Prediction and Analysis of Material Response to Impact and Shock Loading Using a Sharp-Interface Eulerian Methodology
Abstract
Numerical methods and a computer code have been developed for the simulation of multimaterial interactions in a general setting. Applications of concern to the Air Force include impact and penetration of targets, hazard prevention in the case of accidental impact on energetic materials, agent defeat, control of atmospheric spreading of hazardous multiphase material following impact, etc. The equations governing material deformation and flow are solved in a Eulerian setting on a fixed Cartesian mesh. High-accuracy shock capturing schemes are applied to compute the nonlinear wave-propagation phenomena. Complex boundaries are tracked and their interactions are simulated using level-sets. Large deformations under high strain-rate conditions and multimaterial and multiphase interactions can be handled. The computer code has been parallelized and local mesh refinement techniques have been implemented to better resolve flow features.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2005
- Accession Number
- ADA441412
Entities
People
- H. S. Udaykumar
Organizations
- University of Iowa