Development of ICME Tools for Materials Development for Naval Applications
Abstract
Development is proposed of urgently needed tools for an Integrated Computational Materials Engineering (ICME) approach to materials development in the context of naval needs. Accordingly, the objective of the proposed project will be to instantiate a set of tools for reconstruction, analysis, synthesis and simulation of three-dimensional materials. The technical approach for implementing this set of tools will be based on the use of two key platforms, along with links to finite element codes already in use by Navy researchers. The first is the Dream3D software package, which was developed by the US Air Force as an open source, extensible framework for the reconstruction of 3D materials microstructure from cross-sectional data, statistical analysis and synthesis of 3D microstructures based on analyzed measurements. The second is the MASSIF (Micromechanical Analysis of Stress-Strain Inhomogeneities with Fourier Transforms) code, which is a massively parallel code for full field micromechanical calculations of materials response. It uses a spectral approach with fast Fourier transforms, which means that it scales as NlogN, i.e., almost linearly, which allows large 3D images to be used. With standard FFT packages such as FFTW, it also enables MPI parallelization to be used. Since it operates directly on images there is no need for generating meshes. Multiscale simulations of alloy microstructure are a natural application for this package especially as it has been integrated with Dream3D via use of the Hierarchical Data Format (HDF) file structure for both input (from Dream3D) and output (e.g., back to Dream3D). In addition, Dream3D can export materials microstructure in the form of surface meshes, which provide a convenient starting point for the generation of volumetric meshes. Exporting images to kinematic Monte Carlo codes such as the Sandia-supported spparks code is straightforward from Dream3D. Specific capabilities to be developed are described in the proposal and include constitutive equations, heavily twinned (lamellar) microstructures, links to dislocation dynamics codes, links to atomistic codes, microstructural evolution via grain growth and recrystallization, and microstructural development in rapid solidification such as found in 3D printing of metals. The anticipated outcome of the research is that the materials modeling capability in Navy research and development facilities will be substantially enhanced with new algorithms being implemented. The benefit to the Navy will be to accelerate the development of new and improved structural materials for a variety of needs along with providing support to Navy researchers for Integrated Computational Materials Engineering (ICME).
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 19, 2018
- Source ID
- N000141812786
Entities
People
- Anthony D Rollett
Organizations
- Massachusetts Institute of Technology
- Office of Naval Research
- United States Navy