Elasto-plastic material modelling and validation using LS-DYNA

In this project, you will learn how to validate the elasto-plastic material model with the given stress-strain data. You will learn the extraction and cleaning of the stress-strain data point from the given curve. Then you will study how to evaluate the hardening curve and give material parameters input to the LS-DYNA software. Finally, you will understand how to extract the stress-strain results from the simulation and compare it with the given data.

  • Duration : 1 Month
  • Domain : MECHANICAL/AUTOMOTIVE/MATERIAL SCIENCE/METAL FORMING
  • Benefits : In this project, you will learn how to validate the elasto-plastic material model with the given stress-strain data. You will learn the extraction and cleaning of the stress-strain data point from the given curve. Then you will study how to evaluate the hardening curve and give material parameters input to the LS-DYNA software. Finally, you will understand how to extract the stress-strain results from the simulation and compare it with the given data.
  • Price : 30000
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What will you do in this project?

You will be performing a tensile test on a dogbone specimen to validate the elasto-plastic material model.

  •  Extract and clean the stress-strain data from the given experimental curve.
  •  Evaluate the hardening curve from the extracted stress-strain data.
  •  Set-up the tensile test case study by applying required boundary conditions in LS-PrePost.
  •  Extract and analyse the stress-strain results in the post-processing phase
  •  Compare and validate the stress-strain curve

  • Understand how to extract stress-strain data using data digitizer
  • Grasp how to evaluate and input the material hardening curve in LS-PrePost
  • Define boundary conditions and run the simulation
  • Extract the results and validate your model with the experimental data

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Project Highlights

The project is an advanced level project
  •         This project is beneficial to B.E./M.Tech/M.S students from mechanical, metallurgy and material science background
  •         Helpful for working professionals in understanding material modelling in FEA software

Pre-requisites
  •         Basic knowledge of finite element analysis
  •         Basic knowledge of structural mechanics
  •         Good knowledge of LS-DYNA and LS-PrePost
Work with Multiple Tools
  •         Preprocessing and postprocessing in LS-PrePost
  •         Stress-strain data extraction and cleaning using data digitizer
  •         Simulating the tensile test in  LS-DYNA software
  •         Plotting results in MATLAB/Excel and writing report in MS-Word or Google-Doc


Elasto-plastic material modeling and validation using LS-DYNA

In this project, you will simulate a tensile test on a given dogbone specimen to validate the elasto-plastic material model in LS-DYNA. The experimental stress-strain curve is used to extract the data points and further cleaned to avoid noisy data. You will evaluate the hardening curve from the extracted stress-strain curve and learn how to give that as an input in LS-DYNA. Understand conversions from engineering stress-strain curve to true stress-strain curve and effective stress/effective plastic strain. Understand how to give all boundary conditions for a tensile test and set up an error-free input file for the solver. Finally, run the simulation using this input file using the launch manager. Post-processing would be carried out in LS-PrePost and simulated results would be compared to validate the material model.

 

  • Evaluating all the input data from the experimental results
  • Set up the tensile test case by defining boundary conditions and material properties
  • Perform post-processing in Ls-PrePost and compare graphs in MATLAB/excel
  • Compare the simulated results with the experiment and validate the material model

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1How is this project going to help me?

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2Can I add this project in my resume?

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3What are the pre-requisites for this project?

  • A few premium projects might require a prior understanding of fundamental concepts
  • In such a case, you will be given access to appropriate learning materials to first learn those concepts before jumping to the project


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