Considerations to Keep in Mind:

1. Keep track of weight

   1. Standard weight that dynamics designs using is 720 kg.

   2. Calculate weight of tubes before adding the new tubes. Then calculate weight of tubes after new tubes are added. Calculate percentage difference. <5% difference is likely not a large concern

2. Remember the complications in regards to welding.

   1. Should review and measure out chassis before finalizing tubes order

Chassis Before Any Modifications:

Open

ASC Regulations Requirements:

Open

Quick Overview of Vehicle Collision Loading Scenarios:

See Appendix F of ASC Regs 2021 for more details

First Reinforcement Attempt

12 new tubes

General Max Stresses:

4130 Chromoly - Yield Strength = 415 MPa

Issue #1: Front Section - Collisions from the side - A Pillar Image

A lot of stress in the front half floor area. Will likely add more tubes on the lowest floor level shown in pink.

This would help resolve:

• Side 30, Side 60, A Pillar

Issue #2: Mid Section - Collisions from the Side - B Pillar Image

A lot of stress on the B Pillar itself. Will likely add in B Bulkhead to reduce stress

This would help resolve:

• B Pillar

A lot of stress on lower floor back half section. Will likely need horizontal tubes

This would help resolve:

• C Pillar

Issue #3: Front Area - Front 30 Image

Issue #4: Top Long Round Tube Area - Top 60 Image

Second Reinforcement Attempt:

17 new tubes

B Bulkhead added

General Max Stresses