1.55 In the structure shown, an 8-mm-diameter pin is used at A, and 12-mm-diameter pins are used at B and D. Knowing that the ulti- mate shearing stress is 100 MPa at all connections and that the ultimate normal stress is 250 MPa in each of the two links joining B and D, determine the allowable load P if an overall factor of safety of 3.0 is desired. Top view 200 mm 180 mm- 12 mm 8 mm- В В 20 mm +8 mm 8 mm - DO 12 mm Front view Side view Fig. P1.55

Elements Of Electromagnetics
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1.55 In the structure shown, an 8-mm-diameter pin is used at A, and
12-mm-diameter pins are used at B and D. Knowing that the ulti-
mate shearing stress is 100 MPa at all connections and that the
ultimate normal stress is 250 MPa in each of the two links joining
B and D, determine the allowable load P if an overall factor of
safety of 3.0 is desired.
Тоp view
200 mm +180 mm -
12 mm
8 mm
A
В
C
A
20 mm
P
8 mm
8 mm -
DO
12 mm -
Front view
Side view
Fig. P1.55
Transcribed Image Text:1.55 In the structure shown, an 8-mm-diameter pin is used at A, and 12-mm-diameter pins are used at B and D. Knowing that the ulti- mate shearing stress is 100 MPa at all connections and that the ultimate normal stress is 250 MPa in each of the two links joining B and D, determine the allowable load P if an overall factor of safety of 3.0 is desired. Тоp view 200 mm +180 mm - 12 mm 8 mm A В C A 20 mm P 8 mm 8 mm - DO 12 mm - Front view Side view Fig. P1.55
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