LS-DYNA

Advanced general-purpose multiphysics simulation software package

LS-DYNA

LS-DYNA in Vehicle Design

LS-DYNA in Metal Forming

LS-DYNA in Aerospace

LS-DYNA in Civil Engineering

LS-DYNA in Defense

LS-DYNA for Drop Test Analysis

LS-DYNA for Oil and Gas

LS-DYNA for Containment

LS-DYNA for Manufacturing

LS-DYNA for Multiphysics

Incompressible CFD Solver

Electromagnetic Solver

CESE Compressible CFD Solver

LS-DYNA for other applications

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Ls-Dyna

LS-DYNA® is a highly advanced general purpose nonlinear finite element program that is capable of simulating complex real-world problems. It is utilized by the automobile, aerospace, electrical, electronics, construction, military, manufacturing, and bioengineering industries to design and develop products.

LS-DYNA is suitable to investigate phenomena involving large deformations, sophisticated material models and complex contact conditions for structural dynamics problems. LS-DYNA allows switching between explicit and different implicit time stepping schemes. Disparate disciplines, such as coupled thermal analyses, Computational Fluid Dynamics (CFD), fluidstructure interaction, etc.

Ls-Dyna Capabilities
Ls-Dyna Capabilities

Ls-Dyna Capabilities

  • Nonlinear dynamics
  • Parallel processing (SMP, MPP)
  • Rigid body dynamics
  • Quasi-static simulations
  • Normal modes
  • Linear statics
  • Thermal analysis
  • Fluid analysis (Euler, ALE)
  • Failure analysis
  • Underwater shock
  • Crack propagation
  • Real-time acoustics
  • Earthquake ground motion
  • Design optimization
  • Implicit springback
  • Multiphysics coupling (structural, thermal, fluid, acoustic, etc.)
  • Structural-thermal coupling
  • SPH (Smooth Particle Hydrodynamics)
  • EFG (Element Free Galerkin)
  • BEM (Boundary Element Method)
  • Fully automated contact analysis
  • Function input (FORTRAN or C syntax)
  • Encryption of material input data
  • Redundant network license server
  • Electromagnetic simulation

LS-DYNA in Vehicle Design

LS-DYNA® is widely used by the automotive industry to analyze vehicle designs. LS-DYNA® accurately predicts vehicle behaviour in a collision and the effects of the collision upon the occupants. With LS-DYNA®, automotive companies and their suppliers can test car designs without having to tool or experimentally test a prototype, thus saving time and expense.

Vehicle Frontal Crash

Vehicle Frontal Crash

Side Impact

Side Impact

Airbag Simulation

Airbag Simulation

Seat & Seat Anchorage

Seat & Seat Anchorage

Roof Crush

Roof Crush

Rollover

Rollover

Pedestrian Safety

Pedestrian Safety

Noise, Vibration and Harshness

Noise, Vibration and Harshness

Vehicle Dynamic

Vehicle Dynamic

Computation Fluid Dynamic

Computation Fluid Dynamic

LS-DYNA in Metal Forming

One of LS-DYNA's most widely used applications is metal forming. LS-DYNA® accurately predicts the stresses and deformation experienced by metal, and determines if the metal will fail. LS-DYNA® supports adaptive remeshing and will refine the mesh during the analysis, as necessary, to increase accuracy and save time.

Sheet Metal Stamping

Sheet Metal Stamping

Deep Drawing Simulation

Deep Drawing Simulation

Line Die Simulation

Line Die Simulation

Progressive Die Simulation

Progressive Die Simulation

Tubular Hydroforming

Tubular Hydroforming

Hot Stamping

Hot Stamping

Roll Forming Simulation

Roll Forming Simulation

Metal Clinching

Metal Clinching

LS-DYNA in Aerospace

LS-DYNA® is widely used by the aerospace industry to simulate bird strike, jet engine blade containment, and structural failure.

Bird Strike

Bird Strike

Blade Containment

Blade Containment

Fuselage Impact

Fuselage Impact

Seat & Seat Anchorage

Seat & Seat Anchorage

Ice Ingestion

Ice Ingestion

Water Landing

Water Landing

Landing Gear

Landing Gear

Computation Fluid Dynamic

Computation Fluid Dynamic

LS-DYNA in Civil Engineering

LS-DYNA® is widely used by the civil engineering to simulate structural failure.

Infrastructure Protection

Infrastructure Protection

Building Protection

Building Protection

Structure Analysis

Structure Analysis

Seismic Analysis

Seismic Analysis

Blast Simulation

Blast Simulation

Dam Breakage

Dam Breakage

Tsunami Analysis

Tsunami Analysis

Computational Fluid Dynamic

Computational Fluid Dynamic

LS-DYNA in Defense

LS-DYNA® is widely used by the defense industry for weapon development.

Projectile Penetration

Projectile Penetration

Shape Charge

Shape Charge

Rail Gun

Rail Gun

Warhead Design

Warhead Design

LS-DYNA for Drop Test Analysis

LS-DYNA is used to investigate the behavior of products under impact conditions due to dropping. The application range includes consumer products, tools and also container design. For example, in the field of packaging design LS-DYNA helps to develop food containers capable of sustaining dynamic loading conditions during transport and storage.

Electronic Device Drop Test

Electronic Device Drop Test

Home Appliance Drop Test

Home Appliance Drop Test

Electrical Device Drop Test

Electrical Device Drop Test

Pen Drop Test

Pen Drop Test

Fuel Tank Drop Test

Fuel Tank Drop Test

Packaging Container Drop Test

Packaging Container Drop Test

LS-DYNA for Oil & Gas

LS-DYNA® is widely used by the oil & gas industry.

Jackup Analysis

Jackup Analysis

FSI Analysis

FSI Analysis

Ice Impact

Ice Impact

Wave Impact

Wave Impact

LS-DYNA for Containment

LS-DYNA acts as a tool to reduce risks of accidents that cause severe damage to communities or the environment by generating knowledge about how a system may fail. Thus, design changes can be made to reduce or even eliminate risks associated with the load cases considered.

For example, LS-DYNA is used to design the containers for transporting nuclear fuel elements. Thus, the container can remain closed and tightly sealed in the event of any foreseeable accident that may occur during transport.

Another example is the high-speed impact on objects, such as a turbine blade separated from the turbine may not cause harm to the embankment. The LS-DYNA enables the user to estimate the harm induced by the turbine blades that strike the turbine housing.

Analysis of Bullet Penetration Impact

Analysis of Bullet Penetration Impact

LS-DYNA for Manufacturing

The reliability and speed of production and packaging steps play a crucial role in determining the cost of the product in the commodity manufacturing industry. Fabrication processes generally involve nonlinear steps and use different physical effects. Its nonlinear capabilities and ability to couple different numerical schemes make LS-DYNA a unique tool for finding solutions to queries related to the layout of manufacturing processes.

For example, LS-DYNA can be utilized to investigate the deformation of a container during filling, handling, closure, packaging, and stacking. The performance of a snap fit after a series of opening and closings can be analysed as well as manufacturing tolerances and handling or transportation influences. Other applications may include folding tissues and packing bulk or granular goods.

Analysis of Rolling Process

Analysis of Rolling Process

Simulation of Metal Cutting

Simulation of Metal Cutting

Self-Piercing Rivet

Self-Piercing Rivet

Welding Simulation

Welding Simulation

LS-DYNA for Multiphysics

LS-DYNA includes three new solvers for Multiphysics purposes which are Incompressible Computational Fluid Dynamics solver (ICFD), Electromagnetism Solver (EM) and CESE Compressible CFD Solver.

FSI Analysis of Induction Heater

FSI Analysis of Induction Heater

Incompressible CFD solver

The ICFD solver can run as a stand-alone for pure CFD applications (the study of drag lift around bluff body and vehicles for example), or be coupled to the thermal and structural mechanical problems for linear and non-linear complex FSI and conjugate heat transfer applications.

Applications:
  • External aerodynamics for incompressible flows
  • Internal aerodynamics for incompressible flows
  • Sloshing, Slamming and Wave impacts
  • FSI problems
  • Conjugate heat transfer problems
Incompressible CFD solver
Incompressible CFD solver
Incompressible CFD solver
Incompressible CFD solver

Electromagnetism Solver

The EM module allows the introduction of a source of electrical current into solid conductors and the computation of the associated magnetic field, electric field, as well as induced currents. The main applications are magnetic metal forming or welding, induced heating, and so forth. The EM solver is coupled with the structural mechanics solver and the structural thermal solver.

Applications:
  • Electromagnetic forming
  • Electromagnetic welding
  • Electromagnetic bending
  • Inductive heating
  • Resistive heating
  • Rail-gun
  • Ring expansions
Electromagnetism Solver
Electromagnetism Solver
Electromagnetism Solver
Electromagnetism Solver

CESE Compressible CFD Solver

The CESE solver is a compressible flow solver based upon the Conservation Element/Solution Element (CE/SE) method. It has many non-traditional features, including a unified treatment of space and time, the introduction of conservation element (CE) and solution element (SE), and a novel shock capturing strategy without using a Riemann solver. To date, this method has been used to solve many different types of flow problems, such as detonation waves, shock/acoustic wave interaction, cavitating flows, and chemical reaction flows.

Applications:
  • EShock wave capturing
  • Shock/acoustic wave interaction
  • Cavitating flows
  • Conjugate heat transfer problems
  • Different kinds of stochastic particle flows (dust, water, fuel, etc.)
  • Chemically reacting flows (detonating flow, supersonic combustion, etc.)
CESE Compressible CFD Solver
CESE Compressible CFD Solver
CESE Compressible CFD Solver
CESE Compressible CFD Solver

LS-DYNA for Other Applications

It is important to be able to investigate multi-physics problems by coupling the different methods for research applications. For example, Eulerian and Lagrangian formulations can interact in one simulation. Solutions for thermal analysis and Computational Fluid Dynamics (CFD) or the Boundary Element Method (BEM) are provided in LS-DYNA.

One example can be found in the biomedical field. Here, questions related to whiplash, bone fractures, and the operating modes of heart valves or ankles are addressed. LSTC is dedicated to providing LS-DYNA for educational purposes.

Other LS-DYNA application:
  • Can and shipping container design
  • Electronic component design
  • Glass forming
  • Plastics, mold, and blow forming
  • Biomedical Products
  • Metal cutting
  • Earthquake engineering
  • Failure analysis
  • Sports equipment (golf clubs, golf balls, baseball bats, helmets)
  • Civil engineering (offshore platforms, pavement design)
Heart Valve Model by courtesy of The University of Sheffield

Heart Valve Model
By courtesy of The University of Sheffield

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