Question

Two plates of 10 mm thickness each are connected by a fillet weld of 6 mm thickness as shown:


The design strength of weld if Fe410 grade of weld material is used will be____KN.

• A. 237

Answer 1

The correct option is A 237
Given,
$f_u=410MPa,{\gamma }_{mw}=1.25$

Effective length of weld
$l_w=60+2\left(120\right)=300mm$

$\text{Effective throat thickness,}{t}_t=kS$

$=0.7\times 6=4.2mm$

$\text{Design strength of weld}=l_w{t}_t\frac{f_u}{\sqrt{3}{\gamma }_{mw}}$

$=300\times 4.2\times \frac{410}{\sqrt{3}\times 1.25}\times {10}^{-3}kN$

$=238.61kN$