Mô tả

******************* Course Structure  ***************************

Hello learners,

I welcome you all to this comprehensive course on LS-DYNA. Objective of this course is to get started from very basic understanding of FEA and gradually get you well versed with LS-DYNA. LS-DYNA is one of the most best and popular explicit code out there. LS-DYNA is used in almost all the industries that you can imagine. In this course though we will be taking examples of only structural analysis from automotive domain.


Skills you will gain at the end of the course :


  • You will learn different types of analysis and fundamental difference between them.

  • You will learn to setup a model in LS-PrePost, edit the model in Notepad++ and solving the model using LS-Dyna.

  • You will learn various aspect of material modelling in LS-Dyna.

  • You will get overall understanding of important concepts in explicit such as hourglassing, timestep and mass scaling.

Brief outline of the course is as following:

1. FEA/CAE basics and types of simulation

  •   Product life cycle management

  •   Branches of CAE

  •   Intuition of CAE

  •   Steps in CAE

  •   Types of analysis.

2. Introduction to LS-PrePost

  •   Deep dive into preprocessing using LS-PrePost.

  •   GUI of LS-PrePost.

  •   Handling a model using different approaches.

3. Keyword Arrangement in LS-Dyna

  •   Running a simple simulation

  •   File format and keyword structure in LS-Dyna.

  •   Keyword Arrangement : Nodes and Elements

  •   Keyword Arrangement : Parts, Section, Material

  •   LS-Dyna Manuals

  •   Example : Cube Under Pressure

  •   Keyword Arrangement : Database and Control

  •   Keyword Arrangement : Boundary and Constrained

4. Material Modelling for LS-Dyna

  •   Material Non-Linearity

  •   Conversion of Engineering Stress, Strain to True Stress, Strain

  •   Material : MAT024 PIECEWISE LINEAR PLASTICITY

  •   Example : Tensile Test with Non-Linear Material

5. Important Keyword

  •   *Include

  •   Example : Include File Structure

  •   Introduction to Hourglass

  •   Examples on  Hourglassing and control

  •   TimeStep

New topics and projects are coming soon

If you have any doubt fell free to contact me.

So Enroll now and start this exciting journey with me.

******************* Course Updates  ***************************

1. Added new video on types of analysis

2. Added new video on type dynamic analysis

3. Added new video titled "Spot Weld using Beam9 and MAT100" under "Modelling Techniques for LS-DYNA" section

4. Added new video titled "Implicit vs Explicit".

Bạn sẽ học được gì

Understanding difference between Implicit and Explicit Analysis.

Different types of analysis.

FE model building using LS-PrePost.

Contact and material modelling,

Spot weld modelling strategies for LS-Dyna,

Concept of hourglass and timestep,

Non-linear dynamic analysis,

Various projects with post-processing strategies.

Yêu cầu

  • No prior experience is required. Everything that is required to get going with LS-Dyna will be covered in this course.
  • LS-Dyna Solver

Nội dung khoá học

9 sections

Theory of CAE

14 lectures
Product Lifecycle Management
14:14
Degrees of Freedom
09:37
Methods to Solve Engineering Problem
07:26
Intuition of CAE Software's/Tools
08:46
CAE and it's Domains
10:21
Steps in FEA
06:28
FEA and Interpolation Function
05:15
Types of Numerical Methods
03:56
Types of Elements
06:01
Linear vs Non-Linear & Steady vs Transient
09:05
Types of Structural Analysis
10:54
Types of Dynamic Analysis
03:37
Implicit vs Explicit
06:59
LS-Dyna : Evolution and Applications
07:00

Introduction to LS-PrePost

10 lectures
Overview
08:06
Download and Installation of LS-PrePost and Notepad++
04:24
Interacting with Model : Part 1
14:15
Interacting With Model : Part 2
05:20
Graphical User Interface : Part 1
11:07
Graphical User Interface : Part 2
15:22
Graphical User Interface : Part 3
18:01
Section View/Cut
12:27
Assembly and Select Part (Hide and Show)
14:07
Selection of Entities
16:04

Keyword Arrangements

9 lectures
Running a Simple Simulation
27:12
Keyword File Structure
12:52
Standard and Long Format
05:51
Keyword Arrangement : Nodes and Elements
15:27
Keyword Arrangement : Parts, Section, Material
14:32
LS-Dyna Manuals
07:07
Example : Cube Under Pressure
24:50
Keyword Arrangement : Database and Control
14:22
Keyword Arrangement : Boundary and Constrained
19:27

Materials

6 lectures
Material Non-Linearity
09:14
Conversion of Engineering Stress, Strain to True Stress, Strain
09:42
Material : MAT024 PIECEWISE LINEAR PLASTICITY
11:49
Example : Tensile Test with Non-Linear Material PART 1
21:19
Example : Tensile Test with Non-Linear Material PART 2
12:47
*MAT_POWER_LAW_PLASTICITY
07:10

Important Keywords

5 lectures
Creating a Simple Include File
15:32
Example : Include File Structure
11:19
Introduction to Hourglass
07:44
Example : Hourglassing in Shell Element
17:28
Example : Hourglass Control
09:22

Timestep and Contacts

7 lectures
Theory of TimeStep : Part 1
06:37
Theory of TimeStep : Part 2
06:06
Introduction to Contacts-Part 1
07:08
Introduction to Contacts-Part 2
09:58
Introduction to Contacts - Part 3
08:31
Example: Automatic vs Non-automatic Contact
19:29
Example - Node to Surface Contact
11:23

Modelling Techniques for LS-DYNA

4 lectures
Spot Weld using Beam9 and MAT100
35:02
Failures in Spotwelds
08:03
Spot Weld using CONSTRAINED Option
14:36
Spotweld using Solid Element & Failure due to Plastic Strain
15:45

Implicit Analysis

10 lectures
Implicit Overview (Optional)
03:18
Implicit Example Workflow
07:39
Concept of Load Step
06:35
Memory Allocation in LS-Dyna
04:22
Important Keywords for Implicit : Part 1
10:12
Important Keywords for Implicit : Part 2
12:50
Important Keywords for Implicit : Part 3
09:24
Modal Analysis : Overview
04:17
Modal Analysis : Governing Equation
03:25
Example : Plate Modal Analysis
09:56

Deck Preparation in ANSA

4 lectures
Ansa Deck Preparation : Simple Plate Simulation
17:06
Ansa Deck Preparation : Cube Under Pressure
12:57
Ansa Deck Preparation : Tensile Test Specimen
13:15
Ansa Deck Preparation : Applying Hourglass Control
08:39

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