- Capstone Project logbook (@2025-W31-D7 23:54) (todo!())
This Week
Summary
- 2D lap joint -> 3D lap joint (still isotropic adherends)
Monday
Meeting w supervisor.
Thursday
Creating a 3D lap joint model (currently with isotropic adherends). Got better at seeding the mesh edges. Initially the mesh was way too fine.
I later fixed this to have less elements.
Here it also shows where the adhesive has yielded. This is with an eccentric load downwards and to the left. Next step is to make the adherends composite materials.
What I learnt
- Don’t create a mesh with over a million elements.
- Modelling the 3D case is very similar it’s just that you extrude the original sketch
- You can easily seed the edges by setting the view to partially transparent and dragging, as opposed to trying to click them
- It’s really hard to set the correct force in an Abaqus/Explicit model without damage modelling because if it’s too much end exceeds the adhesives ultimate strength it wants to just extend forever.
Todo
- Composite adherends
- Discuss with team what the loading shape should be