Introduction to Aircraft Structural Analysis (Elsevier Aerospace Engineering)

11.4 Connections 369

Fig.11.16

Force diagrams for rivets of Example 11.2.

givenby

r=( 202 + 252 )^1 /^2 =( 1025 )^1 /^2 =32.02mm

ThedistanceofD(andF)fromCis20mm.Therefore,

∑

r^2 = 2 × 400 + 4 × 1025 = 4900

FromEq.(11.6)theshearforcesonrivetsAandBduetothemomentare

S=

375

4900

×32.02=2.45kN

On rivet A, the force system due toPandPeis shown in Fig. 11.16(a), while that on B is shown in
Fig.11.16(b).
The resultant forces may then be calculated using the rules of vector addition or determined
graphicallyusingtheparallelogramofforces[Ref.1].
The design of riveted connections is carried out in the actual design of the rear fuselage of a
single-enginedtrainer/semiaerobaticaircraftintheAppendixofthe2005book.

11.4.5 Use of Adhesives

In addition to riveted connections, adhesives have been used and are still being used in aircraft con-
struction, although, generally, they are employed in areas of low stress since their application is still