Ansys LS-DYNA

Ansys LS-DYNA

One of the most flexible finite element analysis software packages

Ansys LS-DYNA

Ansys is a software suite of Ansys Inc.

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)

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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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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Modellazione e analisi del comportamento a crash di strutture in materiale composito in ambiente LS-Dyna

L'obiettivo del corso è fornire all'utente le basi per avviare un veloce percorso di apprendimento all' utilizzo del software.

ansys ls-dyna training

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Our competences in Ansys LS-DYNA

CASE STUDY

Improving the performance of shaped charges and passive ballistic protections

CAE models evaluated using two commercial solvers

In this technical article, the authors discuss the development of CAE models for simulating the behavior of shaped charges, devices used in various industrial sectors, against two types of target – a monolithic steel target and a multi-layer steel-ceramic target – in order to better understand the physics of penetration.

ansys ls-dyna civil-engineering mechanics oil-gas

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

CASE STUDY

Numerical simulation of protection systems on agricultural tractors to ensure standards compliancy

Virtual testing of roll-over protection and of falling-object protection in the early design phase ensures safety performance

This technical case study describes how the ROPS and FOPS of a tractor were numerically studied in the early design phase to ensure compliance with OECD Standard Code 4 (for the cabin’s resistance to longitudinal, lateral and vertical energy or force) and Code 10 (for overhead protection from falling objects).

automotive rail-transport ls-dyna

CASE STUDY

Integrated Simulation of Commercial Pasta Manufacturing

The Virtual Optimization PAsta production process (OPAV) research project, which resulted in a simulation model

This study was part of the Virtual Optimization PAsta production process (OPAV) research project,

modefrontier ansys ls-dyna magma optimization food-beverage consumer-goods

CASE STUDY

Calibration of the Johnson-Cook plasticity for high strain rate regime applications

Material models used in structural finite element analysis (FEA) are often one of the key aspects that engineers need to describe very accurately.

optimization modefrontier ls-dyna

CASE STUDY

Woodrail Road Barrier Impact Analysis

The Woodrail® road barrier is designed to improve vehicle safety blending in with the surrounding environment.

The barrier has been thoroughly tested and certified against car and bus impact conditions.

automotive ls-dyna

CASE STUDY

Finite Elements Investigations about the Warm Hydroforming Process of Aluminum Alloys using LS-DYNA

The tensile and formability tests in warm condition

The present work investigates the Warm Hydro Forming (WHF) process of an AA6xxx series alloy (AA6061-T6) using a numerical-experimental approach.

ls-dyna metal-process-simulation

CASE STUDY

Digitizing a process to standardize the analysis and evaluation of windshield wiper performance

TAE SUNG collaborates with DY Auto to develop dedicated software

This technical article describes a project that was undertaken by TAE SUNG Software and Engineering, in collaboration with DY AUTO in Korea, to establish a computerized process to conduct three-dimensional real-scale analysis of any of the three types of windshield wiper currently in use, and to establish a specific standard for evaluating wiper performance.

automotive ls-dyna ansys

CASE STUDY

Performance and Shape Optimization of the Campagnolo Tri-ProPad bike shorts pad

A new and revolutionary pad for bike shorts.

Sport equipment design is characterized by the fact that a fundamental part of a product success depends on the athlete’s feedback.

sports modefrontier ansys ls-dyna

CASE STUDY

Damage Estimation of Vehicle through Tsunami Simulation using Particleworks and LS-DYNA

MPS method in fluid computational dynamics offers possibilities for improving the design of vehicle safety

In this technical article, we demonstrate how to apply a one-way coupling technique using a combination of ParticleWorks and LS-DYNA to estimate tsunami damage to a vehicle.

automotive ls-dyna energy cfd particleworks environmental

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

CASE STUDY

Creating new services based on reconstruction of accident kinematics with FEM prototypes and a design thinking approach

This article combines the use of the finite element method with a Design Thinking approach to reconstruct a road traffic accident for an traffic accident insurance report in order to analyse the outcome of the accident, compare the respective property damage, and the physical injuries to pedestrians or passengers in order to limit the quantity of large claims compensation for the insurance company, while ensuring the fairness of the compensation for the customer to foster greater trust and credibility in the insurance provider.

automotive ls-dyna

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

CASE STUDY

A new methodology based on LS-DYNA for integrating product & process engineering of a steel wheel

Wheels are products with key geometrical and structural specifications.

A new methodology is presented, following an integrated process-product analysis approach, showing some benefits related to increased accuracy and the potential application of new optimization methods.

ls-dyna automotive composites

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