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Table of Contents

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  • Focused on lowering stresses for Top 30 wall case

  • Added a total of 12 longitudinal reinforcement tubes to try to add more resistance to bending during impact

    • all 1” square tubing

    • Testing the effects of a greater wall thickness (0.113”)

  • Note: there are currently interferences with floor panels, changes can be made to the reinforcement placement later

...

Stress Results

(not done yet, running into errors - some tubes were split into tiny segments?)

Max Combined Stress (MPa)

Scenario

REV 2.0/3.0?

("July 1_TommyRev.wbpj")

REV5.0

B-Pillar

351.49

to do

Side 60

648.65

to do

Top 30

1374.9

to do

Rev 5.1 - Longitudinal Tubes

I was able to implement the tube solution and fixed some contacts regarding the collision objects.

Max Combined Stress (MPa)

Scenario

REV 2.0/3.0?

("July 1_TommyRev.wbpj")Rev 0 (August 21, 2021)

2 passengers

REV5.1

2 passengers

B-Pillar

351.49

to do378

Side 60

648.65

to do

Top 30

1374.9

to do

627

Top 30 in project file

**Collision object used is actually Front 30

1374

1010

Red = 200 MPa or more

B-Pillar

...

Comments

Failing only at joints

Ideas for reinforcements

  • Add gussets at each of these joints

  • Sheet metal might be overkill if we are trying to fix these stresses

  • Tubes might not be the best way to reduce stresses at joints

Side 60

...

Comments

A lot of stresses on the top catamaran

A lot of stress at the front passengers floor

Ideas for reinforcements

  • Sheet metal over these tubes

  • More tubes at these areas. Basically a sheet metal wall, but made up of tubes

Top 30

...

This image shows that the stresses are lower when the sheet metal reinforcements are suppressed.

...

Comments

A lot of stresses on these longitudinal tubes

Adding the sheet metal reinforcement actually increases the stress

Ideas for reinforcements

  • More tubes in the longitudinal direction (front to back)

Note to self:

  • The back bar (collision object 11) is not compiling properly

    • contact is red and open