×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Shear stress and bearing stress, some quesrions?!?

Shear stress and bearing stress, some quesrions?!?

Shear stress and bearing stress, some quesrions?!?

(OP)
Hello, I'm a newbie to this site.. I am a design engineer involved with pipework and bellows design, I am designing a unit called a hinged unit, you may have heard you may not. but.. i have a question of stress! i have a pressure end load acting on the unit to restrain this I must use plates and pins (which also let the unit move laterally) I have worked out the shear stress on the pin, but a colleague of mine has informed me I must also design for the bearing stress, can someone give me an explantion of this as looking at the unit I can only see need to work out and design for the shear stress of the pin!? he has given me an equation sq root of end load in lbs divided by 115, I asked about this 115 and was told this is a constant used for bearing stress.  can anyone enlighten me more?? Thanks for listening!!!

RE: Shear stress and bearing stress, some quesrions?!?

Bearing stress results from the bolt or pin pushing against the side of the hole. It is from a force perpendicular to the pin or bolt.  Besides the force, hole size, material properties and thickness, the edge distance is important - how much metal is there between the edge of the hole and the end of the metal the hole is drilled in.  The number 115 sounds like a rule of thumb for some particular condition and not particularly useful in helping you understand.  The force divided by the bolt diameter divided by the material thickness would give you an approximate bearing stress.  You'd have to look up the allowable bearing stress from a design guide.  AISC for steel, AA for aluminum, NDS for wood etc.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources