
Weapons Effects FRMs for Contact or Embedded Detonations in Fixed TargetsAward last edited on: 9/9/2023
Sponsored Program
SBIRAwarding Agency
DOD : AFTotal Award Amount
$1,649,897Award Phase
2Solicitation Topic Code
AF141-141Principal Investigator
Gamage Wije WathugalaCompany Information
ACTA Inc (AKA: Engineering Mechanics Associates)
2790 Skypark Drive Suite 310
Torrance, CA 90505
Torrance, CA 90505
(310) 530-1008 |
acta_torrance@actainc.com |
www.actainc.com |
Location: Multiple
Congr. District: 36
County: Los Angeles
Congr. District: 36
County: Los Angeles
Phase I
Contract Number: FA8651-14-M-0161Start Date: 6/27/201 Completed: 3/26/2015
Phase I year
2014Phase I Amount
$149,917Benefit:
In recent years, the US military finds itself more involved in urban warfare. In urban warfare or MOUT (Military Operations in Urban Terrain), armed forces have to exhibit caution so that their actions will not harm civilians and friendly forces in the area. These precautions exclude the use of large weapons and therefore the military is extremely interested in the use of more precise small weapons. These small weapons are often used to breach urban walls and can be inert projectiles or explosive projectiles (cased weapons) that a) detonate upon impact or b) set for a delayed detonation during partial penetration in order to maximize damage. The physics of the inert or explosive impacts and the resulting breakup and debris generation of these munitions are very complex. Therefore, there is a need to develop validated small munitions models capable of determining the consequences of their use in order to assist military planners and soldiers in the field. This Phase I project will result in (a) improved HFPB (High Fidelity Physics Based) tools for simulating these applications, (b) prototype global FRMs for stochastic debris source models for RC and brick walls, (c) prototype FRM for blast energy behind the target wall, and (d) Phase II plan to develop FRMs that can predict hole size, shape, and stochastic debris cloud due to small munitions impact penetrating and exploding in urban walls.
Keywords:
Weapon-Target Intera
Phase II
Contract Number: FA8651-15-C-0174Start Date: 6/30/2015 Completed: 9/30/2017
Phase II year
2015(last award dollars: 2016)
Phase II Amount
$1,499,980Benefits:
Urban operations have become increasingly important to the military planners. Urban operations frequently require additional theatre considerations, such as verifying that specific tactics will minimize harm to civilians, friendly forces, and unaffiliated structures in the area. Such precautions exclude the use of large weapons and therefore military planners must focus on the use of smaller weapons. These small weapons are often used to breach urban walls and can be inert projectiles or explosive projectiles (cased weapons) that detonate upon impact or are set for a delayed detonation during partial penetration in order to maximize damage. The physics of the impacts and the resulting breakup and debris generation of these munitions is very complex and the number of urban scenarios extremely large. The uncertainties are also very large. The class of HFPB models that can simulate the complex phenomena and variability involved requires vast computer resources and skilled personnel to setup and run the models; such an option is not suitable for military planners and commanders who need rapid answers. Therefore it is necessary to develop FRMs that capture the necessary outputs and predictive uncertainty of the HFPB simulations but which nonetheless run very quickly. For example, commanders might like to know what munitions to use and where to impact a wall of a particular construction material (e.g., concrete) in order to breach the wall and create a hole that will enable access into a building. They might also require estimates of debris lethality to people and infrastructure. The fast-running models developed in this project will benefit military planners by supporting these kinds of decisions well beyond any current capabilities.
Keywords:
HFPB (High Fidelity Physics Based), Finite Element, Computational Fluid Dynamics, Fast Running Models (FRMS), Predictive Uncertainty, Fluid/Structure Interaction