Question
Download Solution PDFIn case of welds using lap joints, the minimum lap should not be less than four times the thickness of the thinner part joined or t mm, whichever is more, where t (mm) is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
(i) For the size of the weld:
Minimum size of weld:
|
t (mm) |
0 - 10 |
11-20 |
21-32 |
32-50 |
|
Smin(mm) |
3 |
5 |
6 |
8 |
The minimum size of the weld is required to avoid stress concentration in welds.
Maximum size of weld:
Smax = t - 1.5 mm for pointed edge
\(= \frac{{3{\rm{t}}}}{4}\) for rounded edge
Where t is the thickness of the thicker member
The size of welded is limited to ensure uniform stress distribution.
(ii) Length of weld/lap of length
Lp min = 4t or 40 mm (as per WSM)
= 5t or 50 mm (as per LSM)
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