311:" nuclear bomb for low altitude release (impact velocity of ~ 40 m/s). At the time, no 3D software was available for simulating impact, and 2D software was inadequate. Though the FUFO bomb was eventually canceled, development of DYNA3D continued. DYNA3D used explicit time integration to study nonlinear dynamic problems, with the original applications being mostly stress analysis of structures undergoing various types of impacts. The program was initially very simple largely due to the lack of adequate computational resources at the time. A two-dimensional version of the same software was developed concurrently. In 1978 the DYNA3D
335:. Improvements in 1982 further boosted the execution speed by about 10 percent. Hallquist was the sole developer of DYNA3D until 1984, when he was joined by Dr. David J. Benson. In 1986, many capabilities were added. The added features included beams, shells, rigid bodies, single surface contact, interface friction, discrete springs and dampers, optional hourglass treatments, optional exact volume integration, and
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One of LS-DYNA's applications is sheetmetal forming. LS-DYNA accurately predicts the stresses and deformations experienced by the 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
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LS-DYNA's potential applications are numerous and can be tailored to many fields. LS-DYNA is not limited to any particular type of simulation. In a given simulation, any of LS-DYNA's many features can be combined to model a wide variety of physical events. An example of a simulation that involves a
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supercomputers. This new release contained improved sliding interface treatment which was an order of magnitude faster than the previous contact treatment. This version also eliminated structural and higher order solid elements of the first version, while including element-wise integration of the
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containing simulation software. Hallquist had consulted for nearly 60 companies and organizations on the use of DYNA3D. As a result, at the end of 1988 Livermore
Software Technology Corporation (LSTC) was founded to continue the development of DYNA3D in a much more focused manner, resulting in
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LS-DYNA is used by the automotive industry to analyze vehicle designs. LS-DYNA accurately predicts a car's behavior in a collision and the effects of the collision upon the car's occupants. With LS-DYNA, automotive companies and their suppliers can test car designs without having to tool or
490:, 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 LSTC's
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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
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LS-DYNA is used in oil and gas industries to perform fatigue analysis on offshore structures, failure analysis of ships under the event of collision, and simulate fluid structure interactions. LS-DYNA applications for oil and gas industry include:
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LS-DYNA3D (later shortened to LS-DYNA). Releases and support for DYNA3D were thus halted. Since then, LSTC has greatly expanded the capabilities of LS-DYNA in an attempt to create a universal tool for most simulation needs.
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The 1982 release included nine additional material models which allowed for new simulations, such as explosive-structure and soil-structure interactions. The release also permitted the analysis of structural response due to
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in 2019. While the package continues to contain more and more possibilities for the calculation of many complex, real world problems, its origins and core-competency lie in highly nonlinear transient dynamic
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is an advanced general-purpose multiphysics simulation software package developed by the former
Livermore Software Technology Corporation (LSTC), which was acquired by
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484:. There are many third-party software products available for preprocessing LS-DYNA input files. LSTC also develops its own preprocessor,
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simulation and composite analysis capabilities were added to DYNA3D in 1987. This version included changes to the shell elements, and
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operating system compatibility. At this point, DYNA3D became the first code to have a general single surface contact algorithm.
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software, a standalone design optimization and probabilistic analysis package with an interface to LS-DYNA.
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landing which simulated the space probe's use of airbags to aid in its landing.
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Papers from
European and International LS-DYNA User Conferences
1269:"LS-DYNA | DFETECH | Dyna Forming Engineering & Technology"
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experimentally test a prototype, thus saving time and expense.
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Shells (3, 4, 6, and 8-node including 3D shells, membranes, 2D
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impacting a rigid wall at 120 kilometres per hour (75 mph)
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259:(FEA) using explicit time integration. LS-DYNA is used by the
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Civil engineering (offshore platforms, pavement design)
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LS-DYNA is used by the aerospace industry to simulate
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LS-DYNA's comprehensive library of material models:
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1075:"LS-DYNA | Livermore Software Technology Corp"
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46:. Unsourced material may be challenged and removed.
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319:without restrictions after a request from France.
134:showing the results of an LS-DYNA simulation of a
776:solids) (with over 25 shell element formulations)
399:Large deformations (for example the crumpling of
912:Metal forming applications for LS-DYNA include:
847:Automotive crashworthiness & occupant safety
705:Some of the element types available in LS-DYNA:
406:Nonlinear materials that do not exhibit ideally
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1242:"LS-DYNA | Livermore Software Technology Corp"
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327:integral difference method developed in 1974.
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1189:"A comparison of DYNA3D, NIKE3D and LS-DYNA"
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944:Aerospace applications for LS-DYNA include:
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855:LS-DYNA's specialized automotive features:
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951:Bird strike (windshield, and engine blade)
476:format and thus can be prepared using any
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1191:. Oregon State University. Archived from
1164:"LS-DYNA Keyword User's Manual, Volume 1"
106:Learn how and when to remove this message
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565:FEM-rigid multi-body dynamics coupling (
368:By 1988 LLNL had sent approximately 600
303:, developed by Dr. John O. Hallquist at
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970:(underwater Naval mine, shaped charges)
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505:unique combination of features is the
305:Lawrence Livermore National Laboratory
1310:Training and Class Notes for Download
1305:Examples and Class Notes for Download
1102:. University Of California, San Diego
428:are important. Typical uses include:
7:
1021:Other LS-DYNA applications include:
44:adding citations to reliable sources
816:Flexible body to rigid body contact
551:ALE (Arbitrary Lagrangian-Eulerian)
14:
1654:Finite element software for Linux
1028:Can and shipping container design
959:Military and defense applications
554:FSI (Fluid-Structure Interaction)
518:LS-DYNA's analysis capabilities:
432:Automotive crash (deformation of
1037:Plastics, mold, and blow forming
819:Rigid body to rigid body contact
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933:Aerospace industry applications
904:Sheetmetal forming with LS-DYNA
607:Smoothed particle hydrodynamics
295:LS-DYNA originated from the 3D
31:needs additional citations for
809:LS-DYNA's contact algorithms:
376:In 2019, LSTC was acquired by
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522:Full 2D & 3D capabilities
1366:Advanced Simulation Library
1031:Electronic component design
599:Structural-thermal coupling
458:Manufacturing (sheet metal
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200:Computer-aided engineering
1040:Biomedical (heart valves)
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1097:"The History of LS-DYNA"
996:Jacket Platform Analysis
531:Quasi-static simulations
1649:Finite element software
1431:Open Cascade Technology
893:Hybrid III dummy models
614:Discrete element method
447:Explosions (underwater
333:penetrating projectiles
257:finite element analysis
204:Finite Element Analysis
1047:Earthquake engineering
973:Projectile Penetration
779:Solids (4 and 10-node
696:User-defined materials
596:Multi-physics coupling
410:behavior (for example
315:was released into the
223:Public domain software
1125:"Ansys Acquires LSTC"
1095:Dr. David J. Benson.
928:Multi-stage processes
813:Flexible body contact
800:Thick Shells (8-node)
621:Element Free Galerkin
548:Eulerian capabilities
1517:FEATool Multiphysics
1315:Download for Windows
1295:LSTC Company Website
1221:LS-DYNA Applications
987:Oil and gas industry
822:Edge-to-edge contact
557:Navier-Stokes fluids
40:improve this article
1597:Simcenter STAR-CCM+
1502:COMSOL Multiphysics
1492:Autodesk Simulation
982:Shockwave modelling
715:Discrete Elements (
626:Radiation transport
593:Implicit springback
528:Rigid body dynamics
394:boundary conditions
219:commercial software
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1017:Other applications
805:Contact Algorithms
602:Adaptive remeshing
525:Nonlinear dynamics
363:dynamic relaxation
149:LSTC (Ansys, Inc.)
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1195:on April 15, 2012
948:Blade containment
584:Crack propagation
273:civil engineering
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29:This article
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1376:Code Saturne
1276:. Retrieved
1272:
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1246:www.lstc.com
1245:
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1225:, retrieved
1220:
1197:. Retrieved
1193:the original
1182:
1171:. Retrieved
1129:. Retrieved
1127:. Ansys, Inc
1123:Ansys-LSTC.
1104:. Retrieved
1069:
1025:Drop testing
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936:
925:Deep drawing
919:Hydroforming
911:
907:
854:
850:
842:Applications
831:CAD surfaces
808:
785:pentahedrons
781:tetrahedrons
774:axisymmetric
770:plane strain
766:plane stress
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535:Normal modes
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38:Please help
33:verification
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1611:Cloud-based
1567:Midas Civil
1460:Proprietary
1359:Open-source
1227:February 2,
939:bird strike
834:Rigid walls
789:hexahedrons
478:text editor
440:inflation,
401:sheet metal
313:source code
216:Proprietary
1643:Categories
1602:SolidWorks
1592:Siemens NX
1278:2021-01-09
1251:2021-01-09
1199:2014-01-15
1173:2009-03-25
1131:2020-06-11
1106:2009-03-25
1062:References
1005:Ice Impact
968:Explosions
874:Retractors
865:Slip rings
837:Draw beads
756:Retractors
749:Seat Belts
677:Honeycombs
672:Elastomers
587:Real-time
487:LS-PrePost
378:Ansys, Inc
261:automobile
132:LS-PrePost
96:April 2018
66:newspapers
1557:MSC_Adams
1401:FreeFem++
1008:Wave and
860:Seatbelts
783:, 6-node
759:Sliprings
589:acoustics
392:Changing
265:aerospace
136:Geo Metro
55:"LS-DYNA"
1618:SimScale
1577:PTC Creo
1562:MSC_Marc
1537:JCMsuite
1436:OpenFOAM
1426:Nektar++
1411:GetFEM++
1371:Calculix
1353:software
1002:Analysis
1000:Sloshing
976:Rail Gun
797:Elements
728:Inertias
682:Concrete
652:Plastics
460:stamping
442:seatbelt
423:inertial
415:polymers
299:program
277:military
1628:Onshape
1623:CONSELF
1572:Nastran
1552:LS-DYNA
1421:Nek5000
1381:deal.II
1010:Tsunami
922:Forging
888:Airbags
878:Sensors
744:Sensors
732:Lumped
726:Lumped
721:Dampers
717:Springs
691:Viscous
667:Fabrics
434:chassis
408:elastic
291:History
248:LS-DYNA
230:Website
211:License
119:LS-DYNA
80:scholar
1527:Fluent
1482:Altair
1472:Actran
1467:Abaqus
1446:Salome
1441:QBlade
1406:Gerris
1396:FEniCS
1218:LSTC,
1162:LSTC.
1012:Impact
909:time.
772:, and
734:Masses
693:fluids
684:&
647:Metals
567:MADYMO
493:LS-OPT
462:, ...)
455:, ...)
438:airbag
426:forces
403:parts)
324:CRAY-1
301:DYNA3D
283:, and
237:.ansys
235:lsdyna
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1587:Sesam
1532:FORAN
1522:Femap
1512:DIANA
1497:CATIA
1487:Ansys
1477:ADINA
1416:MOOSE
1391:FEBio
1386:Elmer
1167:(PDF)
1100:(PDF)
710:Beams
686:soils
662:Foams
657:Glass
619:EFG (
612:DEM (
605:SPH (
571:Cal3D
474:ASCII
449:mines
370:tapes
252:Ansys
184:Linux
87:JSTOR
73:books
1582:RFEM
1547:KIVA
1542:JMAG
1229:2017
719:and
629:EM (
507:NASA
349:UNIX
271:and
239:.com
195:Type
188:Unix
59:news
1451:SU2
1351:CAE
795:SPH
510:JPL
353:COS
345:IBM
341:VMS
337:VAX
297:FEA
42:by
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