DYTRAN - FSI
CAE tool for Explicit Dynamics and Fluid Structure Interaction
OVERVIEW
Dytran is an explicit finite element analysis (FEA) solution for simulating short-duration events like impact and crash, and to analyze the complex nonlinear behavior that structures undergo during these events. Dytran enables you to study the structural integrity of designs to ensure that final products stand a better chance of meeting customer safety, reliability, and regulatory requirements.
Dytran delivers a structural, material flow and coupled FSI analysis capabilities in a single package. Dytran uses a unique coupling feature that enables integrated analysis of structural components with fluids and highly deformed materials in one continuous simulation.
Dytran delivers a structural, material flow and coupled FSI analysis capabilities in a single package. Dytran uses a unique coupling feature that enables integrated analysis of structural components with fluids and highly deformed materials in one continuous simulation.
Dytran is an explicit finite element analysis (FEA) solution to simulate short-duration events like impact and crash, and to analyze the complex nonlinear behavior that structures undergo during these events.
Dytran enables engineers to study the structural integrity of designs to ensure that final products meet customer safety, reliability, and regulatory requirements. Dytran delivers structural, material flow and coupled FSI analysis capabilities in a single package.
Using a unique coupling feature that enables integrated analysis of structural components with fluids and highly deformed materials in one continuous simulation, Dytran provides realistic solution to complex problems.
• Transient structural analysis: Using explicit solver technology, Dytran provides faster solution to large, complex transient dynamic problems. Users can use from a wide variety of elements that include solid, shell, beam, membrane, connectors and rigid elements, to model the structures.
• Nonlinear materials: Select from a wide range of material models to model the nonlinear response and failure. The available material models include linear elasticity, yield criteria, equations of state, failure and spall models, explosive burn models and composite materials to name a few.
• Contact analysis: Model interaction between multiple parts and assemblies with robust contact analysis capability. The interaction may include frictionless contact, sliding with frictional effects and separation. Single surface contact can also be used to model buckling of structures where structures may fold onto themselves.
• Fluid-structure interaction: Analyze fluid behavior and its effects on structural response in a single model with the help of a combination of Lagrangian and Eulerian solvers in Dytran. Interaction between the fluids and structures is achieved through a coupling surface created on structures.
• High performance computing: Achieve higher productivity by taking advantage of the latest numerical methods and high performance computer hardware. Analyses can be run on a broad range of machines including desktop computers to supercomputers. Users can also benefit from the parallel processing capabilities to achieve faster solutions.
DYTRAN - CAPABILITIES
• Advanced, explicit nonlinear solver technology for simulating and analyzing extreme, short duration dynamic events.
• Robust and efficient three-dimensional contact and coupling algorithms using Lagrangian finite element method for structural analyses and Eulerian finite volume method for fluids and multi-material flow analyses.
• Complete finite element model library that includes beams, shells, solids, springs, and dampers with large displacement formulation.
• Full range of nonlinear material models for metals, composites, soils, foam rubber, liquids, and gases.
• Distributed Memory Parallel (DMP) support for Eulerian solver and coupling surface computation
BENEFITS
• Minimize the costs of physical prototyping and eliminate redundant test cycles through Dytran’s streamlined modeling flow and most advanced fluid-structure interaction (FSI) simulation capabilities.
• Quickly obtain detailed insight into the nonlinear, dynamic behavior of real-world problems that cannot be easily solved with other simulation tools.
• Model complex scenarios and perform “whatif” analyses earlier in the design cycle within a single analysis package and simulation environment.
• Apply results from Dytran to improve the quality of your products and minimize the probability of failures and costly redesigns.
Accurate, Robust Analysis for Diverse Applications
Dytran’s accuracy has been proven through correlation with physical experiments. Dytran helps engineers predict how a prototype would respond to a variety of real-world dynamic events and to examine potential causes for product failure. Some examples include:
• Aerospace Applications: Aircraft ditching, fuel tank sloshing and rupture, bird strike simulation, engine blade containment, aircraft crashworthiness, seat design and safety, aircraft and cargo containment hardening.
• Automotive Applications: Airbag design and occupant safety (out of position studies), dummy modeling and seat design, vehicle impact and crash testing, tire hydroplaning, fuel tank sloshing and rupture.
• Military and Defense Applications: Shaped charge simulation and weapons design, projectile penetration and perforation of targets, hydrodynamic ram (HRAM), ship collision, underwater shock explosion (UNDEX), blast resistance and survivability.
• Other Industrial Applications: Bottle and container design, paper feeding, drop testing, sports equipment impact analysis, packaging design.