A wood beam with cross-sectional dimensions X mm x Y mm is reinforced on its sides by steel plates 12 mm thick as shown in Figure Q5(b). The moduli of elasticity for the steel and wood are E: = 190 GPa and Ex=11 GPa, respectively. Also, the corresponding allowable stresses are o ;= 110 MPa and o, = 75 MPa. The parameter of X and Y are
A wood beam with cross-sectional dimensions X mm x Y mm is reinforced on its sides by steel plates 12 mm thick as shown in Figure Q5(b). The moduli of elasticity for the steel and wood are E: = 190 GPa and Ex=11 GPa, respectively. Also, the corresponding allowable stresses are o ;= 110 MPa and o, = 75 MPa. The parameter of X and Y are
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:12 mm
X
-Y
mm
mm
12 mm
12 mm
12 mm
(i)
(ii)
Figure Q5 (b)
Table Q5(b): Parameter of the board dimension
Student with EVEN last digits ofmatric number
Parameter
(AD20xxxZ)
Z = 0,2,4,6,8
300 mm
400 mm
mm

Transcribed Image Text:(b) A wood beam with cross-sectional dimensions X mm x Y mm is reinforced on its sides
by steel plates 12 mm thick as shown in Figure Q5(b). The moduli of elasticity for the
steel and wood are E: = 190 GPa and Ew = 11 GPa, respectively. Also, the corresponding
allowable stresses are o ;= 110 MPa and o, = 75 MPa. The parameter of X and Y are
given in Table Q5(b).
(i)
Calculate the maximum permissible bending moment Mmax When the beam is
bent about the z axis.
(ii)
Repeat part (i) if the beam is now bent about its y axis.
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