Find the min. supportable uniformly distributed load.
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
Find the min. supportable uniformly distributed load.

Transcribed Image Text:A 6 meter long supported wooden beam of
rectangular section 10 cm x 20 cm deep is
strengthened by mild steel plates 0.5 cm x 10 cm
wide at the top and bottom fibre over the entire
length. Find the minimum supportable uniformly
distributed load considering failures in steel and
wood due to flexure. Weakening of wood due to
screws and weakening of the steel plates due to
drilled holes may be ignored
Permissible tensile stress for steel
= 156.8 N/mm²
%3D
Permissible tensile stress for wood
= 14.89 N/mm2
%3D
Young's modulus of mild steel
= 1.96 x 105 N/mm2
Young's modulus of wood
= 0.117 x 105 N/mm2
100 mm
5 mm
14.89
5 mm
ww 007
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