Bearing stress in a single shear lug loaded by moment and force
Bearing stress in a single shear lug loaded by moment and force
(OP)
Dear all,
This is my first post and I would like to say hello to everybody
I m an aeronautical engineer working at the moment in a spacecraft project and I have the following question:
I m not able to find any reference to justify the bearing stress in case of a single shear lug loaded through a pin by a shear load (with an offset) and a pure bending moment.
Thank you a lot for your help
Best regards
joy
This is my first post and I would like to say hello to everybody
I m an aeronautical engineer working at the moment in a spacecraft project and I have the following question:
I m not able to find any reference to justify the bearing stress in case of a single shear lug loaded through a pin by a shear load (with an offset) and a pure bending moment.
Thank you a lot for your help
Best regards
joy





RE: Bearing stress in a single shear lug loaded by moment and force
the direct shear bearing is simple (either uniform or cos(theta)), right? for the moment i'd say the pin has a typical bending stress distribution, which for the bearing would be contact loads on opposite sides, varying linearly to the mid-thickness. so the moment becomes a set of forces, and make an equivalent set of bearing loads (ie like the shear load)
another day in paradise, or is paradise one day closer ?
RE: Bearing stress in a single shear lug loaded by moment and force
www.stressebook.com
Stressing Stresslessly!
RE: Bearing stress in a single shear lug loaded by moment and force
joy (OP) ... maybe a pic ?
another day in paradise, or is paradise one day closer ?
RE: Bearing stress in a single shear lug loaded by moment and force
RE: Bearing stress in a single shear lug loaded by moment and force
www.stressebook.com
Stressing Stresslessly!
RE: Bearing stress in a single shear lug loaded by moment and force
thank you a lot for your tips
the scenario it is like that depicted in the attached file.
the pin is cantilevered in the lug (out-of-plane of the lug, with the shear force parallel to the plane of the lug)
I used the method described in the HSB 26101-01 issue D year 1999, and I get a positive margin of safety but I m going to check also the "Stress Analysis Manual" by Maddux
have a nice week
joy
RE: Bearing stress in a single shear lug loaded by moment and force
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RE: Bearing stress in a single shear lug loaded by moment and force
but that is what i thought you were talking about. it should be a simple summation of bearing loads, a uniform one for the shear and two triangluar dist'ns for the beaning, yes?
another day in paradise, or is paradise one day closer ?
RE: Bearing stress in a single shear lug loaded by moment and force
RE: Bearing stress in a single shear lug loaded by moment and force
www.stressebook.com
Stressing Stresslessly!