Computational Mechanics and Material Modeling
Abstract
Projects in this technical focus area develop computational tools, material models, and calibration and validation databases which support the design and development of weapon systems. These capabilities are intended to predict the complex phenomena across significant length (meso to continuum) and time (microsecond to minute) scales. The tools will provide coupled, multi-physics and chemistry modeling capabilities that are scalable to massively parallel architectures for solving very diverse problems across the weapons systems’ research and development and acquisition communities. Numeric tools are the foundation that makes possible the integration of mechanics, materials science, physics, and chemistry. This focus area also includes an extensive experimental component consisting of phenomenological or “discovery” experiments that drive model development; calibration experiments to compliment models; and experiments for model and code validation. The specific projects in computational mechanics and material modeling are: – CTH, SIERRA shock physics code & model development, and experiments: impact initiation of high explosives; composite material modeling; mesoscale experiments, model development, and analysis; coupled physics code development; and models for localization and failure. – Arbitrary Lagrangian-Eulerian (ALE3D) code and model development. – Composite case technology and modeling. – Dynamic properties of materials. – Energetic materials and polymers under dynamic and thermal loading. – Fragment impact and response experiments.
Document Details
- Document Type
- Accomplishment
- Publication Date
- Oct 01, 2014
- Source ID
- 20e8bd26961785a9fe59812eb7c1048b