Rigid bar BCD is supported by a pin at C and aluminum rod (1)
Rigid bar BCD is supported by a pin at C and aluminum rod (1). A concentrated load P is applied to the lower end of the aluminum rod (2) which is attached to the rigid bar at D. The cross sectional area of each rod is A»0.20 in2 and the elastic modulus of the aluminum material is E=9200 ksi. The coefficient of thermal expansion 12.5 x 10-6/°F. After the load P is applied and the structure has been CoOLED by 25 °F, the strain gauge in rod 1 measures 1200 μe in tension. L1=54 Inches, L2=120 inches, a=31 inches, b=20 inches.
a) Find the magnitude of load P
b) Deflection of point E relative to its initial position.
Homework Answers
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α= 11.3 × 10-6/°C. The pin at C has a diameter
of 40 mm. After load P has been applied and the
temperature of the entire assembly has been increased by 10°C, the
total strain in...
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(5 pts) Rigid bar ABCD is supported by bars BE and CF and a pin at A. There is no strain in the vertical bars before P is applied. After P is applied, the normal strain in bar BE is -1100 strains (i.e., -1100 x 10-6 mm/mm) Determine: 1425 mm 200 mm 320 mm 100 mm Rigid bar 860 mm a) the normal strain in bar CF. b) the normal strain in bar CF if there a 1-mm gap in...
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