The science of dynamic compression at the mesoscale and the Matter-Radiation Interactions in Extremes (MaRIE) project

18th APS-SCCM; 24th AIRAPT

Barnes, Cris W.^1 ; Funk, David J.^1 ; Hockaday, Mary P.^1 ; Sarrao, John L.^1 ; Stevens, Michael F.^1

Los Alamos National Laboratory, Los Alamos

NM

87545, United States^1

关键词: Dynamic compression;    Dynamic deformation;    Macroscopic behaviors;    Material microstructures;    Matter-radiation interaction;    Prediction and control;    Scientists and engineers;    Tailored properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/9/092001/pdf
DOI  :  10.1088/1742-6596/500/9/092001

来源: IOP

【 摘 要 】

A scientific transition is underway from traditional observation and validation of materials properties to a new paradigm where scientists and engineers design and create materials with tailored properties for specified functionality. Of particular interest are the regimes of materials' response to thermo-mechanical extremes including materials deforming under imposed strain rates above the quasi-static range (i.e. > 10-3s-1), material subjected to imposed shocks, but also material response to static, high-pressures. There is a need for the study of materials at the «mesoscale,» the scale at which sub-granular physical processes and inter-granular organization couple to determine microstructure, crucially impacting constitutive response at the engineering macroscale. For these reasons Los Alamos is proposing the MaRIE facility as a National User Facility to meet this need. In particular, three key science challenges will be identified: Link material microstructure to macroscopic behavior under dynamic deformation conditions; Make the transition from observation and validation to prediction and control of dynamic processes; and Develop the next generation of diagnostics, dynamic drivers, and predictive models to enable the necessary, transformative research.