Highly accurate weapons effect simulations
Comprehensive and powerful
Impetus DEFENSE is a product tailored towards defense customers, such as military vehicle manufacturers, ammunition and weapons producers, providers of blast protection and fortification, as well as national defense agencies.
Impetus DEFENSE expands the popular Impetus BASIC package with modules for Discrete Particle (DP), Smoothed Particle Hydrodynamics (SPH), Computational Fluid Dynamics (CFD), Vulnerable Area Assessment (VAA) and Fragmentation Tool.
The complementing modules increase the range of applicability, from the modelling of solid structures at small or large deformations, to soils (DP), explosives and gases (CFD) and liquids or solid materials undergoing extreme deformations (SPH). The different modules are fully coupled to each other.
In addition, Impetus DEFENSE comes with a powerful interactive fragment tracking and statistics tool embedded in the GUI.
An Impetus DEFENSE license also unlocks access to a large database of threat models, templates and material calibrations on Impetus MARKET.
This product is subject to export controls by the Norwegian and Swedish authorities.
STRUCTURAL RESPONSE
ENERGETIC PROCESSES
VULNERABLE AREA ASSESSMENT TOOL
TERMINAL BALLISTICS TEMPLATE
Specifically developed for defense applications
Thanks to a carefully crafted combination of fully coupled modules and GPU acceleration, Impetus DEFENSE can be used to model shaped charge formation, interior and terminal ballistics, structural response to air blasts (at any stand-off distance), fragmentation and full vehicle response to IED’s.
Predicted fragment distributions can be imported directly into the GUI, for subsequent tracking (with air drag effects) and interaction with arbitrary user defined targets.
Impetus Afea works closely with leading defense manufacturers and defense agencies in developing and refining our products. We have invested heavily over many years in building up our core algorithms and used experimental data to calibrate and validate the performance.
Our partners provide valuable feedback in this never ending loop of incremental improvements.This research has often been conducted in direct collaboration with our defense partners and has enabled us to achieve robust and reliable results within most aspects concerning the terminal effects of blast and ballistics.
We also work closely with leading research institutes and selected academic institutions. This provides us with access to world leading competence and experimental facilities and our software solution offers a unique complement to the research work. Projects are mix of self-funding and governmental funding.
The focus on research, continuous iterations and improvements has allowed us to integrate knowledge of new processes into operational software capabilities, often in the form of readily available objects on Impetus MARKET. It allows us to achieve a high level of technological maturity.
In addition we are active sponsors and participants in several symposia, events and working groups globally, as well as our own Impetus Conference held bi-annually in Norway.
As a user of Impetus, you directly benefit from the knowledge that our product has a solid foundation in process knowledge, engineering competence and is backed by real data and experiments. We are constantly refining the tool and improving steadily by each iteration.
computational engines
Advanced, robust and highly accurate
Our computational engines comprise the backbone of our product offering. They have been fine-tuned over many years using the most robust empirical data.
Main features
Our specialist areas
High explosives and fragmentation
Model and predict fragmentation processes. Utilise the built-in library with high explosive calibrations and advanced material models accounting for rate effects and different failure modes.
Explosives and detonation products are typically modelled with a Computations Fluid Dynamics (CFD) approach and fragmenting shells with Finite Elements (FE). Setting up a simulation model for full CFD-FE coupling is straightforward.
Terminal ballistics
Impetus DEFENSE includes a pre-designed template for terminal ballistics processes and a comprehensive library of predefined threats. The generated command files are open for customisation according to the user’s specific requirements.
A precise description of both the threat and target is crucial. Utilise our advanced material models, with ability to account for relevant physical mechanisms at extreme pressures and strain rates.
IED and mine blast
The ATD response is automatically evaluated and compared to standard damage criteria. An automatically generated summary is available from the GUI.
Benefit from a separately licensable fully calibrated 50th percentile frontal impact Hybrid III dummy available on Impetus MARKET.
Shaped charge
Simulate your Shaped Charge formation process using a computationally efficient coupled CFD-SPH approach. Explosive materials are generally simulated using Eulerian Computational Fluid Dynamics (CFD), while solid materials like liner and casing are modelled with Smoothed Particle Hydrodynamics (SPH).
Jet length, shape, velocity profile and particulation data are automatically output and easily visualised in the GUI. To get started, we suggest utilising our built-in templates for Shaped Charges and EFPs.
Additional capabilities
Interior ballistics, underwater explosion, fragmentation and more
Vehicle response to IED’s
Build a detailed model of your vehicle. Full coupling between IED, soil ejecta and vehicle structure. Automatic reporting of ATD response and comparison to standard damage criteria.
Terminal ballistics
Impetus DEFENSE comes with a built-in template for terminal ballistics processes and an extensive library of pre-defined threats.
Shaped Charge formation
Simulate your Shaped Charge formation process using a coupled CFD-SPH approach. Jets statistics is automatically output and can be visualised in the GUI.
Fragmentation
Thanks to our node splitting technique, fragmentation processes can be modelled using Finite Elements, without element erosion and its associated loss of mass.
Air blast and shock waves
Our GPU-accelerated ultra-fast CFD solver is ideally suited for air blast simulations. Model anything from contact detonations to urban blast scenarios.
Structural response
Cutting-edge concrete model designed for both quasi-static and highly dynamic loading conditions. A meticulously calibrated and well-documented material object is readily accessible on the Impetus MARKET.
Concrete
Cutting-edge concrete model designed for both quasi-static and highly dynamic loading conditions. A meticulously calibrated and well-documented material object is readily accessible on the Impetus MARKET.
Underwater explosions (UNDEX)
Use Smoothed Particle Hydrodynamics (SPH) to simulate water and investigate phenomena such as bubble oscillations, jetting, collapse, and interactions with surrounding structures.
Interior Ballistics (IB)
Model propellants and follow the combustion process. The gas dynamics are simulated using Computational Fluid Dynamics (CFD) and structural components with Finite Elements (FE).
Ammunition sensitivity
Apply Lee-Tarver’s ignition and growth model for in-depth deflagration-to-detonation analyses, or practical pressure-time-based criteria for large-scale sympathetic detonation studies.
Fragment Simulating Projectile (FSP)
Easy modelling of FSP-target interaction employing pre-calibrated FSP object on Impetus MARKET along with the terminal ballistic template.
Explosively Formed Projectile (EFP)
Simulate the formation of an EFP using parameterised template on Impetus MARKET. The generated projectile can be exported to subsequent terminal ballistics models.
Hand grenades
Model the detonation process and the subsequent effect of fragments and blast loads on a structure. Fast shrapnel trajectory tracking with the interactive fragment tool.
Projectiles
Explore the wide array of pre-calibrated threats available on Impetus MARKET.
Ricochet simulations
The terminal ballistics template allows engineers to predict ricochet by effortlessly adjusting parameters such as pitch, yaw, and impact angle.
Library of high explosives
The Computational Fluid Dynamics (CFD) engine is equipped with a library of Jones-Wilkins-Lee (JWL) equation-of-state calibrations for the most commonly used high explosives.
Wind tunnel/Exterior ballistics
Our virtual wind tunnel allows for tumbling and deforming objects. It is optimal for hypersonic flow and can be used for certain aspects of exterior ballistics.
Urban blast
The Computational Fluid Dynamics (CFD) engine is a rapid tool for simulating urban blasts. Its support for mapping between grids is valuable when modelling very large stand-off distances.
Blast loading on laminated windows
Explicit modelling of failure and crack propagation using higher order elements and node splitting. Geometrically correct representation of PVB and glass.
Mobility
An extremely robust handling of non-linearities gives Impetus Solver a competitive advantage in mobility analysis scenarios involving complex contacts and materials undergoing large deformations.
Hyper-velocity impact
Study the effect of space debris impacting satellite structures in the hyper-velocity regime.
Hydrodynamic ram
Surface SPH allows for detailed view of material interfaces otherwise not possible with particle simulation.
Bird strike
Used within aeronautics to design and evaluate improvements to structures and components.
Ceramics
Unique in-house developed models for ceramic materials in both tensile and compressive loading.
Dynamic relaxation
Use our specially designed functionality to cut high frequencies and obtain efficient computational performance.
Hybrid III dummy (including MIL-LX leg)
Fully calibrated 50th percentile frontal impact Hybrid III dummy available on Impetus MARKET.
Long rod impact
Select from a multitude of APFSDS threats and advanced protective materials from the Impetus MARKET library.
full list of defense features
Blast and terminal ballistics
- Long rod impact (APFSDS)
- Library of high explosives
- FSP (Fragment simulating projectile)
- Buried charges (Mines & IEDs)
- Shaped charge (Circular & linear)
- EFP (Explosively formed projectile)
- Air blast loading (Close range & Long range)
- Bird strike
- Fragmenting charges/High explosives
- Underwater explosions (Close range and Long range)
- Deflagration to detonation processes (insensitivity of munitions)
- Ricochet simulations
- Small/Medium/Large calibre projectiles
- Library of high explosives
- Wind tunnel/exterior ballistics
- Urban blast
- Hand grenades
- Mobility
- Hyper-velocity impact
- Hydrodynamic RAM
- Blast loading laminated glass
- Dynamic relaxation
- Structural response
Target materials
- High strength steel
- Polymers
- Rubber
- Reinforced Concrete
- Ceramics
- Fibre composites
- Laminated glass
- Foams
- ERA (Explosive Reactive Armour)
- Metallic materials
structures
- Military vehicles
- VIP Vehicles
- Protective Equipment/vests (PPE)
- ATD HIII model
- Buildings/Structures
- Inner ballistics – powder burn
tools
- VAA Tool (Vulnerability Assessment Analysis)
- Buried mine (IED) loading on vehicles
- Hybrid III ATD dummy (including MIL-LX Leg)
miscellaneous
- Fragmentation trajectory analysis tool
- Terminal ballistics template
Impetus MARKET
Impetus MARKET is our library of materials, object meshes, template files and projectiles designed to save you time and effort. Sign up today and get access to high quality objects for use in your simulation projects!
Visit market
Pre-license trial
Evaluate before you buy
Our engineers will help you select and calibrate appropriate project simulations to best determine whether Impetus Solver is the best fit for your needs.
Secure & scalable GPU resources
Our secure CLOUD service offers flexible access to scalable GPU processing from anywhere in the world. We are ISO 27001 certified.
Our solution provides high performance computing without the need for localised investment in hardware and maintenance.
