| 2R M M h1 h
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A rectangular beam with notches and a hole (see
figure) has dimensions h = 5.5 in., h1 = 5 in., and width
b =1.6 in. The beam is subjected to a bending moment
M =130 kip-in., and the maximum allowable bending
stress in the material (steel) is σmax = 42,000 psi.
(a) What is the smallest radius Rmin that should be
used in the notches?
(b) What is the diameter dmax of the largest hole that
should be drilled at the midheight of the beam?
Transcribed Image Text:| 2R
M
M
h1 h
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