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Structural mechanics
Structural mechanics

110% Ansys LS-DYNA – Perform Explicit Analyses Efficiently

Includes current features and best practice tips

Overview

Training Advanced

In this training, you will deepen your knowledge and learn procedures & tricks for solving various simulation tasks with LS-DYNA in the Workbench. This training is offered as a 2-day course.

Duration
2 days

Prerequisites
Knowledge of Workbench LS-DYNA

Software used
Ansys LS-Dyna

Benefits
  • Benefit from our experience in support, training & consulting
  • Learn about the new features of Workbench LS-DYNA and how to use them
  • Understand and optimize LS-DYNA specific workflows
  • Practical tips for detailed post-processing

Description

This training focuses on the application of LS-DYNA within the Ansys Mechanical environment and the specific LS-DYNA tools provided. The topics deal with the handling of prestressed components, the efficient implementation of multiple load cases, specific meshing methods and procedures for post-processing of selected quantities. Using application-related examples, the various possibilities for using the LS-DYNA solver to solve transient processes are demonstrated. Moreover, possibilities for implicit calculations or modal analyses are described. In addition to the development and understanding of workflows for explicit analyses, you will receive numerous tips for their optimal use in everyday simulation.

This training is aimed at computational engineers who are familiar with Ansys Workbench, who have already gained initial experience with LS-DYNA and who want to learn about the extensive possibilities of using Workbench LS-DYNA to solve a wide range of structural dynamics tasks. 

Detailed agenda for this 2-day training

Day 1

01 Analyze multiple load cases with one simulation model

  • Classify load sequences: sequential or independent loads
  • Workshop: Consecutive drop tests
  • Workshop: Drop tests from various drop angles
  • Overview of restart methods

02 Methods for simulating prestressed components

  • Dynamic relaxation vs. transient prestressing
  • Mass and stiffness proportional damping
  • Multi-stage simulation with dynain file

03 Taking geometrically specified installation positions into account

  • Importing displacement fields into Workbench LS-DYNA
  • Initializing prestresses using final nodal displacements
  • Prestressing foams and polymers using reference geometry

04 Component meshing best practices for explicit analyses

  • Settings, criteria, and element formulations for tetrahedron meshing
  • Tips for meshing with hexahedra
  • Efficient meshing of shell geometries with Ansys Batch Connections
  • Insider tip: Meshing with solid shells

Day 2

05 Useful tools in Workbench LS-DYNA

  • Parallelization with SMP and MPP
  • Job management with LS-Run
  • Binout Tracker: Tracking result variables with the Ansys Result Tracker
  • Import LS-DYNA calculation decks using External Model
  • Defining cards using the Keyword Managers

06 Advanced postprocessing with LS-PrePost and pyDPF

  • Arithmetic operations, curve manipulation, filtering of curves
  • Scripting of LS-PrePost
  • Exporting simulation results with pyAnsys and pyDPF
  • Creating images and animations with LS-PrePost
  • Outlook: High-quality rendering with EnSight

07 Implicit analyses for natural frequencies, prestresses, springback, etc.

  • Tips for implicit analysis with “explicit models”
  • Hardware requirements for implicit and explicit analyses
  • Workshop: Implicit springback with dynain file
  • Workshop: Model understanding from natural frequencies using the modal analysis

08 Outlook on further topics

  • Automation of boundary conditions using the Object Generator
  • Thermal-mechanical coupled analyses
  • Prestressing using thermal loads
  • Adaptive mesh refinement

Your Trainers

Peter Leichsenring
CAE Engineer, CADFEM Germany GmbH, Berlin
Dr. sc. ETH Manfred Maurer
Engineering Services, CADFEM (Suisse) AG, Aadorf
Bernard Feuillard
Engineering Services, CADFEM (Suisse) AG, Renens

Placement in the CADFEM Learning Pathway

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When will I receive the final confirmation for my training booking?

Straight after you sign up, an automatic confirmation of receipt will be sent to the email addresses you provided. Once you have successfully verified the data you provided, you will receive your personalized sign-up confirmation, containing further information on course fees, the billing address, etc., by email within two to three working days.  

As soon as the minimum number of attendees has been reached, you will receive a final training confirmation containing further information. If you have booked an on-site training, we recommend that you wait until you have received this final confirmation before booking your travel and accommodation.

If the minimum number of attendees is not reached, we reserve the right to cancel the training seven days before it is due to start at the latest. We are happy to inform you on changing your booking to an alternative date. Please note that we accept no liability for hotel or travel bookings that attendees have already made.

When is the sign-up deadline for a training?

Training places will generally be allocated based on the order in which attendees sign up. For this reason, we always recommend booking for your desired date as early as possible.

As long as a coures still has free places, it can be booked.

At what time do the training courses begin and end?

Usually the training courses start at 9:00 am and end at 5:00 pm of the respective local time. The actual course times will be stated in the booking confirmation. Please note that, depending on the training host, there may be a possible time shift between your and the provider's local time. Therefore all local times are provided with the valid time shift to Greenwich Mean Time (GMT). 

Head of Professional Development
Dr.-Ing. Marold Moosrainer