Meeting Agenda/Goals:

• Improve task tracker to reflect goals/progress of project

• Outline major/minimum goals of this project

• Separate goals into individual tasks/assignments/projects

• Assign each person to 1 testing plan and look to recruit new people for remaining tasks

• Word of Caution/Remember to:

  • Break down testing plans on testing plan tracker to include both remote and onsite work that is necessary for full completion of the testing

  • Create a section on testing plan tracker for the test apparatus

    • design, supplier interfacing, machining, etc.

    • blocks actual testing

  • Take note of what testing are available; don’t want to overcomplicate

    • the ultimate goal is to carry out a “dry run” prototype manufacturing on the joints that will be manufactured onto the real car and then get numerical test results on its performance

• To do list:

  • Need to reach out to interiors in detail about what joints they have to be tested

  • Be mindful of the Material Testing 101 session on May 29

    • This workshop will explain to new members and the rest of the team about the role of the material testing project. It is essentially a quality assurance (QA) resource for the team. We can be responsible for performing the research and testing involved with uncertain or inconsistent design elements such as composites and adhesives.

      This workshop will also outline the goals of the material testing project for this term and how members can help out.

      Note to Self: would be good to provide fleshed out examples of testing plans.

• Testing Plan Tracker:

  • Material Testing Tracker

• Action Items:

  • Tommy needs to contact Interiors about design projects for composite fastening joints

  • Maciek (composites) and Nikita (adhesives) will work on generalized testing plans

    • Meeting to be scheduled 1 week from now (around May 14, 2021)

      • Goal is to either: provide feedback or modify/delay timelines

      • Ideal: provide feedback

      • Next Goal: incorporate feedback and finalize testing procedures within 1 week

        • schedule meeting (around May 21, 2021)

Meeting Agenda:

• Decide on what tests will be conducted for the common composite panel and adhesive testing

1. Composites panel - Maciek

2. Doors, B Bulkhead - Nikita

3. Adhesive testing procedures - General Discussion + Decision

Design Goals:

• Minimize number of testing overall

  • stick to less test standards

• Minimize complexity

• Minimize procedures, steps, variation

Design Constraints:

• At the end, our goal is to compare with manufacture specification, so we need test data that can be compared with technical data sheet (TDS) values

• It is okay as long as we have some type of procedure in place to get SOME kind of evidence

Test Plan Requirements:

• how many test specimens

• test specimen geometry

• test procedures specifics

1. Composite Panel Test

   1. 3-point bend test

   2. tensile test

   3. compression test

      1. Mark Griffet can’t do this (no explanation)

      2. we don’t want to design/manufacture one and don’t want to buy one since it is a specialized attachment to the machine

2. Adhesive Testing

   1. Single lap shear test

      1. it is very possible! has been done by Tommy before

   2. Impact test

      1. Mark doesn’t have equipment; can’t use the lab

      2. Not feasible to conduct in-house in the bay without investing too much time or money to get the correct specialized equipment and setup.

   3. Peel test

      1. Mark doesn’t have equipment; can’t use the lab

      2. Not feasible to do it in-house

      3. Won’t provide any useful information because we can’t compose the test specimens using carbon fiber or steel

Action Items:

1. Create test plans for May 20th

   1. Can have potential stage of review and feedback/improvements

2. People will move onto test reports and FEA after done test plans (for remote side!)

Material Testing_2021.05.20

Meeting Agenda:

1. Introduction

2. Review test plans

   1. Need to account for resin infusion test specimen samples

   2. Things to watch out for:

      1. Test specimen geometry/specifications

      2. Test specimen quantity

      3. Fully detailed load configuration setup (reference ASTM standards)

3. Material Testing Timeline + Things to Do

   1. Remote tasks while waiting for lockdown to lift

   2. Design Projects

   3. Simulation Work

4. Design of Experiments

   1. @ Ishan would share his experience with design of experiments and statistical analysis. 

      1. We would discuss if it is feasible to implement these professional approaches into our project while considering timeline and resource of members

5. Decide on time for Material Testing Onboarding, May 29th afternoon

   1. Aimed to train current and new members

   2. Give overview of the material testing project

   3. Highlight skills that you would need to use

      1. Give training and advice of each skill

   4. Q&A

2. Material Testing Timeline

General Material Testing Timeline

• **Design of Experiment exploration

• Simulation setup and procedures need further research

  • ACP-Post related

  • Need contact with Professor Montesano

Design Project-related testing would follow the same timeline milestone goals as shown above. But with more delayed due dates.

• Seats testing plans

  • Hopefully mostly owned by Mech Co-ops

  • Would figure out better after June 2nd

3. Design of Experiments

Test batches

• Mini tab

• Repeatability

  • Could be just minimum 2

  • More randomized tests you have, the more accuracy and validity of your factor claims

• Test batches

  • Measure features

  • Put it into mini tab

  • Look into software → understand the source as to why there isn’t enough accuracy in the parts. 

  • We just need to know the factors that might be the source of the errors

• **unsure of its applicability towards adhesives and its factors

• Could be useful for future cars

• Unsure of how it would be useful as testing

• Design of experiment is looking for repeatability and accuracy

  • E.g. if you were trying to study why the geometry of your test specimen was not accurate

    • You input factors of your test specimen and understand why it’s happening

• Design of experiment is based on part randomization

• Quantity of test specimens

  • Composites ~100

  • Adhesive bonds ~50

• Factors of each part

  • Composites

    • 
      
      

  • Adhesive

    • 
      
      

• Might be worth creating an experiment in minitab

• JMP is more powerful than minitab 

• Question: For accuracy (the aim) be measured in terms of material properties, e.g. yield strength, shear strength

  •  .

• Factors?

  • Mistakes of factory workers, temperature, mistakes of the machine

  • The software just looks at the data

4.Action Items

• Maciek and Nikita finish up test plans for next week

  • Tommy will review it offline and give written feedback

• Review confluence pages: Material Testing Project - Mechanical - Confluence (atlassian.net)

  • Only high level and wait to be given a task (around June 2nd)

Meeting Goals:

• Try to define responsibilities and system for us to work in

• Try to focus on member development and independence alongside lead supervision

•  

Meeting Agenda:

• Workflow Ideology

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• DOE Experiment