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Integrated Modeling of Polymer Composites Under High Energy Laser Irradiation

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Technical Report,22 Jul 2013,30 Sep 2015

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Air Force Research Laboratory Wright Patterson Air Force Base United States

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This report is a summary of research activities funded by AFOSR Lab Task 13RXCOR. An integrated computational materials science and engineering ICMSE approach was used to investigate the role of fiber-matrix interfaces in controlling optical and thermal energy flow in structural composite materials subject to high energy laser irradiation. Modeling tools, including molecular dynamics and finite elements methods, were used to characterize optical and thermal transport at multiple length scales spanning from nanometers to millimeters. Advanced experimental characterization techniques were used to parameterize and validate these models. Two new experimental techniques were developed at AFRL as part of this project lateral thermal transport measurements using scanning thermal microscopy SThM, and microscale temperature sensing via gold nanorods. Modeling and experimental techniques are explained, and important considerations for future work are outlined. Peer-reviewed articles containing detailed results and analysis are included as an appendix.

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