Attendees

Chad, Mandy, Zoe, Andy and Kyle.

Shauna is away

Agenda

Andy will lead the meeting
Summaries on literature review have been edited and compiled together. We will upload later for feedback
Paint Baking Reference- GM response?

Shauna will post her progress summary on Wiki
- Adhesive Bonding Summary - Sept29

Mastered the Fourier's Second Law
Set up the preliminary model on Excel
- why delta t should be fixed?
- Parameters are found from the literature first, will eliminate as follows
  - Will define whether it is laminar or turbulent from the air inside the oven to find the range of heat transfer coefficient -> how to get Renald's number!!!!!
  - Will validate the thermal conductivity changing with temperature -> k(T) for each alloy
Single material plate (Al alloy only) -> Composite system (5xxx Al alloy, Epoxy, 6xxx Al alloy)

Found the mathematical model
Set up the preliminary model on Excel- Invalid output
Find constants and materials constants from literature
- See what materials constants and constants depend on

Found the mathematical model
Set up the preliminary model on Excel
- Trying to see if the results generated from the model are close to the results from literaturerking on the strong obstacle model

Put together a summary of each model including descriptions, assumptions and parameters..etc
Models?

Paint baking
- Find a reference journal to compare if they are similar
- Cannot reference the current journal
- Figure out if it is necessary to contact GM
CAFE
- Can use the official website but there should be a document that can be referenced
Materials in Automotive
- Book, google it. It is on Ebookee.com

2 parameters for it to work right now
- % cure- Check sensitivity
- Time steps- smaller steps, more precise
- Compare change in predicted model
See at which time step point point the results won't change

Be able to explain clearly on the MT how the model will work with the rest
For now, don't have to include adhesion part
Implicit time step- current using it.
Explicit time step- using time at current time step
Because Kyle and Andy have had a tutorial with Chad on Fourier's 2nd law- Write 1-2 page description to explain to the rest on how this works
- Basic equations
- Basic methodology
Test how many nodes you need and why it is your parameter
Do your results depend on dx, dt?
Sensitivity analysis
- Compare results for center node, plot time vs error and sum the error
- SIMPLER: Do simulation of current model using conditions and parameters of Newton's cooling and compare the results with the analytical Newton's cooling model
If the thickness were to change later, will the nodes change?
Temperature and compositional differnce of k- ASM handbook to find Al alloy
We can ignore temperature difference in thermal conductivity - from transport textbook table (It doesn't change much)
Find the k of al alloy 5754, 6111
Search air velocity inside oven to find Reynolds #
If it is necessary, we can run tests to measure h
How ar eyou going to add in the heat generation part???