Refine Gun Tube LS-DYNA Simulation and Report
Budget: $10 – $30 USD
Project Title: LS-DYNA Simulation & LaTeX Report – Gun Tube Pressure (FEA Student Project)
* Project Description
I already have an LS-DYNA simulation model of a gun tube (bouche à feu) that needs some final adjustments, reruns, and a short report in LaTeX.
All basic setup (geometry, materials, boundary conditions) is already done — I just need a freelancer to help complete the analysis and write a short technical report based on provided instructions (PDF/photos attached).
This is a student project (TP2 – Calcul bouche à feu), so the budget is limited.
I’m mainly looking for accurate, fast, and affordable help — perfect for LS-DYNA students, interns, or simulation engineers who want quick extra work.
* Tasks to Complete
Simulation updates in LS-DYNA
Change and rerun simulations with mesh sizes: 2 mm, 1 mm, 0.5 mm, 0.25 mm
Perform mesh influence study (compare computation time, internal energy, and relative error)
Check energy conservation (using GLSTAT and ASCII outputs)
Evaluate plastic strain and stress–strain curves for internal surface elements
Determine tube strength using both Von Mises and Saint-Venant criteria
Conduct parametric study by changing wall thickness (3 mm, 5 mm, 7 mm) with applied pressure up to 350 MPa
Post-processing
Extract plots using excel :
Internal energy vs. time
Stress–strain curve
Plastic strain curve
Maximum deformation vs. thickness
Provide plots in excel
Report writing (LaTeX)
Write a short report (5–10 pages) in LaTeX
Include: setup description, results, discussion, and conclusions
Provide both .tex and PDF files
* Technical Details
Software: LS-DYNA (explicit)
Material: Steel 4140 (MAT_003 – Plastic Kinematic)
Parameters:
ρ = 7.8334E-6 kg/mm³
E = 200 GPa, ν = 0.29
σᵧ = 0.9 GPa, ETAN = 0.5 GPa
Pressure: 300 MPa → 350 MPa (parametric)
Duration: 2 ms
Geometry: L = 100 mm, D = 12.7 mm, thickness = 5 mm
* Deliverables
LS-DYNA input decks (.k or .dyn) for all cases
Post-processing plots (.png/.csv)
LaTeX report (.tex + .pdf)
Short summary/explanation of results
* Budget
* Small student budget – please propose your best low fixed price.
This is ideal for engineering students, LS-DYNA learners, or freelancers looking to build portfolio work.
* Deadline
5–7 days max (earlier is even better)
*Skills Required
LS-DYNA / FEA Simulation
Mechanical or Structural Engineering
LaTeX report writing
LS-PrePost or data plotting (Python/Matlab optional)
* Project Description
I already have an LS-DYNA simulation model of a gun tube (bouche à feu) that needs some final adjustments, reruns, and a short report in LaTeX.
All basic setup (geometry, materials, boundary conditions) is already done — I just need a freelancer to help complete the analysis and write a short technical report based on provided instructions (PDF/photos attached).
This is a student project (TP2 – Calcul bouche à feu), so the budget is limited.
I’m mainly looking for accurate, fast, and affordable help — perfect for LS-DYNA students, interns, or simulation engineers who want quick extra work.
* Tasks to Complete
Simulation updates in LS-DYNA
Change and rerun simulations with mesh sizes: 2 mm, 1 mm, 0.5 mm, 0.25 mm
Perform mesh influence study (compare computation time, internal energy, and relative error)
Check energy conservation (using GLSTAT and ASCII outputs)
Evaluate plastic strain and stress–strain curves for internal surface elements
Determine tube strength using both Von Mises and Saint-Venant criteria
Conduct parametric study by changing wall thickness (3 mm, 5 mm, 7 mm) with applied pressure up to 350 MPa
Post-processing
Extract plots using excel :
Internal energy vs. time
Stress–strain curve
Plastic strain curve
Maximum deformation vs. thickness
Provide plots in excel
Report writing (LaTeX)
Write a short report (5–10 pages) in LaTeX
Include: setup description, results, discussion, and conclusions
Provide both .tex and PDF files
* Technical Details
Software: LS-DYNA (explicit)
Material: Steel 4140 (MAT_003 – Plastic Kinematic)
Parameters:
ρ = 7.8334E-6 kg/mm³
E = 200 GPa, ν = 0.29
σᵧ = 0.9 GPa, ETAN = 0.5 GPa
Pressure: 300 MPa → 350 MPa (parametric)
Duration: 2 ms
Geometry: L = 100 mm, D = 12.7 mm, thickness = 5 mm
* Deliverables
LS-DYNA input decks (.k or .dyn) for all cases
Post-processing plots (.png/.csv)
LaTeX report (.tex + .pdf)
Short summary/explanation of results
* Budget
* Small student budget – please propose your best low fixed price.
This is ideal for engineering students, LS-DYNA learners, or freelancers looking to build portfolio work.
* Deadline
5–7 days max (earlier is even better)
*Skills Required
LS-DYNA / FEA Simulation
Mechanical or Structural Engineering
LaTeX report writing
LS-PrePost or data plotting (Python/Matlab optional)