Q4 A beam made of the cross section shown below is made of an elastic- plastic material for which the yield stress is 360 MPa. (a) Find the plastic moment Mp (b) The maximum elastic moment Me (c) Also determine the distribution of the residual stresses in the beam after the plastic moment Mp is applied and then released Assume bending occurs about the x axis

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Q4
A beam made of the cross section shown below is made of an elastic-
plastic material for which the yield stress is 360 MPa.
(a) Find the plastic moment Mp
(b) The maximum elastic moment Me
(c) Also determine the distribution of the residual stresses in the beam after the plastic
moment Mp is applied and then released
Assume bending occurs about the x axis
40 mm
40 mm
HF
225 mm-
40 mm
Y
+x
200 mm
Transcribed Image Text:Q4 A beam made of the cross section shown below is made of an elastic- plastic material for which the yield stress is 360 MPa. (a) Find the plastic moment Mp (b) The maximum elastic moment Me (c) Also determine the distribution of the residual stresses in the beam after the plastic moment Mp is applied and then released Assume bending occurs about the x axis 40 mm 40 mm HF 225 mm- 40 mm Y +x 200 mm
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