LS-DYNA for Structural Mechanics/FEA

LS-DYNA For Structural Mechanics and FEA

  • 0% EMI Option Available
  • Pre-requisites : For Mechanical, Aerospace or Automotive Engineers
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A Quick Overview

This course focuses on structural analysis using the solver LS-DYNA. Through the course curriculum, you will glean a better understanding of the solver and this will enable you to simulate any given structural problem both in implicit and explicit environments. You will also learn about section definitions, how to build a material card, understand how contact algorithms work, and its types along with their significance. Moreover,  you will learn concepts like mass scaling and timestep,  implicit scheme and how to set up the implicit problem, and finally you learn the basics of crashworthiness analysis. 
In addition to this, you will also learn the broad guidelines for setting up simulations. If you are someone who is interested in strength of materials, structural mechanics, and aspiring to become a CAE engineer, then this is the course for you.


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COURSE SYLLABUS

1FEA Basics and Simulations

In this module, you learn the basics of FEA, various types of simulations along with their significance, and also develop a mathematical understanding of the implicit and explicit schemes.


The topics that will be covered in this module are, 


  • Introduction to FEA 
  • Type of FE Simulation 
  • Explicit and Implicit mathematical definition

2LS-PREPOST Deep Dive

In this module, you will learn about the LS-PREPOST, the LS-DYNA user manual. You will also be learning about the file handling in LS-PREPOST, an overview of various cards, and finally running  a Tensile-Test simulation.


These are the topics that are covered in this module,


  • Brief about the Pre-Process
  • Hands-on training on the LS-DYNA User Manual
  • Running an example 
  • Post-Processing the results 
  • Input and output files in LS-DYNA
  • Keywords and input text editing 
  • Multiple RUN on the same file in the same folder
  • Hands-on the out files (ASCII output) in the text editor
  • Exploring binary and ASCII options in database keyword
  • Node keyword – Brief 
  • Part keyword – Brief
  • Materials
  • Section
  • Control cards – default parameters
  • Contact
  • LS-PREPOST
  • Building the solver deck for a simulation (Plate Model)
  • Post-Processing the results
  • Modeling of  a cube under pressure
  • Modeling the cube under pressure
  • Modeling the tensile stress of a specimen

3Keywords, Timestep and more

In this module, you will learn a few new keywords in detail, you will learn about the hourglass energy, material keywords in LS-DYNA, methods for calculating Young’s Modulus, basics of Timestep concept, and various control keywords.


These are the topics that are covered in this module,


  • Brief on keywords
  • Brief on INCLUDE keyword
  • Insight of NHTSA 
  • Hourglass energy
  • Materials introduction 
  • Elasto-plastic material and various cards
  • Material testing
  • Calculation method for Young’s Modulus
  • Power law
  • Verification 
  • Deploy
  • Timestep basics
  • Control card
  • Control timestep 
  • Control termination 
  • Control shell 
  • Control solid 
  • Control hourglass
  • Control energy 
  • Control contact 
  • Control accuracy 
  • Boundary condition 
  • Constrain
  • Specifying output files
  • Understanding contacts  
  • Various types of contacts 

4LS-PREPOST GUI and Weld Modelling

In this module, you will learn in-depth about the LS-PREPOST GUI, you will be introduced to Weld modelling in LS-DYNA and methods to model the Spot Welds and debugging, how to model a cross-section and its application.

The following topics are covered in this module,


  • LS-PREPOST GUI
  • LS-DYNA GUI application
  • Node and element selection
  • Application crash, metal forming 
  • Element direction align 
  • Post-processing 
  • Node intrusion depending on the regulation
  • Introduction to Spot-Weld in LS-DYNA 
  • Hands-on practice on Spot-Welds 
  • Solving a simple problem to learn the Spot-Welds and then Post-Processing it.
  • Modelling Spot-Weld using Spot-Weld constraint card.
  • Modelling Spot-Weld using Spot-Weld generalize constrain card
  • Debugging Spot-Weld
  • Spot-Welds modelling using solid elements
  • Introduction to Cross-Section 
  • Modelling a Cross-Section 
  • Application of Cross-Section 

5Implicit Simulations

In this module, you will learn about the implicit problem and how to set up an implicit simulation, you will also learn about the memory allocation in LS-DYNA, you will learn the concept of convergence in implicit, various keywords used in an implicit simulation, you understand about MORTAR contact and defining the loading in implicit simulations. 


These are the topics that you will learn in this module, 


  • Introduction to implicit problems
  • Implicit and explicit comparison 
  • Memory in LS-DYNA
  • In core / out-of-core 
  • Double precision and MPP
  • Tensile test - simple implicit problem
  • Timestep in implicit problems 
  • Convergence in implicit 
  • Implicit keywords 
  • Implicit and explicit switching 
  • Timestep adjusting 
  • Control-implicit-solver (Non-linear solver)
  • Implicit problem, hands-on with a bumper demonstration 
  • Power law plasticity 
  • MORTAR contact
  • MORTAR contact theory 
  • SOFT card - intro 
  • Implicit loading 
  • Element formulation for implicit analysis

In this project, you will hands-on experience in using the *INCLUDE, *INCLUDE_TRANSFORM,*DEFINE_TRANSFORMATION and understand how to model a pedestrian head impact simulation and calculate the HIC value. 


  • Overview of the pedestrian impact simulation
  • Understanding the HIC value 
  • HIC calculation - LS-PRE-POST
  • Understanding *INCLUDE, *INCLUDE_TRANSFORM,*DEFINE_TRANSFORMATION 

6LS-DYNA Best Practices & Types of Analyses

In this module, you will learn about the best practices in LS-DYNA that are particularly relevant for CAE simulation engineers in the industry, you will also understand the concept of mass scaling in-depth, and the difference between verification and validation.


The topics that will be covered in this module are as follows, 


  • Best Practices in LS-DYNA
  • Setting up the model 
  • How to decide the type of analyses (static, quasi-static, dynamic) 
  • Dealing with the coupled problem 
  • Deciding the ELFORM for the problem
  • Solving the model - types of error and their Fix
  • MASS scaling 
  • Post-Processing - Introduction (verification and validation) 
  • Post-Processing a typical explicit model 

7Material Modelling using LS-DYNA

This module mainly deals with material modelling using LS-DYNA. You will understand how to model a material card from the raw data from the material testing lab. You will understand in-depth about material modelling techniques and will also learn how to model a hyperelastic material in LS-DYNA. You will also learn about the contact mechanics and the various contact types in LS-DYNA.


The topics covered in this module are, 


  • Material introduction 
  • Material testing 
  • modelling materials 
  • Elastic-plastic materials 
  • Material modelling from the raw data
  • Hands-on hyperelastic material ( Mat-law 77 )
  • Contact mechanics
  • Types of contacts
  • Full contact parameters
  • Contact parameter - SOFT 
  • Segment projection 
  • Initial penetration 
  • Tied contacts 
  • Contact output 

8Crash and Safety

This module focuses on the crash and safety domain where you will be introduced to the industry trends in crash and safety.

And the topics you will learn are, 


  • Vehicle crash safety 
  • Crash mechanics
  • Design for crash 
  • Vehicle development process
  • Knowledge of simulation engineer 
  • Regulation and NCAPS 
  • Score calculation 
  • Model preparation static vs crashworthiness 
  • General guideline for crash model preparation 
  • Meshing and mesh quality 
  • Model organization and integration 
  • Parameterization
  • Forming data  



Projects Overview

Head Impact

Highlights

You learn how a pedestrian head impact simulation is setup by following industry standards. You will work on calculating the HIC value of the given head-foam in LS-PREPOST.

 

Bird Strike

Highlights

You will set up the cases in the industry discipline and organize the files accordingly. You will be setting up the case from scratch and running the simulation by documenting the error and the code in each run and finally building an error-free model.


Download syllabus

Our courses have been designed by industry experts to help students achieve their dream careers

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WHO IS THIS COURSE FOR ?


  • Students who have completed their 3rd year in Mmechanical, Automotive or Aerospace Engineering
  • Freshers who have passed out of college recently and looking to upskill or seeking opportunities as a CAE Engineer
  • Professionals who have worked on any Pre-Processor and want a career shift from a Modeller to a CAE Analyst/Engineer

SOFTWARE COVERED

LS-DYNA

LS-DYNA is an advanced general-purpose multiphysics simulation software package developed by the Livermore Software Technology Corporation.

LS-Pre­Post

LS-Pre­Post is an ad­vanced pre and post-proces­sor that is de­liv­ered free with LS-DY­NA. LS-Pre­Post runs on Win­dows, Lin­ux, and Macs uti­liz­ing OpenGL graph­ics to achieve fast ren­der­ing and XY plot­ting.


Flexible Course Fees

Choose the plan that’s right for you

Basic

2 Months Access

7000

Per month for 3 months

  • Access Duration : 2 months
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Email Support : Available
  • Forum Support : Available
Premium

Lifetime Access

15000

Per month for 3 months

  • Access Duration : Lifetime
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Individual Video Support : 12/month
  • Group Video Support : 12/month
  • Email Support : Available
  • Forum Support : Available
  • Telephone Support : Available
  • Dedicated Support Engineer : Available

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Certification

  • Top 5% of the class will get a merit certificate
  • Course completion certificates will be provided to all students
  • Build a professional portfolio
  • Automatically link your technical projects
  • E-verified profile that can be shared on LinkedIn

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Frequently Asked Questions

1Who are the instructors and what is the learning process?

Our instructors are industry experts working in Fortune 500 companies. We partner with them to deliver the lectures online. You will be given access to recorded content and assignments each week.

2Are there any prerequisites for this course?

You should be pursuing or have graduated with a B.E/B.Tech in Mechanical or Automotive Engineering.

3What kind of support I can expect? What if I have doubts?

Our support system is amazing!. You can read our reviews on Google to see this. We focus on one-on-one support which no one else does. We will communicate with you through videoconferencing, WhatsApp messages/calls, individual online sessions and also in person. Doubts and queries are addressed by a dedicated support engineer who is assigned to you to walk you through your problem areas and clarify any queries that you may have.


4How is this different from what I learnt in college?

Our courses are crafted after consultation with industry experts. This gives you the opportunity to apply what you have learned only as theory and work on projects that will give you a leg up in your career aspirations - be it an MS admit, a new job or growth within your organization. This course will help you bridge the gap between academia and industry and get you market-ready.

5What advantages will I gain by taking this course?

You will have an edge over your peers by working extensively on industry-relevant projects, practice on tools and software that will set you apart and help you in getting ahead of the competition. Our course will strengthen your portfolio to get better grants and scholarship opportunities for MS Admits, explore options in Research & Development, and land that much-coveted job in top core companies. 


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