Acta inc., using karagozian and case as a subcontractor, proposes to develop specifications and a computer program which can be used in the evaluation of the system effectiveness of various candidate advanced basing concepts. acta will make use of software (astep) which it has already developed as a… More

The recent DNA-sponsored conference on ¿Verification and Validation of Nonlinear Structural Dynamic Codes,¿ September 1993, highlighted the need for reliable models as well as codes. At the present time there are no generally available software tools for utilizing experimental data to correct and… More

The proposed innovation is a new computational and analytical structural acoustic technique for aircraft interior noise prediction. Its innovative quality resides in the unifying theory by which conventional finite element analysis (FEA) and statistical energy analysis (SEA) are related through the… More

A six-month Phase I project is proposed to demonstrate the feasibility of a hierarchical method for more accurately estimating the material parameters of constitutive models in DYNA3D, thereby enhancing the fidelity of nonlinear finite element models. Thehierarchical approach combines the distinct… More

A 24-month Phase II project is proposed to develop and implement models that capture the fidelity of high fidelity physics-based (HFPB) models in a fast-running format. It is anticipated that such models will be incorporated in certain modules of theModular Effectiveness/Vulnerability Assessment… More

A 24-month Phase II project is proposed to develop and implement models that capture the fidelity of high fidelity physics-based (HFPB) models in a fast-running format. It is anticipated that such models will be incorporated in certain modules of theModular Effectiveness/Vulnerability Assessment… More

"The proposed project will demonstrate the feasibility of developing a Stochastic Neural Network for Missile Reliability Prognostics. A neural network model will be developed to predict missile reliability based on the environmental history of particularmissiles. Prediction training will be… More

The proposed project will develop prototype software for a Stochastic Neural Network for Missile Reliability Prognostics. A neural network model will be developed to predict missile reliability based on the environmental history of particular missiles.Prediction training will be employed to predict… More

This STTR project will develop and validate a robust, scalable computational capability for the simulation of weapon-target interactions of interest to the Army. The proposed algorithm is based on the FLIP (Fluid Implicit Particle) - MPM (Material PointMethod) - MFM (Multiphase Flow Method)… More

The proposed project will demonstrate the feasibility of developing a data driven prognostic fault tolerant smart weapon system concept for the Airborne Laser. A real-time prognostic health management (PHM) system will be developed to track the likelihoodof future system or subsystem failures and… More

This STTR project will develop and validate a robust, scalable computational capability for the simulation of weapon-target interactions of interest to the Army. The proposed algorithm is based on the FLIP (Fluid Implicit Particle) - MPM (Material Point Method) - MFM (Multiphase Flow Method)… More

A Phase I Project is proposed to demonstrate the feasibility of developing Multi-hit Nonlinear Progressive Collapse Models for Fixed Targets. The stated objective is to develop High-Fidelity Physics-Based (HFPB) fast-running models (FRMs) for simulating the nonlinear progressive collapse of… More

ACTA Incorporated and the Center for Systems Reliability (CSR) at Sandia National Laboratories propose a seven month STTR Phase I Project to demonstrate the feasibility of developing Fault Diagnostics, Prognostics, and Self-Healing Control of Navy Electric Machinery. The new generation of Navy high… More

The Phase I study will investigate the feasibility of developing High Fidelity Physics-Based (HFPB) Fast-Running Models (FRMs)for predicting the debris throw due to an explosion in a munitions storage or handling facility. The study will determine the best HFPB computer code that can be used to… More

Phase I showed the feasibility of developing of HFPB Debris Throw Models for Ordnance Storage and Handling Facilities using the Material Point Method (MPM) as implemented in Los Alamos' CartaBlanca code. In Phase II, a version of CartaBlanca will be installed on the Navy's supercomputer and be… More

ACTA Incorporated (ACTA) and Sandia National Laboratory (SNL) propose a six-month STTR Phase I feasibility Project titled "Expedited Transition of Propulsion Modeling & Simulation Capability." The stated objective of this solicitation topic is to expedite industry transition of a validated safety… More

ACTA Inc. and Los Alamos National Laboratory propose to develop a high fidelity physics based modeling and simulation toolset for use in evaluating the hazards and consequences associated with hypergol fuel accidents for use in missile defense applications. Los Alamos' CartaBlanca multi-physics… More

ACTA Incorporated and Sandia National Laboratories propose a seven month STTR Phase I project to demonstrate the feasibility of developing an automated simulation of aircraft structural joints in structural analysis models. The technical approach includes an expert system executive to create… More

ACTA Incorporated (ACTA) is pleased to propose a six-month SBIR Phase I feasibility Project titled "Hypervelocity Intercept Modeling With First-Principle, Physics-Based Tools." The Lockheed Martin Missiles and Space at Sunnyvale, California will support ACTA with their technical expertise and… More

Predicting the damage to structures commonly found in Urban Environments to the effects of intentional or accidental small explosions is a difficult problem, often resulting in hazards to nearby personnel and equipment. Numerous commercial and military organization desire models that can predict the… More

A nine-month Phase I project is proposed to demonstrate the feasibility of developing high-fidelity physics-based (HFPB) weapons effects FRMs for reinforced concrete walls and floor/ceiling slabs to meet current AFRL requirements. Modeling issues for both hardened bunkers and non-hardened… More

ACTA and Sandia National Laboratories propose to quantify and propagate substructure modeling uncertainty for reduced-order substructure models to higher levels of system assembly, thereby enabling predictive simulations of engineering designs with quantified margins and uncertainties for… More

A 24-month SBIR Phase II Project titled"Weapons Effects FRMs for Small Munitions on Urban Reinforced Concrete Walls/Slabs."The stated objective of this solicitation topic is to develop High-Fidelity Physics-Based (HFPB) Fast-Running Models (FRMs) for simulating the effects of small weapons… More

A 24-month SBIR Phase II Project titled "Weapons Effects FRMs for Small Munitions on Urban Reinforced Concrete Walls/Slabs." The stated objective of this solicitation topic is to develop High-Fidelity Physics-Based (HFPB) Fast-Running Models (FRMs) for simulating the effects of small weapons in… More

ACTA proposes a SBIR Phase I project to develop an accurate structural dynamic modeling tool for virtual vibration testing of external stores. The goal is to develop a structural dynamics modeling tool which will provide an accurate physics-based solution for predicting non-linear vibration… More

A 24 month SBIR Phase II Project is proposed to develop weapons effects fast-running models (FRMs) for reinforced concrete walls and floor/ceiling slabs in hardened bunker-type structures. The objective is to develop High-Fidelity Physics-Based (HFPB) fast-running models (FRMs) for simulating the… More

A 24-month SBIR Phase II Project titled"Weapons Effects FRMs for Small Munitions on Urban Masonry Walls"is proposed. The stated objective of this solicitation topic is to develop High-Fidelity Physics-Based (HFPB) Fast-Running Models (FRMs) for simulating the effects of small weapons in… More

ACTA and Sandia National Laboratories propose to quantify and propagate substructure modeling uncertainty for reduced-order substructure models to higher levels of system assembly, thereby enabling predictive simulations of engineering designs with quantified margins and uncertainties for… More

The secondary debris generated during the breakup of walls and slabs interacts with the high pressure gases passing through cracks in the separated material. This interaction causes a reduction of blast/gas loads in the blast room and acceleration (and sometimes further breakup) of secondary debris… More

Functional Kill of buildings and below-ground structures is becoming an increasing area of concern for war fighters. Functional Kill refers to defeating a building by rendering it or its contents (infrastructure) functionally incapable of performing the overall mission for which the building was… More

ABSTRACT: Most of the air delivered air force weapons are designed to detonate inside structures. However, due to targeting inaccuracies and other reasons they may land outside a structure and could detonate partially or fully buried in soil. These events could result in collateral damage to… More

ABSTRACT: Functional Kill of buildings and below-ground structures is becoming an increasing area of concern for war fighters. Functional Kill refers to defeating a building by rendering it or its contents (infrastructure) functionally incapable of performing the overall mission for which the… More