Jump to content
Mechanical Engineering

How do I calculate point load failure for various distances?

Recommended Posts

You might start by calculating the bending stress for the known case with the load at the middle. Unfortunately, all you know is that this stress is too much. The pipe might also fail with a 90 lb load, but you have no way to know. Consequently, you only know a value too high, but you need the maximum load that does not cause failure.

If somehow you come up with a max load that avoids failure, then you can define a failure maximum stress. Then you could calculate the bending stress for the load at an alternate position and compare that to the known max safe value.


Link to comment
Share on other sites

Many handbooks will provide the formulas for the moment at any point for one or two loads applied at any point(s). Knowing the moment M at any point, Stress = Mc/I. Set up a spreadsheet if you are searching for some sweet spot combination of max load vs location. I assume when 10 lb was added to the 90 the beam collapsed. Not knowing any more about the situation at hand I will stop here. If this a real world application vs a lab demonstration for a class there is much more to consider.Good luck.


Link to comment
Share on other sites

#JAG engineering LLC 

Sir , would you send me the the PDF version of the book you shared one of it's pages .

And I need an onshore oil and gas equipments ( pdf) , if you have ?, Cause I'm a mechanical engineering of oilfields .

This is my mail


Best regards 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Join Mechanical Engineering network

    Join us (login) to get full access : Please sign up to connect and participate.

    To download files...please login

  • Who's Online   0 Members, 0 Anonymous, 16 Guests (See full list)

  • Create New...