Master's in Design for Crashworthiness and Analysis

An 8 month intensive program which provides complete knowledge on safety regulations, designing and analyzing models, the mechanism behind a crash, and the skills required for a simulation engineer

  • Domain : MECHANICAL
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Program Timeline

In olden times, a motor vehicle was considered a luxury, But, the times have changed now. We could witness how drastically the numbers have increased. With the increase in vehicle numbers, the chances of accidents also increase. So, the makers must keep in mind the safety of the passengers and design vehicles which are crashworthy. The technical term coined for it is Crashworthiness. It is theoretically defined as the ability of a vehicle structure to protect the occupants. 

The safety standards of the vehicles are kept in mind. These reflect even before manufacturing the units.  The manufacturers start by designing the vehicles and using simulation, the crash tests are virtually conducted. This saves a lot of money and time. This reason has made the industry completely adapt to Crashworthiness analysis. The designers performing these simulations must have a full understanding of the vehicle design, factors responsible for accidents, the impact that is going to act on the passengers, and the safety standards that the market demands.

This program provides complete knowledge on safety regulation, designing and analyzing models, the mechanism behind a crash, and the skills required for a simulation engineer. This program offers several courses that individually deal with various topics that are mentioned above. These courses are accompanied by projects where you will get hands-on experience that will help you stand out from the crowd.

Skill Lync brings to you an intensive program of 8 months duration with the following courses:

  1. Basics of FEA - Explicit and Implicit FEA
  2. Automotive Safety Standards
  3. Design for Crash & Score Calculation
  4. Crashworthiness Analysis using Hypermesh/Radioss
  5. LS DYNA for Structural Mechanics
  6. Assess safety systems that may benefit wide range of special conditions in FEM
  7. Structural Crash Modelling using ANSA, LS DYNA & Metapost

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1. Basics of FEA - Explicit and Implicit FEA

1Introduction to FEA

  • What is FEA? and Why FEA?
  • Advantages and industrial applications of FEA
  • Different types of FEA analysis
  • Pre-requisites of FEA
  • Basics of Approximate and Exact solution methods
  • Basics of differential equation solutions and Newton Raphson method (finite difference method)
  • Basics of Petrov-Galerkian and Potential energy approaches

2Methods of FEA

  • Basics of Petrov-Galerkian and Potential energy approaches (contd.)
  • Meshing/Discretization
  • Types of Elements in FEA
  • Terminologies like Nodes, Elements etc.
  • Introduction to Stiffness matrix, Plane stress and Plane strain conditions

31D Element (Bar element)

  • Stiffness Matrix of 1D element
  • Nodal Displacements
  • Nodal DOF
  • Stress and Strain Calculations
  • Shape functions
  • Homogenization of Problems
  • Case study Problem

42D Element

  • Stiffness Matrix of 2D element
  • Nodal Displacements
  • Nodal DOF
  • Stress and Strain Calculations
  • Shape functions
  • Stiffness matrix of CST and LST elements

53D Element and FEA characteristics

  • Stiffness Matrix of 3D element
  • Nodal Displacements
  • Stress and Strain Calculations
  • Different non-linearities in FEA
  • Basic types of material models
  • Factors influencing Solution of FEA

6Basics of LS-DYNA

  • Introduction to LS-DYNA
  • Material Models
  • Meshing techniques
  • Solving Simple Static Problems

7Equations of Motion

  • Study of Basic Equations of Motions
  • Mass Matrix, Stiffness Matrix
  • Time dependance of Analysis
  • Physics of Crash
  • Study of Mathematics related to Crash

8Explicit and Implicit FEA

  • What are Explicit and Implicit analysis
  • Basic Applications
  • Advantages and disadvantages of methods
  • Difference between Explicit and implicit methods
  • Time steps, Hourglassing and Contacts Used
  • Mathematical approaches used by Explicit and Implicit analysis

9LS-DYNA

Case Studies:

  • Crush Analysis of Square/rectangular Tube Using LS-DYNA 
  • Impact of ball on Steel thin Plate

10Applications of Implicit and Explicit FEA

  • When to use Explicit FEA and When to use Implicit FEA?
  • Case Studies:
    • Hydroforming of Automotive Structures
    • Modelling of Shape memory alloys
    • Quasi-static Analysis of Structures


Some of the projects that you will work on


2. Automotive Safety Standards

1Introduction to vehicle crash and safety

  • Introduction
  • Active and passive safety 
  • Physics in crash and safety 
  • Evolution of safety in automobiles 
  • Importance of crash and safety in everyday automobile 
  • Occupant and Pedestrian safety 

2Active Safety Features

  • Introduction to Active safety  
  • Anti-lock Braking system 
  • Stability and Traction Control 
  • Brake assist & Emergency braking 
  • Collision avoidance
  • Autonomous cruise control 
  • Cameras (Image processing)
  • Car to Car connect 

3Passive safety Features (structure)

  • Introduction 
  • Crumple zones - Front
  • Crumple zones - Rear
  • B pillar structure and doors
  • Roof structure
  • Materials for passive safety
  • ICE vs Electric car structures  

4Passive safety Features (Occupant & Pedestrian)

  • Introduction
  • Seats and Seat belts 
  • Driver and Passenger Airbag
  • Head restraint 
  • ISOFIX child mount 
  • Door trims 
  • Occupant monitoring 
  • Pedestrian safety 

5Future of Crash and safety

  • Introduction 
  • Autonomous (driverless) vehicles 
  • Regulation changes 
  • Hyperloop 
  • Crash and safety in future mobility 

6Introduction to Dummies

  • Introduction and history of using dummies 
  • Anthropomorphic Test Devices (ATD)
  • Why crash test dummies? 
  • Male, Female and Child dummies 
  • Pedestrian dummies 
  • Development and manufacturing of dummies

7Occupant dummy Injuries

  • Introduction 
  • Frontal impact injuries (Hybrid III) 
  • Side impact injuries (SID)
  • Head injuries during crash 
  • Whiplash injury (rear impact)
  • Child injuries during crash 
  • Out Of Position (OOP)

8Pedestrian Injuries

  • Introduction 
  • Pedestrian leg impact 
  • Pedestrian Head impact
  • Pedestrian safety 


3. Design for Crash & Score Calculation

1Introduction to NCAP Regulations across the globe

  • Introduction to US-NCAP, EURO-NCAP, ASEAN-NCAP, J-NCAP,  GLOBAL-NCAP, IIHS, BNVSAP etc. 
  • Understanding ratings & types of test (frontal, offset, side, pole, roll over  etc). Adult & child protection
  • How different OEMs fair with various NCAP regulations across the world  with respect to different models. 
  • How IIHS contributes to the promotion of purchase of safer cars from the  market. 
  • A brief introduction of Active and Passive Safety and how it contributes  to the overall safety rating of a vehicle.

2Introduction to a car structure and materials

  • A brief introduction to different vehicle body types (hatch, sedan,  cabriolet, coupe etc). 
  • Introduction to vehicle platforms 
  • Introduction to various car body structural components and their  functions (A pillar, Front cross member, sill, B Billar etc).
  • Introduction to materials and how materials are used for structure design  & development (IS standards, J standard etc).
  • Advanced materials and technologies used in the industry to achieve  crash ratings (tailored weld blank, aluminums).
  • How do composites fair in crash structures.

3Design strategy for frontal crash and calculation of sections

  • FMVSS 208 
  • Benchmarking design strategy of other OEMs
  • Understanding Baseline model
  • Mass-energy-deflection equations and graphs.
  • Lumped mass spring model.
  • Crash energy management
  • Conservation of momentum and energy
  • Buckling load, section modulus, bending moment
  • Stiffness and strength
  • Collapse modes.

4Design of engine compartment for frontal impact

  • Strategy (Absorb, Distribute or transfer) 
  • Design of front crash cross member, engine mount long member & fire wall.

5Design of driver and passenger cockpit for frontal impact

  • Design of A pillar, Floor, Cross car beam, roof long member, B pillar, Front and rear door 
  • How seat, seat belt and airbag are controlled during frontal impact and their contribution.

6Design strategy for side, Pole crash, roll over protection

  • FMVSS 214, 216 
  • B Pillar, floor, door design strategy for side & pole crash protection. Rear Impact protection & whiplash effect 
  • Design for roof crash and roll over protection.

7Design strategy for pedestrian protection

  • FMVSS 216 
  • Design of Hood/bonnet, front fascia/bumper for pedestrian protection

8Design of EV for crashworthiness

  • EV structure architecture 
  • Hazards of battery pack- Electrocution & Short circuit fire
  • Design strategy of battery protection for impact
  • Design strategy for motor and other HV component for impact protection

9The future of crashworthiness of cars

  • The future of crashworthy vehicles: Stringent government rules, high speed crash, 20% offset, advanced material usage.


Some of the projects that you will work on


4. Crashworthiness Analysis using HyperMesh and Radioss

1Basics of Crashworthiness Physics, FEA Concepts and CAE Process

In the first module you will learn about different types of analysis, the difference between Implicit and Explicit analysis, different non-linearities and along with this, you will also bust the myth that a strong structure equates safe structure’ by teaching you about:

  • Meaning of crash safety for a vehicle

  • Law of conservation of energy applied to a car crash

  • Basic concepts of FEA such as linear-nonlinear, static-dynamic, Implicit- Explicit analysis, their differences and the guidelines on how to choose a method for a given FEA problem

2Introduction to HyperMesh

HyperMesh is one of the most popular Finite Element Preprocessor used to generate meshes of complex models. In this module, you will learn the GUI of HyperMesh, various elements available in FEA like 1D, 2D and 3D elements, how to choose the element depending on the geometry by covering topics such as:

  • Overview of Pre-Processors and their importance in FEA Processes

  • Primary introduction to GUI of HyperMesh, toolbars and basic operations

3Geometry Editing in HyperMesh

Learning to mesh geometries is an important step in performing FEA. Therefore, we will extensively cover the topic by which the students can understand, geometry clean up, tools available for geometry cleanups, 

  • Using an edited geometry to generate mid-surface and appropriate 2D mesh with regards to mesh flow, trias and mesh size, by various methods

  • Using the geometry tools to clean up the distorted geometry

4Meshing – 1D, 2D & 3D and Mesh Quality Check

In this section, you will learn what is 1D, 2D, and 3D meshing, what is mesh quality and how to improve them and then exporting the meshed model to the specific solver.

  • Using an edited geometry to generate mid-surface and appropriate 2D mesh with regards to mesh flow, trias and mesh size, by various methods

  • Using the geometry to create a 3D mesh using various methods

  • Meaning of mesh quality and ways to control and improve it

  • Types of 1D elements, their specifications, and creation

  • Exporting a meshed model from HyperMesh in the specified solver format

5Introduction to Radioss

In this section, you will learn what is an Explicit Solver, what is an engine file and a starter file and their significance and also what is an out file and how to read this out file.

  • Overview of Radioss- An Explicit FEA solver for crashworthiness

  • Essential Radioss input files, their significance, and format

  • Overview of output files and their significance

6Element Properties and Materials

In this section, you will learn about the various element formulations available for different types of elements in the Radioss and their applications, how to assign thickness for the component and also you will understand various parameters available in the property card and their significance. Similarly, you will also learn various material cards available in Radioss and their use cases along with their failure criteria.

  • Application of thickness and dimensional properties, integration points for 1D, 2D and 3D elements

  • Study and application of concepts such as material intrinsic properties, failure criteria, non-linearity, plasticity, and hyper-elasticity into a material model

7HyperCrash, HyperView and HyperGraph

In this section, you will learn a new application that is developed by Altair exclusively to set up the crash simulations and along with this, you will be learning the GUI of Hypercrash. You will also be introduced to Hyperview and HyperGraph where you will learn how to post-process the simulation results

  • Introduction to HyperCrash, a specialized pre-processor for Radioss

  • Introduction to HyperView and HyperGraph as post-processing tools in the FEA process

8Interface (Contact) Modelling

Interface modelling will be a complex topic that you can find in any solver. Here you will learn what is a contact and how it works, what are the different parameters you need to look into while defining a contact in a model, what are the different types of contacts and their use cases. 

  • Concepts of an interface between given components, penalty formulation method, contact stiffness, gap, penetration, interference, and tied interfaces

  • Creation of various types of interfaces and removing any errors or interferences

9Boundary Conditions Setup

In this section, you will understand how to set up a proper boundary condition for any given simulation, what are the different types of loading conditions and different types of joints available in Radioss

  • Setup of static and dynamic loading conditions such as velocity, acceleration, a constraint on degree of freedom, rigid walls, spot welds, and seam welds

10Simulation Control

In this section, you will learn about the concept of the time step and how it can be optimized to increase the speed of the simulation and also the concept of mass scaling. You will also understand the various control cards available in Radioss and their use cases.

  • Control of simulation in terms of the time step, accuracy, run time, types of outputs

11Checks and Debugs

In this section, you will the various check you to do before running the simulation and also you will understand how to debug a simulation along with its approach 

  • Checking and debugging any errors in the model using diagnostic methods

12Airbag and its Modelling in FEA

In this section, you will exclusively learn about the Physics of an airbag in crash scenarios and how to model them in Radioss. You will be learning about two types of Airbags ( with vent and without vent ) 

  • Concept of an airbag in FEA, its modelling methods and challenges with an example

13Occupant Injury Criteria

In this section, you will learn about how the injury criteria are calculated in the actual crash test environment and how it affects the rating of the vehicle. You will also learn about the dummy standards that are used in crash testing. 

  • Various occupant injury criteria currently being considered while determining the crashworthiness and safety performance of a car

14Crashworthiness Standards

In this section, you will learn about the standards followed in different ENCAPs 

  • Study of basic elements of most popular crashworthiness standards, the criteria used while determining the crashworthiness performance and ways to measure this in the FEA model


Projects Overview


5. LS-DYNA for Structural Mechanics/FEA

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


6. Assess Safety Systems that may Benefit Wide Range of Special Conditions in Finite Element Model

1Introduction to Road Safety

  • Introduction to Road traffic Safety.
  • Background and Motivation for study
  • Understanding Active and Passive Safety Systems
  • In depth review of existing Active Safety Systems and understanding HMI.
  • Components of Passive Safety
  • Crashworthiness
  • Occupant Safety
  • Biomechanics

2Understanding Accident Data

  • Introduction of Phenomena of Accident.
  • How Accident Data is collected.
  • Fatality rates across the globe.
  • Introduction to Safety Standards around the world Part 1
  • Introduction to Safety Standards around the world Part 2
  • Looking at the crash test videos
  • Reading the research papers Part 1
  • Reading the research Papers Part 2
  • Accident Reconstruction Overview

3Introduction of FE tools for Passive Safety

  • Dummy Hardware Part 1
  • Dummy Hardware Part 2
  • Review of Basic Hypermesh Functions Part 1
  • Review of Basic Hypermesh Functions Part 2
  • Review of Basic Ls-Dyna functions Part 1
  • Review of Basic Ls-Dyna Functions Part 2
  • Review of Basic Post processing in Ls-Dyna Part 1
  • Review of Basic Post Processing in Ls-Dyna Part 2

4Dummy FEA and tools

  • THOR dummy introduction
  • THOR Dummy tree using Primer Part 1
  • THOR Dummy tree using Primer Part 2
  • THOR Dummy positioning using Primer Part 1
  • THOR Dummy Positioning using Primer Part 2
  • Setting up Boundary conditions using test document
  • Debugging the Model using Primer Part 1
  • Debugging the Model using Primer Part 2

5Dummy Validation

  • Dummy Validation cases Part 1
  • Dummy Validation Cases Part 2
  • Dummy Positioning on a Seat and Gravity simulation
  • Seatbelt Routing using Primer Part 1
  • Seatbelt Routing using Primer Part 2
  • Understanding Sled Boundary Conditions
  • Understanding Contacts Part 1
  • Understanding Contacts Part 2

6Sled Analysis

  • Understanding Airbag Modeling Part 1
  • Understanding Airbag Modeling Part 2
  • Evaluating Sled test Data Part 1
  • Evaluating Sled Test Data Part 2
  • Dummy Signal Analysis Part 1
  • Dummy Signal Analysis Part 2
  • Preparing a report Part 1
  • Preparing a repot Part 2

7Child Safety

  • Introduction of need for child Safety
  • Child restraint Systems
  • Child Dummy Models
  • Evaluating Child Safety

8Pedestrian Safety

  • Introduction of Pedestrian Safety
  • Pedestrian Safety Systems
  • Pedestrian Dummy Models
  • Evaluating Pedestrian Safety

9Introduction of Biomechanics – Head to Toe

This will be a entire theory session that introduces

  • Anatomical aspects of Human Body
  • Injury tolerances
  • ASI scales
  • Injury Mechanisms
  • Injury Criteria
  • Application of these criteria

10Introduction of HBM

  • Introduction of Human Body Models
  • In Depth review of a Human Body Model
  • Comparison between Dummy and HBM FE Models
  • Positioning HBM (?)

11Human Body Model Validation

  • Cadaver vs. HBM
  • Evaluating HBM for Biofidelity
  • Material modeling for HBM
  • Validating HBM

12Video Analyses

  1. Why to do video analysis
  2. How to do it
  3. Few demo on the physlet tracker


Some of the projects that you will work on


7. Structural Crash Modelling using ANSA, LS DYNA & Metapost

1Introduction to structural simulation using LS-DYNA

  • Introduction to Structural Crash simulation Using LSDYNA
  • Introduction to Preprocessing, Solver and Post processing

2Key principles of LS-DYNA

  • Key principles of LSDYNA
    • Keyword format
    • Units in LSDYNA
    • File extension
      • Input, Output ( Binary & ASCII files)
    • Time integration
      • Implicit Vs Explicit
    • Element Formulation

3Preparing a structural model in ANSA

  • Preparing a structural model in ANSA
    • Geometry check
    • Sheetmetal meshing in ANSA
    • Batch meshing in ANSA
  • Element quality correction

4Property creation in LS Dyna

  • Property creation of each part
  • Material models and material assignment to each property
  • Hourglass modes

5Modeling Connections

  • Modeling Connections (Connecting BIW parts with different connection techniques)
    • Spotwelds/Rivets
    • Bolts and Mounts
    • Discrete beams
  • Springs and Dampers

6Constraints

  • Constraints ( different usage of rigid bodies with respect to part material)
    • Constrained Nodal rigid bodies
    • Constrained Rigid bodies
    • Constrained Extra nodes
    • Constrained Joints
  • Assembling the full vehicle model

7Contact creation

  • Contact creation
    • Contact surfaces
    • Terminology
    • Definition
    • Contact Depth
    • Contact stiffness

8Contact Problem Solving

  • Contact problem solving
  • Initial penetrations
  • Monitoring contact forces
  • Checking contact definitions
  • Recommended contact types & Settings

9Boundary conditions

  • Boundary conditions
    • Initial Velocity
    • Gravity
    • Rigid wall

10Control Data

  • Control Data
    • Control contact
    • Control energy
    • Control output
    • Control shell
    • Control termination
    • Control timestep
  • Output Request
    • Database History node
    • Database Binary D3plot
    • Database Extent Binary
    • Database  ASCII files
  • Accelerometers
  • Element seatbelt Accelerometer

11Model Checking

  • Model Checking
    • Standard preprocessing checks
      • Element & Mesh quality
    • Model geometry & Structure 
      • Intersections and penetrations
      • Time step drop and added mass
    • BCs,Initial Conditions and Interactions
      • Loadcase setup for full frontal crash analysis
    • Output defifnitions
  • Primer introduction for model checking

12Running LS DYNA and Post processing

  • Running LSDYNA jobs
    • Runtime of an analysis
    • Speedup via mass-scaling
    • Restarting the analysis
    • Debugging of errors
  • Postprocessing the results
    • Check global energy balance
    • Check contact forces and energies
    • Check individual part energies


Some of the projects that you will work on


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