Q3(a) A wood beam with a rectangular section is found to have the insufficient load capacity. So an engineer decides to reinforce this wood beam by using an aluminum channel section. The original wood beam has a cross section of dimensions 150 mm x 250 mm. The reinforcing aluminum channel has a uniform thickness of 6.5 mm. Other dimensions are in Figure Q3(a). If the allowable normal stresses in the wood and aluminum are 8 MPa and 38 MPa, respectively, and if their moduli of clasticity are 10 GPa and 70 GPa, respectively. What are the maximum allowable bending moments of the beam before and after the reinforcement? 150 mm- 250 mm O. 38 mm 6.5 mm 165 mm- Figure Q3(a)

Q3(a) A wood beam with a rectangular section is found to have the insufficient load capacity. So an engineer decides to reinforce this wood beam by using an aluminum channel section. The original wood beam has a cross section of dimensions 150 mm x 250 mm. The reinforcing aluminum channel has a uniform thickness of 6.5 mm. Other dimensions are in Figure Q3(a). If the allowable normal stresses in the wood and aluminum are 8 MPa and 38 MPa, respectively, and if their moduli of clasticity are 10 GPa and 70 GPa, respectively. What are the maximum allowable bending moments of the beam before and after the reinforcement? 150 mm- 250 mm O. 38 mm 6.5 mm 165 mm- Figure Q3(a)

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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Question

Q3(a) A wood beam with a rectangular section is found to have the insufficient load
capacity. So an engineer decides to reinforce this wood beam by using an
aluminum channel section. The original wood beam has a cross section of
dimensions 150 mm x 250 mm. The reinforcing aluminum channel has a uniform
thickness of 6.5 mm. Other dimensions are in Figure Q3(a). If the allowable
normal stresses in the wood and aluminum are 8 MPa and 38 MPa, respectively,
and if their moduli of clasticity are 10 GPa and 70 GPa, respectively. What are
the maximum allowable bending moments of the beam before and after the
reinforcement?
150 mm-
250 mm
38 mm
6.5 mm
165 mm-
Figure Q3(a)

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