Conducted By

Tommy Tran

Date

2021-07-16

Folder Path

D:\Users\Roo\Documents\GrabCAD\MSXIV sims\MS-CHASSIS\Min Reinforcement Sims

File Name

July1_TommyRev.wbpj

ACP (Pre)

Engineering Data

• Material data seems ordinary

• 4130 Chromoly - Yield Strength - 435 MPa

• Structural Steel - Yield Strength - 250 MPa

Geometry

• Note: When Kimberly was working on collision setup, she found that the tube elements weren’t all properly connected

• Using the Prepare > Beams > Connect feature, it is shown that not all beam elements are connected properly. This may have been fixed when contacts were later applied under ACP (Pre) Model Setup, but efforts will be placed to correct these errors right now.

• After modifying the beam elements, number of gaps have greatly reduced

Model

• Contacts have been automatically generated for all bodies

  • Contacts are all bonded

  • This can cause error or inaccuracy because this results in contacts being formed between objects that are actually not in contact.

  • FIX: Create automatic connections with specific bodies in mind. Use manual contact regions if necessary.

    • E.g. A separate connection group for gussets, bulkheads

  • Note: I still feel some uncertainty regarding how to fully check that all the correct contacts have been made in a time efficient manner (as opposed to checking every single contact).

    • Soln: check every suspicious tube

    • Double Soln: Run the simulation and check if tubes deform weirdly. If they do, it’s probably because it has been unreasonably contacted.

• Mesh size: 15 mm

Setup

• This is the standard stackup for A, B, C bulkheads

• The fibres in the ModelingGroup.Ply are showing up correctly

B Pillar

509

445

Side 60

1231

1466

Top 30

1595

1830