Engineering for Mechanically Resilient and Stretchable Electronic Polymers and Composites

The ability to predict the mechanical properties of organic semiconductors is of critical importance for roll-to-roll production and thermomechanical reliability of organic electronic devices. This research describes the use of coarse-grained molecular dynamics simulations to predict the density, tensile modulus, Poisson ratio, and glass transition temperature for poly(3-hexylthiophene) (P3HT) and its blend with C60. In particular, it is shown that the resolution of the coarse-grained model has a strong effect on the predicted properties.

Posted in: Briefs, Aerospace, Defense, Electronic Components, Electronics, Electronics & Computers, Composites, Materials, Mechanical Components, Semiconductors & ICs
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Electrodeposition of Metal Matrix Composites and Materials Characterization for Thin-Film Solar Cells

Metal matrix composites can electrically bridge the cracks that appear in semiconductor substrates and the composite grid lines.
Posted in: Briefs, Aerospace, Solar Power, Composites, Materials, Metals, Mechanical Components, Semiconductors & ICs
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Sensing Applied Load and Damage Effects in Composites with Nondestructive Techniques

Determine the effects of applied load on a composite structure.
Posted in: Briefs, Aerospace, Defense, Composites, Materials, Metals, Sensors, Inspection Equipment, Instrumentation, Measuring Instruments, Monitoring, Test & Measurement, Testing Procedures
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Technology Impact Forecasting for Multi-Functional Composites

Composites offer a possible solution to the conflicting design goals of making new aircraft lighter, stronger, faster, and more environmentally sustainable.
Posted in: Briefs, Aeronautics, Aerospace, Aviation, Defense, Composites, Materials
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Engineered Resilient Systems

A new application called TradeAnalyzer provides multiple visualization methods to examine, sort, and filter the attributes of data.
Posted in: Briefs, Aerospace, Data Acquisition, Computers, Software, Inspection Equipment, Instrumentation, Measuring Instruments, Monitoring, Test & Measurement
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Waveform Synthesis for Shock Response Spectrum Replication, Applied to Ground Vehicle Component Testing

Improved test methods will help alleviate the impact of shock levels on military and commercial ground vehicle components.
Posted in: Briefs, Aerospace, Defense, Power Management, Thermal Management, MEMs, RF & Microwave Electronics, Inspection Equipment, Instrumentation, Measuring Instruments, Monitoring, Test & Measurement, Testing Procedures
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SnowMicroPenetrometer Applications for Winter Vehicle Mobility

Characterizing the mechanical properties of snow and their impact on vehicle performance could improve vehicle winter mobility modeling.
Posted in: Briefs, Aerospace, Automotive, Mechanical Components, Inspection Equipment, Instrumentation, Measuring Instruments, Metrology, Monitoring, Test & Measurement, Testing Procedures, Automotive, Transportation
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