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Introduction to
Ansys LS-DYNA

Course Overview

This course cov­ers the ba­sic ca­pa­bil­i­ties of LS-DY­NA. De­tailed de­scrip­tions and re­quire­ments are giv­en for da­ta prepa­ra­tion with ex­am­ples. Pre- and post-pro­cess­ing us­ing LS-Pre­Post is al­so cov­ered. This course is rec­om­mend­ed for those who per­form non­lin­ear sta­t­ic and tran­sient sim­u­la­tions. At­ten­dees work­ing in near­ly all fields of en­gi­neer­ing will ben­e­fit. This course is a pre­req­ui­site for the ad­vanced cours­es cov­er­ing the multiphysics ca­pa­bil­i­ties which in­clude com­press­ible and in­com­press­ible flu­ids, the airbag par­ti­cle method, Ar­bi­trary Lagrangian­-Euler­ian (ALE) flu­ids, ther­mal, acoustics, vi­bro-acoustics, met­al form­ing, elec­tro­mag­net­ics, dis­crete el­e­ments, fail­ure, fre­quen­cy re­sponse method­ol­o­gy, and iso­ge­o­met­ric analy­sis.

Prerequisites

  • Basic knowledge of Finite Element Analysis and Engineering Concepts 

Target Audience

Students, Design Release Engineers, CAE Engineers

Teaching Method

Lectures and computer practical sessions to validate acquired knowledge.

Learning Path

Currently, no Learning Path available

Learning Outcome

Upon the completion of this course, you will be able to:

  • Understand the keyword structure of LS-DYNA
  • Understand key concepts of penalty and kinematic contacts
  • Have awareness of unit consistency while setting up your units for materials, element length and time
  • Distinguish between an acceptable "Normal Termination" and incorrect results

Available Dates

Date / Time Duration Event Type Location Language Course Cost Registration
August 9, 2021
13:00 - 15:00  EST (GMT-5)
8 Session
August 9-13, 16-18
Virtual Virtual - WebEx
English Subscription Only Register
November 8, 2021
13:00 - 15:00  EST (GMT-5)
8 Session
Nov 8-12; 15-17
Virtual Virtual - WebEx
English Subscription Only Register

Learning Options

Training materials for this course are available with a Ansys Learning Hub Subscription. If there is no active public schedule available, private training can be arranged. Please contact us.

Agenda

This is a 4-day classroom course covering both lectures and workshops. For virtual training, this course is covered over 8 x 2-hour sessions lectures only.

Virtual Classroom Session 1

  • Lecture 1: Introduction to LS-Dyna Explicit
  • Workshop: Keyword Editing workshop
  • Lecture 2: Keyword Input creation
  • Workshop: Ball impacting a place workshop

Virtual Classroom Session 2

  • Lecture 3: Introduction to Contact in LS-Dyna I
  • Workshop: Contact
  • Workshop: Tube Crush

Virtual Classroom Session 3

  • Lecture 4: Introduction to Contact in LS-Dyna II
  • Workshop: Rigid Walls
  • Lecture 5: Material models I
  • Workshop: Tensile test

Virtual Classroom Session 4

  • Lecture 5: Material models II
  • Workshop: Time step, Mass Scaling and Rigid Bodies
  • Lecture 6: Element types and Hourglass Control I

Virtual Classroom Session 5

  • Lecture 7: Element types and Hourglass Control II
  • Workshop: Element Formulations and Hourglass control
  • Lecture 8: Sensors and Rigid Bodies
  • Workshop: Sensor Control
  • Workshop: Joints and Rigid Bodies 

Virtual Classroom Session 6

  • Lecture 9: Spotwelds, Damping and Preload
  • Workshop: Spotwelds
  • Workshop: Bolt Preload
  • Lecture 10: Manufacturing Data, Include files
  • Workshop: Include Transform

Virtual Classroom Session 7

  • Lecture 11: Introduction to Implicit Analysis in LS-Dyna
  • Workshop: Normal modes
  • Lecture 12: Airbag Modeling
  • Workshop: Airbag Hybrid

Virtual Classroom Session 8

  • Lecture 13: Execution, Restarts and Output
  • Workshop: ASCII and Binary output
  • Lecture 14: Debugging Concepts, Guidelines, Decomposition
  • Workshop: Units

Day 1

  • Lecture 1: Introduction to LS-Dyna Explicit
  • Workshop: Keyword Editing workshop
  • Lecture 2: Keyword Input creation
  • Workshop: Ball impacting a place workshop
  • Lecture 3: Introduction to Contact in LS-Dyna I
  • Workshop: Contact
  • Workshop: Tube Crush

Day 2

  • Lecture 4: Introduction to Contact in LS-Dyna II
  • Workshop: Rigid Walls
  • Lecture 5: Material models I
  • Workshop: Tensile test
  • Lecture 5: Material models II
  • Workshop: Time step, Mass Scaling and Rigid Bodies
  • Lecture 6: Element types and Hourglass Control I

Day 3

  • Lecture 7: Element types and Hourglass Control II
  • Workshop: Element Formulations and Hourglass control
  • Lecture 8: Sensors and Rigid Bodies
  • Workshop: Sensor Control
  • Workshop: Joints and Rigid Bodies 
  • Lecture 9: Spotwelds, Damping and Preload
  • Workshop: Spotwelds
  • Workshop: Bolt Preload
  • Lecture 10: Manufacturing Data, Include files
  • Workshop: Include Transform

Day 4

  • Lecture 11: Introduction to Implicit Analysis in LS-Dyna
  • Workshop: Normal modes
  • Lecture 12: Airbag Modeling
  • Workshop: Airbag Hybrid
  • Lecture 13: Execution, Restarts and Output
  • Workshop: ASCII and Binary output
  • Lecture 14: Debugging Concepts, Guidelines, Decomposition
  • Workshop: Units
  • Course Outline
  • History
  • Finite Element Simulation
  • Sample LS-DYNA Conference Presentations
  • Sample Simulations
  • FE Analysis (pre-processors, solvers, post-processors)
  • Detailed Example
  • LS-DYNA Input Deck
  • Using LS-PrePost
  • Details of Post-Processing
  • Detailed Capabilities - Keyword Format
  • Material Nonlinearity
  • Running LS-DYNA
  • Execution and Output Files
  • ASCII
  • Binary
  • Output Control
  • FE Modeling Techniques
  • Engineering a FEA Model
  • Element Selection
  • Discrete (formulation of elastic and nonlinear elastic spring)
  • Beam
  • Shell (description of the various shell formulations)
  • Solid (description of the various solid formulations)
  • Thick Shells
  • Boundary and Initial Conditions, Symmetry
  • Modeling for Physical Phenomenon
  • Ad-Hoc Guidelines
  • How to tell if your results are correct
  • Er­ror, De­bug­ging, and Oth­er Use­ful In­for­ma­tion (d3hsp)
  • Time Integration
  • The Equations of Motion
  • Implicit
  • Explicit
  • Explicit Time Integration
  • Time Step Calculation
  • Selectively-Reduced Integration
  • Hourglass Phenomenon
  • Contact and Slide Surfaces
  • Friction
  • Damping
  • Restart
  • Quasi-Static Simulations
  • Why static analysis with explicit code
  • Mass Scaling