Sheet $(5)$ Problems on Welded Joints Design

PROBLEM $(1)$

The permissible shear stress for the weldment illustrated in figure below is $\backslash (\backslash$mathbf$\{100\}\backslash$mathbf$\{$~ M P a $.\}\backslash )$ Estimate the safe load $\backslash (\backslash$mathbf$\{$F$\}\backslash ),$ which can apply safely on that weldment throat. PROBLEM $(2)$

The attachment shown in the figure is made of $1018$ HR steel $\backslash (12\backslash$mathbf$\{$m m$\}\backslash )$ thick. The static force is $\backslash (100\backslash$mathbf$\{$k N$\}\backslash ).$ The member is $\backslash (\backslash$mathbf$\{75$ ~ m m$\}\backslash )$ wide. Specify the weldment $($give the pattern, electrode number, type of weld, length of weld, and leg size$).$ Problem $(3)$

The attachment shown below carries a static bending load of $\backslash (\backslash$mathbf$\{12\}\backslash$mathbf$\{$k N$\}\backslash ).$ The attachment length, $\backslash (\backslash$mathbf$\{$I$\}\_\{\backslash$mathbf$\{1\}\}=\backslash$mathbf$\{225\}\backslash$mathbf$\{$~ m m$\}\backslash ).$ Specify the welded joint specification $($type of weld, length of weld, and leg size$).$ PROBLEM $(4)$

Estimate the safe static load $\backslash (\backslash$mathbf$\{$F$\}\backslash )$ for the weldment shown in the figure below, if an E$6010$ electrode $(\backslash (\backslash$mathrm$\{$Sut$\}\_\{\backslash$mathrm$\{$ut$\}\}=\backslash$mathbf$\{420\}\backslash$mathbf$\{$~ M P a$\}\backslash ))$ is used. The steel members are $1015$ hot$-$rolled steel. Use conventional analysis and allowable shear strength $=0\mathrm{.}3$ Sut. Assume the thickness of the steel member $\backslash (=\backslash$mathbf$\{20\}\backslash$mathbf$\{$~ m m$\}\backslash ).$ PROBLEM $(5)$

Perform an adequacy assessment of the statically loaded welded cantilever carrying a load of $\backslash (\backslash$mathbf$\{2200\}\backslash$mathbf$\{$~ N$\}\backslash )$ depicted in figure below. The cantilever is made of AISI $1018$ HR steel and welded with a $\backslash (\backslash$mathbf$\{6$ m m$\}\backslash )$ fillet weld size, as shown in the figure. An E$6010$ electrode was used. Find the safety factor of the weldment joint.