- #1

FEAnalyst

- 307

- 129

- TL;DR Summary
- How to calculate the stresses in a chain link?

Hi,

I am interested in the topic of hand calculations of chain link's strength. I am talking about a regular industrial chain with hanging weight. From what I've read, there are 3 potentially possible approaches:

- Lame's problem (circular cross-section has to be replaced with equivalent rectangular one) - I've even found a formula based on this approach in a Polish book but it gives me very low stresses when compared with FEA

- curved beam theory - not sure how to apply it to this particular case

- Hertz contact stress - as above plus I don't know if it can be used in this case

Which of these methods would you use ? Or maybe I have to combine two of them to get a full picture of the stress distribution (keep in mind that I'm mainly interested in the maximum stress).

Thanks in advance for your help.

I am interested in the topic of hand calculations of chain link's strength. I am talking about a regular industrial chain with hanging weight. From what I've read, there are 3 potentially possible approaches:

- Lame's problem (circular cross-section has to be replaced with equivalent rectangular one) - I've even found a formula based on this approach in a Polish book but it gives me very low stresses when compared with FEA

- curved beam theory - not sure how to apply it to this particular case

- Hertz contact stress - as above plus I don't know if it can be used in this case

Which of these methods would you use ? Or maybe I have to combine two of them to get a full picture of the stress distribution (keep in mind that I'm mainly interested in the maximum stress).

Thanks in advance for your help.