|About this Abstract
||7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
||Simulating the Microstructure to Property Relationships with Multiscale Recursive Micromechanics
||Evan Pineda, Joshua Kemppainen, Jamal Husseini, Brett Bednarcyk, William Pisani, Gregory Odegard, Scott Stapleton
|On-Site Speaker (Planned)
Thermoplastic materials, including polyether ether ketone (PEEK) and polyether ketone ketone (PEKK) are high-performance semi-crystalline polymers ideal for aerospace applications because of their excellent properties, toughness, resistance to aging, manufacturability and “tailorability.” Understanding the linkages between the microstructure of the material and its properties facilitate designing of the material itself. A multiscale recursive micromechanics (MsRM) model has been developed and implemented in the NASA Multiscale Analysis Tool (NASMAT). The microstructure of the thermoplastic is modeled using MsRM over three integrated scales (spherulite, lamellar stacks, granular crystal blocks). Inputs for the base constituents are obtained from molecular dynamics calculations. With this computational tool, the effects of microstructure to property relationships are simulated through parametric studies on crystallinity, spherulite packing, and morphology of the microstructure.