The schism be may be that the exoskeleton is not the final layer of the structure.
Elon at reveal:
Design differentiation:
"This is the fundamental design change where we move the mass to the outside. We created an exoskeleton. So normally, the way that a truck is designed you have a body on frame. You have a bed on frame. And the body and the bed don't do anything useful. They're carried like cargo like a sack of potatoes. "
Load path using the bed and cabin:
![Screenshot_20230717_071225_Firefox.jpg Screenshot_20230717_071225_Firefox.jpg](https://teslamotorsclub.com/tmc/data/attachments/943/943690-a2ef8468a6fb8f29de4c64c8856a4f3f.jpg)
Analogy:
"It was the way that aircraft used to be designed when they had biplanes basically. The key to creating an effective monoplane was a stressed skin design. You move the stress to the outside skin. "
Implementation:
"It allows you to do things that you can't do with a body on frame. So we're able to make the skin out of thick ultra hard stainless steel"
Yes, he used skin twice back to back, but I say it's in different contexts: "we're able" not "we made". With a ladder frame, what would happen to rigid planar sheet metal under chassis torque? Either it would be ripped loose (didn't yeild), oilcan (flex), or crease/ oilcan (yeild).
The rigid exoskeleton enables a rigid beauty surface. Additionally, If this were a normal monocoque, any dents/ creases could severely undermine the vehicle structure.
No ladder, no spine, no problem. Here is the exoskeleton:
![F0_7wGwaAAIMbZb.jpg F0_7wGwaAAIMbZb.jpg](https://teslamotorsclub.com/tmc/data/attachments/943/943688-e939def1099425bb81c3379492de2f76.jpg)
The doors can't be static load elements (questionable for dynamic also), so the majority of the central cabin structure was never based on the stainless outer skin.
![SmartSelect_20230716_101342_Firefox.jpg SmartSelect_20230716_101342_Firefox.jpg](https://teslamotorsclub.com/tmc/data/attachments/943/943689-983824d0dd2c0f77ea54699ba7109f3a.jpg)
Thanks for coming to my TED talk, follow me at
Investor Engineering Discussions
And let me know where you think the hitch attaches (rear subframe? )
Elon at reveal:
Design differentiation:
"This is the fundamental design change where we move the mass to the outside. We created an exoskeleton. So normally, the way that a truck is designed you have a body on frame. You have a bed on frame. And the body and the bed don't do anything useful. They're carried like cargo like a sack of potatoes. "
Load path using the bed and cabin:
![Screenshot_20230717_071225_Firefox.jpg Screenshot_20230717_071225_Firefox.jpg](https://teslamotorsclub.com/tmc/data/attachments/943/943690-a2ef8468a6fb8f29de4c64c8856a4f3f.jpg)
Analogy:
"It was the way that aircraft used to be designed when they had biplanes basically. The key to creating an effective monoplane was a stressed skin design. You move the stress to the outside skin. "
Implementation:
"It allows you to do things that you can't do with a body on frame. So we're able to make the skin out of thick ultra hard stainless steel"
Yes, he used skin twice back to back, but I say it's in different contexts: "we're able" not "we made". With a ladder frame, what would happen to rigid planar sheet metal under chassis torque? Either it would be ripped loose (didn't yeild), oilcan (flex), or crease/ oilcan (yeild).
The rigid exoskeleton enables a rigid beauty surface. Additionally, If this were a normal monocoque, any dents/ creases could severely undermine the vehicle structure.
No ladder, no spine, no problem. Here is the exoskeleton:
![F0_7wGwaAAIMbZb.jpg F0_7wGwaAAIMbZb.jpg](https://teslamotorsclub.com/tmc/data/attachments/943/943688-e939def1099425bb81c3379492de2f76.jpg)
The doors can't be static load elements (questionable for dynamic also), so the majority of the central cabin structure was never based on the stainless outer skin.
![SmartSelect_20230716_101342_Firefox.jpg SmartSelect_20230716_101342_Firefox.jpg](https://teslamotorsclub.com/tmc/data/attachments/943/943689-983824d0dd2c0f77ea54699ba7109f3a.jpg)
Thanks for coming to my TED talk, follow me at
Investor Engineering Discussions
And let me know where you think the hitch attaches (rear subframe? )