Civil Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 4)
4.
The weakest section of a diamond riveting, is the section which passes through
first row
second row
central raw
one rivet hole of end row.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
19 comments Page 1 of 2.

Neelam said:   1 decade ago
Weakest section in riveting at which maximum stress are developed and in a diamond riveting, it is first row.

Nabin Neupane said:   1 decade ago
Could you please tell me how is the diamond riveting?

Ram said:   1 decade ago
Section in first row is weakest because shear strength in first row is of only. 1 Rivet and in second row shear strength is of 2 rivets and further increasing.

John said:   1 decade ago
Anyone have link to explain this diamond rivet entering first row? Picture or video.

Akash said:   1 decade ago
Let Strength of each bolt = 100KN.

I. Critical state of 1st sec= (600/100) = 6.

--->600KN.

II. Critical state of 2nd sec = (600-100/100+100) = 2.5.

(since 100KN load is taken by 1st bolt, net load transferred to second section = 600-100).

III. Critical state of 3rd sec = (500-200/100+100+100) = 1.

Critical condition of a bolt = (load applied/strength of bolt.

Hence first section is critical section (6>2. 5>1).

Amitjot kamboj said:   9 years ago
All the explanations are not upto the mark.

Parth dodiya said:   9 years ago
There is border of the diamond rivet that mean it's the first row at that point maxi. Shear stress occurs, so it's the weakest point of the diamond rivet is the first row.

Sanjay said:   8 years ago
Can Anyone explain critical section for diamond riveting?

Roy said:   8 years ago
Option D is the correct answer.

AKV said:   7 years ago
Suppose there is 6 bolt.

1 in the first row, 2 in the second row and 3 in the last row.
For the first row, strength is due to the net sectional area and one rivet.

For second row strength is due to the net sectional area and 3 rivet 1 from the first row and 2 from other rows.

For third row, strength is due to the net sectional area and 6 rivet.

But net sectional area1> 2 >3.


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