Brackets, such as the one shown, are used in mooring small watercraft. Failure of such brackets is usually caused by bearing pressure of the mooring
(a) Identify the moment M that produces a shear stress on the throat resisting bending action with a €œtension€ at A and €œcompression€ at C.
(b) Find the force component Fy that produces a shear stress at the throat resisting a €œtension€ throughout the weld.
(c) Find the force component Fx that produces an in-line shear throughout the weld. (d) Find A, Iu , and I using Table 9€“2, in part.
(e) Find the shear stress τ1 at A due to Fy and M, the shear stress τ2 due to Fx , and combine to find τ .
(f) Find the factor of safety guarding against shear yielding in the weldment.
(g) Find the factor of safety guarding against a static failure in the parent metal at the weld.
(h) Find the factor of safety guarding against a fatigue failure in the weld metal using a Gerber failure criterion.
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Figure P926b is a freebody diagram of the bracket Forces and moments that act on the welds are equal but of opposite sense a b c M 12000366 439 lbf in ... View full answer
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Engineering Mechanics Statics
Authors: Russell C. Hibbeler
11 Edition
9780132215091, 132215004, 132215098, 978-0132215008
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