At an axial load of 22 kN, a 45-mm-wide by 15-mm-thick polyimide polymerbar elongates 2.8 mm while the bar width contracts 0.25 mm. The bar is 190mm long. At the 22-kN load, the stress in the polymer bar is less than itsproportional limit.Determine(a) the modulus of elasticity.(b) Poisson's ratio.(c) the change in the bar thickness

Given : Axial load - 22Kn Width - 45 mm, Thickness - 15 mm Elongation - 2.8 mm width contraction…

At an axial load of 22 kN, a 45-mm-wide by 15-mm-thick polyimide polyme bar elongates 2.8 mm while the bar width contracts 0.25 mm. The bar is 19 mm long. At the 22-kN load, the stress in the polymer bar is less than its proportional limit.

At an axial load of 22 kN, a 45-mm-wide by 15-mm-thick polyimide polyme bar elongates 2.8 mm while the bar width contracts 0.25 mm. The bar is 19 mm long. At the 22-kN load, the stress in the polymer bar is less than its proportional limit.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter6: Introduction To Mechanical Properties

Section: Chapter Questions

Problem 6.4P

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Question

At an axial load of 22 kN, a 45-mm-wide by 15-mm-thick polyimide polymer
bar elongates 2.8 mm while the bar width contracts 0.25 mm. The bar is 190
mm long. At the 22-kN 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 thickness

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