Ch.1 Problem 1.62 Solution | Study Guide - Edubirdie

University:
Michigan State University
Course:
ERG 100 | Introduction to Engineering Design
Academic year:

2021
Views:

112

Pages:

1
Author:

Shyanne Johnson

PROBLEM 1.62 In the marine crane shown, link CD is known to have a uniform cross section of 50 × 150 mm. For the loading shown, determine the normal stress in the central portion of that link. SOLUTION Weight of loading: W = (80 Mg)(9.81 m/s 2) = 784.8 kN Free Body: Portion ABC ¦ M A = 0: FCD (15 m) − W (28 m) = 0 28 28 W = (784.8 kN) 15 15 = + 1465 kN FCD = FCD σ CD = + 1465 × 10 3N FCD = = +195.3 ×10 6Pa A (0.050 m)(0.150 m) σCD = +195.3 MPa W

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