Question
Download Solution PDFConsider two flat plates connected together by means of a single riveted lap joint and subjected to a tensile force. The tensile resistance of unriveted solid plate is 35 kN. If the shear resistance of the rivet, tensile resistance of the riveted plate, and crushing resistance of the plate per pitch length are given as 24.5 kN, 28 kN, and 31.5 kN respectively. The efficiency of this joint will be?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The efficiency of the riveted joint is defined as the ratio of the strength of the plate in an unpunched condition.
The strength of the riveted joint depends on the tearing strength, shearing strength, or crushing strength of the joint, the efficiency can be tearing efficiency, shearing efficiency, or crushing efficiency.
The efficiency of the riveted joint,
\(\eta = \frac{Lowest of P_s,\space P_i \space and \space P_c}{P}\)
Where Ps = Shearing resistance, Pt = Tearing resistance, Pc = Crushing resistance, P = Strength of plate.
Calculation:
Given:
Ps = 24.5 kN, Pt = 28 kN, Pc = 31.5 kN and P = 35 kN
Among these Ps is the Lowest therefore the efficiency of the riveted joint is given by:
\(\eta = \frac{P_s}{P} = \frac{24.5}{35} = 0.7\)
The efficiency of the riveted joint is 0.7 or 70 %.
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