Prediction of Local Penetration/Damage and Global Dynamic System Response for Lethality/Survivability: A Multi-Time Scale Approach
Abstract
The Future Combat Systems (FCS) will transform the Army into a faster, more agile force with more lethal and more survivable capabilities. The FCS requires computational technologies that can simulate and assess lethality and survivability of the combat systems under real battlefield situations involving the global structural dynamics at system level, and highly localized contact-impact, damage, failure, penetration, and fragmentation. In order to integrate the aforementioned capabilities into a stand alone computational code, a computational framework taking into consideration different mechanics descriptions and formulations, different physical events such as structural dynamics, contact-impact, damage, failure, penetration, and fragmentation need to be carefully addressed. In this regard, different computational formulations in space such as finite element methods and meshless methods, and in time such as implicit algorithms, explicit algorithms, and the like need to be seamlessly integrated. Existing technologies focus on an isolated physical event or a limited coupled physical event. A computational framework that can integrate the aforementioned multi-physical events for combat systems commonly encountered in real battlefield situations does not exist to-date. We address the above issues with applications to engineering problems, and the present approach compares well with experimental results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2006
- Accession Number
- ADA481921
Entities
People
- D. Sha
- K. K. Tamma
- Xin Zhou
- Y. Miller
Organizations
- United States Military Academy