LS-DYNA® from Livermore Software Technology (LST) is the world's most advanced general-purpose nonlinear finite element program. It is capable of simulating complex real-world problems, and is widely accepted as the premier analysis software package for today's most challenging engineering applications.
LS-DYNA can predict how a prototype will respond to real-world events such as crashes, drops, earthquakes, bird strikes and more. The ability to simulate these events in software minimizes the time and expense that must be devoted to experimental testing.
Applications of LS-DYNA are numerous, from the simulation of automotive collisions to predicting stresses and deformations in metal forming processes to aerospace bird strike or hail damage on composites with meshless methods (SPH or DEM). Although its street creed is in extreme nonlinear, it is also at home running standard linear solutions for stress, normal modes analysis or advanced PSD fatigue analyses. It is truly an analysis code for all seasons and all terrains. Purchasing LS-DYNA can be as simple as start-up personal license or leasing LS-DYNA on a month-to-month basis. We would welcome the opportunity to work with you on buying LS-DYNA or simply taking it for a test drive. Please feel free to contact us to get started on taking advantage of the world's most powerful and inexpensive complete analysis code.
DYNAstart Professional - Start-up License Offer
Unlimited LS-DYNA versions available for all common platforms
1 license LS-DYNA for 1-year lease (unlimited functionality, no limitations), SMP- or MPP-version
Full technical support by phone or email for 12 months
New software releases included during lease period
Includes LS-PrePost and LS-OPT
Only available to new customers
More info on LS-DYNA
LS-DYNA is optimized for shared and distributed memory Unix, Linux, and Windows based, platforms, and it is fully QA'd by LSTC. The code's origins lie in highly nonlinear, transient dynamic finite element analysis using explicit time integration.
"Nonlinear" means at least one (and sometimes all) of the following complications:
Changing boundary conditions (such as contact between parts that changes over time)
Large deformations (for example the crumpling of sheet metal parts)
Nonlinear materials that do not exhibit ideally elastic behavior (for example thermoplastic polymers)
"Transient dynamic" means analyzing high speed, short duration events where inertial forces are important. Typical uses include:
Automotive crash (deformation of chassis, airbag inflation, seatbelt tensioning)
LS-DYNA's potential applications are numerous and can be tailored to many fields. In a given simulation, any of LS-DYNA's many features can be combined to model a wide range of physical events. An example of a simulation, which involves a unique combination of features, is the NASA JPL Mars Pathfinder landing simulation which simulated the space probe's use of airbags to aid in its landing. LS-DYNA is one of the most flexible finite element analysis software packages available
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LS-DYNA consists of a single executable file and is entirely command line driven. Therefore all that is required to run LS-DYNA is a command shell, the executable, an input file, and enough free disk space to run the calculation. All input files are in simple ASCII format and thus can be prepared using any text editor. Input files can also be prepared with the instant aid of a graphical preprocessor.
There are many third party software products available for preprocessing LS-DYNA input files. LSTC also develops its own preprocessor, LS-PrePost, which is freely distributed and runs without a license. Licensees of LS-DYNA automatically have access to all of the program's capabilities, from simple linear static mechanical analysis up to advanced thermal and flow solving methods. Furthermore, they have full use of LS-OPT, a standalone design optimization and probabilistic analysis package with an interface to LS-DYNA.
A presentation made by Predictive Engineering on the ease of use of Femap and LS-DYNA
Beams (standard, trusses, discrete, cables, and welds) (with over 10 beam element formulations)
Discrete Elements (springs and dampers)
Shells (3, 4, 6, and 8-node including 3D shells, membranes, 2D plane stress, plane strain, and axisymmetric solids) (with over 25 shell element formulations)
Solids (4 and 10-node tetrahedrons, 6-node pentahedrons, and 8-node hexahedrons) (with over 20 solid element formulations)
Thick Shells (8-node)
LS-DYNA's contact algorithms include:
Flexible body contact
Flexible body to rigid body contact
Rigid body to rigid body contact
Can and shipping container design
Electronic component design
Plastics, mold and blow forming
Biomedical (heart valves)
LS-DYNA is well optimized on all platforms including multiprocessor platforms (see table below). Its accuracy has been proven through extensive correlation with experimental data and, of course, analytical solutions. LS-DYNA is an invaluable tool for capturing extreme nonlinear events where other solvers have failed.
LS-DYNA runs on leading PCs, Unix workstations, supercomputers and MPP (massive parallel processing) machines.
Computer resource requirements vary depending on problem size. Simulations with more than 100,000 elements have been run using 15 million words of memory and 100 Mbytes of disk space. On super-computers, the code is highly vectorized and takes advantage of multiple processors.
We also provide LS-DYNA consulting services. Please feel free to Contact us to discuss your project requiring nonlinear finite element analysis or multiplysics coupling between fluids, heat or magnetism