A simply supported steel beam of solid square section is to be designed to absorb shock load as shown. The beam is to be repeatedly bumped at its midpoint by a 20-lb rigid body it supports whose maximum height of drop h is about 1 in. due to vibration. Consider an as forged surface and a fatigue-strength reduction factor of 1.5. Recommend the beam’s minimum cross section required if it were made of C1020, as rolled steel. Design for indefinite life. Take N = 2 (Soderberg)
A simply supported steel beam of solid square section is to be designed to absorb shock load as shown. The beam is to be repeatedly bumped at its midpoint by a 20-lb rigid body it supports whose maximum height of drop h is about 1 in. due to vibration. Consider an as forged surface and a fatigue-strength reduction factor of 1.5. Recommend the beam’s minimum cross section required if it were made of C1020, as rolled steel. Design for indefinite life. Take N = 2 (Soderberg)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A simply supported steel beam of solid square section is to be designed to absorb shock load as shown.
The beam is to be repeatedly bumped at its midpoint by a 20-lb rigid body it supports whose maximum
height of drop h is about 1 in. due to vibration. Consider an as forged surface and a fatigue-strength
reduction factor of 1.5. Recommend the beam’s minimum cross section required if it were made of
C1020, as rolled steel. Design for indefinite life. Take N = 2 (Soderberg).
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