LS-DYNA

One of the most flexible finite element analysis software packages

LS-DYNA is a general-purpose finite element program capable of simulating complex real world problems. It is used by the automobile, aerospace, construction, military, manufacturing, and bioengineering industries. 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)
  • Explosions (underwater Naval mine, shaped charges)
  • Manufacturing (sheet metal stamping)

LS-DYNA is a product of Livermore Software Technology Corp. (LSTC)

LS-DYNA for Automotive Crash

LS-DYNA provides highly scalable solutions to transient problems.

LS-DYNA for Occupant

LS-DYNA provides an unmatched collection of materials (fabric, foam, human tissue, etc.) and components (seat belts,sensors, airbags, etc.) for occupant safety simulations.

Main Benefits

Any of LS-DYNA's many features can be combined to model a wide range of physical events

  Full 2D & 3D capabilities

  Nonlinear dynamics

  Rigid body dynamics

  Crack propagation

  Real-time acoustics

  Implicit springback

  Multi-physics and Structural-thermal coupling

 and many others


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Insights

CASE STUDY

A CAE based procedure to predict the low velocity impact response of a composite CAI specimen

The integrated procedure allowed to obtain a better understanding of the influence of some numerical parameters on the simulation results

The residual strength, in particular the compression strength after damage due to low velocity impact, is one of the most critical issue for composite laminates.

ls-dyna aerospace modefrontier composites

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Corsi a calendario LS-DYNA

Calendario 2020 | Corsi LS-DYNA

EnginSoft offre una gamma di corsi, differenziati per le tematiche trattate, in funzione del settore di applicazione del software. La finalità dei corsi è sempre di tipo pratico: condurre rapidamente all'utilizzo corretto del sistema, in coerenza sia con gli obiettivi assunti per il calcolo specifico, che con le caratteristiche delle formulazioni, degli algoritmi, e degli approcci formali disponibili.

training ls-dyna

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Our Expertise with LS-DYNA

CASE STUDY

LS-DYNA and modeFRONTIER for Material Model Calibration at Automobili Lamborghini

The main challenge is to reproduce their structural behavior by developing suitable numerical models

While the engineers relied on modeFRONTIER's capabilities, the procedure has been to calibrate the constitutive parameters of LS-DYNA's advanced material models, and to use them for prediction, design optimization and robustness analysis.

modefrontier ls-dyna automotive composites

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CASE STUDY

Aviospace: The Italian Aerospace & Defense Company

Using simulation for engineering challenges in unknown or poorly understood environments

Gambacciani began his career in development of diesel engines at FIAT-GM Powertrain (now FCA) where he gains a solid experience on CAE both in the fluid and structural environment.

aerospace ls-dyna

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CASE STUDY

FE modeling of a composite sandwich laminate with LS-DYNA for Aerospace applications

Laminated composite materials such as sandwich structures are widely used in the transportation industry

This project investigates how best to correctly predict the energy absorption of these non-isotropic and non-homogeneous materials, whose lamina thickness is typically of the order of 0.2 mm or less and consists of tiny fibers or particles dispersed in a matrix material.

ls-dyna aerospace composites

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