Question

The allowable shear stress of a weld is 30% of the nominal tensile strength of the weld metal. If the nominal tensile strength is 64,000 psi, what is the allowable shear stress?

Answer 1

Allowable shear stress: S

Nominal tensile strength: T

The allowable shear stress of a weld is 30% of the nominal tensile strength of the weld metal:

$\begin{gathered} S=0.3\cdot T \\ \end{gathered}$

Solve the equation for T:

$T=\frac{S}{0.3}$

Use the given value of S to find T:

$T=\frac{64000psi}{0.3}\approx213333.\bar{33}psi$

Then, the allowable shear stress is approximately 213,333.33 psi