kaffy
Mechanical
- Jun 2, 2020
- 191
Good Morning fellow engineers,
I am working on a project where I have a fillet weld under eccentric loading as shown in attached file. Initially I was following
and doing my calculations based on that (calculate direct and secondary shear stress and then resultant) but then I came across certain similar example where the maximum generated shear stress(direct and secondary shear stress calculations are same, only the resultant is different) is different than one shown in roymech (book example also shown in attachment). I could probably do both and choose the worst case scenario but I would like to know how do you guys calculate the resultant shear stress.
(Ignoring LRFD or ASD at this point) I am supposed to compare the resultant shear stress with allowable shear stress as all the fillet weld fail in shear. Is that right?
Also I am confused between allowable shear stress of welds.
Is it 0.3*minimum tensile strength or is it 0.3*minimum yield strength?
Thank you
Kaffy
I am working on a project where I have a fillet weld under eccentric loading as shown in attached file. Initially I was following
and doing my calculations based on that (calculate direct and secondary shear stress and then resultant) but then I came across certain similar example where the maximum generated shear stress(direct and secondary shear stress calculations are same, only the resultant is different) is different than one shown in roymech (book example also shown in attachment). I could probably do both and choose the worst case scenario but I would like to know how do you guys calculate the resultant shear stress.
(Ignoring LRFD or ASD at this point) I am supposed to compare the resultant shear stress with allowable shear stress as all the fillet weld fail in shear. Is that right?
Also I am confused between allowable shear stress of welds.
Is it 0.3*minimum tensile strength or is it 0.3*minimum yield strength?
Thank you
Kaffy
