The polymer bar shown in the figure below has a width of b = 42 mm, a depth of d = 97 mm, and a height of h = 253 mm. At a compressive load of P = 125 kN, the bar height contracts by Ah = -2.40 mm, and the bar depth elongates by Ad = 0.40 mm. At this load, the stress in the polymer bar is less than its proportional limit. Determine: (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar width b. Rigid plate h Rigid base (a) E = i (b) v = i (c) Ab = i GPa mm b

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The polymer bar shown in the figure below has a width of b = 42 mm, a depth of d = 97 mm, and a height of h = 253 mm. At a
compressive load of P = 125 kN, the bar height contracts by Ah = -2.40 mm, and the bar depth elongates by Ad = 0.40 mm. At
this load, the stress in the polymer bar is less than its proportional limit. Determine:
(a) the modulus of elasticity.
(b) Poisson's ratio.
(c) the change in the bar width b.
Rigid
plate
h
Rigid base
(a) E =
i
(b) v =
i
(c) Ab =
i
GPa
mm
b
Transcribed Image Text:The polymer bar shown in the figure below has a width of b = 42 mm, a depth of d = 97 mm, and a height of h = 253 mm. At a compressive load of P = 125 kN, the bar height contracts by Ah = -2.40 mm, and the bar depth elongates by Ad = 0.40 mm. At this load, the stress in the polymer bar is less than its proportional limit. Determine: (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar width b. Rigid plate h Rigid base (a) E = i (b) v = i (c) Ab = i GPa mm b
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