B Compressive force of a shorter cylindrical bone vs a longer one

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The discussion centers on the comparative strength of shorter versus longer cylindrical bones under vertical compression, specifically focusing on femurs. It highlights that longer bones are more susceptible to buckling due to their geometry, while shorter bones are less likely to experience such failure. The conversation also touches on the importance of specimen preparation, including the diameter and length of the bones, and how these factors influence compressive strength. Additionally, the role of muscle forces in real-life scenarios is emphasized, as they affect how bones bear loads differently than in isolated tests. Overall, the complexities of bone structure and loading conditions are crucial for understanding fracture mechanics.
  • #61
Rev. Cheeseman said:
In order for global buckling to occur, the length-to-diameter ratio needs to be less than 6.
No. You have that backwards.
"In general, to avoid global buckling of galvanized and cold-formed
steel tubes in the structural applications, the L/D ratio needs to be < 6."

Rev. Cheeseman said:
I'm trying to find articles or studies that said the compressive force to break a whole femur is the same as breaking a midshaft only segment but still can't find it.
Probably because it is false.
 
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  • #62
Baluncore said:
No. You have that backwards.
"In general, to avoid global buckling of galvanized and cold-formed
steel tubes in the structural applications, the L/D ratio needs to be < 6."
Sorry for the mistake. Thank you for noticing. I was rushing when typing and sleepy

Baluncore said:
Probably because it is false.

Sorry, why is it false.
 
  • #63
Rev. Cheeseman said:
Sorry, why is it false.
You are cherry-picking with a search engine.
If it were true, you would expect to find a cherry.
 
  • #64
Baluncore said:
You are cherry-picking with a search engine.
If it were true, you would expect to find a cherry.
Is there a study where they demonstrated the compressive force of whole humeri?
 
  • #65
Rev. Cheeseman said:
Is there a study where they demonstrated the compressive force of whole humeri?
Probably yes.
But finding that research is your problem.
 
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