(Solved): A plate 80mm wide and 15mm thick is joined with another plate by a single transverse weld a ...

A plate $$80\mathrm{mm}$$ wide and $$15\mathrm{mm}$$ thick is joined with another plate by a single transverse weld and a double parallel weld. Determine the length of parallel fillet weld if the joint is subjected to both static and fatigue loading. Take ot $$=90\mathrm{MN}/{\mathrm{m}}^2,\mathrm{t}=55\mathrm{MN}{\mathrm{m}}^2$$ as the allowable stresses and stress concentration factors as 1.5 for transverse weld and 2.7 for parallel weld.