304 S.S. bolt shear
304 S.S. bolt shear
(OP)
Where can I find a Chart showing shear values for 304 s.s. hex head bolts both at the thread and on the flats?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: 304 S.S. bolt shear
First, the proportional limit in shear (all elastic deformation, no plastic deformation) has been shown to have a ratio of 0.557 to the proportional limit in tension (National Bureau of Standards testing for MIL-HDBK-5). Therefore, if you want to use yield as the criteria, take the tensile yield strength requirement and multiply by 0.557 in order to obtain the appropriate value in shear.
On the other hand, if you want to obtain ultimate values in shear instead of yield values, then the ratio should be ~ 0.62 of the tensile ultimate strength. This is the ratio used in ASTM A 394. Failure theories predict a value of around 0.67, so 0.62 is somewhat conservative.
FYI, stainless steel bolts can be ordered in a number of conditions, which results in different strength levels for a given chemical composition (such as Type 304). Typical ASTM designations include the following:
AF - headed & rolled from annealed wire/rod, then re-annealed
CW - headed & rolled from annealed wire/rod, with no subsequent thermal treatment
A - machined from annealed wire/rod
SH - machined from cold-worked or strain-hardened wire/rod
RE: 304 S.S. bolt shear
RE: 304 S.S. bolt shear
Now would some one out there please explane KSI. Thanks DD3
RE: 304 S.S. bolt shear
Old school but still young enough to learn!
RE: 304 S.S. bolt shear
RE: 304 S.S. bolt shear
GA
RE: 304 S.S. bolt shear
Fv=0.17 Fu when threads are in shear plane
Fv=0.22 Fu when threads are excluded from shear plane
8th ed Table 1 D
RE: 304 S.S. bolt shear
RE: 304 S.S. bolt shear
Your values show a shear connection to have ~ 20% of the strength of a tensile connection, but your earlier statement says a 20% reduction, which I assume means Fv = 0.8 Fu. Can you explain this contradiction?
RE: 304 S.S. bolt shear
borrowing from TVP post (0.577)
Fv=0.577*Fu*0.80