Answered: -2b- T一4

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.43P

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Question

The structure shown in the figure consists
of a horizontal rigid bar ABCD supported by two
steel wires: one of length L and the other of length
3L/4. Both wires have cross-sectional area A and are
made of elastoplastic material with yield stress sY
and modulus of elasticity E. A vertical load P acts at
end D of the bar.
(a) Determine the yield load PY and the corresponding
yield displacement dY at point D.
(b) Determine the plastic load PP and the corresponding
displacement dY at point D when the
load just reaches the value PP.
(c) Draw a load-displacement diagram with the
load P as ordinate and the displacement dD of
point D as abscissa.

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