Explanation Maximum stress is calculated by, σ = 32 M π d 3 Here, M = maximum movement D = diameter of bar But M = FL Also, F = load acting = 50N L = length of bar = 20 cm = 200mm σ = 32 M π d 3 σ = 32 × 50 × 200 π ( 1.5 × 10 3 ) σ = 30.16 M P a Hence from the figure, at σ = 30.16 M P a Number of cycles to failure = 2 × 10 5 c y c l e Now the number of hours required to sustain under load is given by Time = no

Essentials Of Materials Science And Engineering

4th Edition

ISBN: 9781337385497

Author: WRIGHT, Wendelin J.

Publisher: Cengage,

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Question

Chapter 7, Problem 7.33P

Interpretation Introduction

Interpretation:

A cylindrical acetal polymer treated under vibrational load at one end of 500 vibrations per minute frequency and a load of 50 N.

The dimensions of cylindrical acetal polymer are 20 cm long and 1.5 cm in diameter.

The time required to survive before breaking needs to be determined.

Concept introduction:

Vibrational testing is the process in which material is subjected to stress under various limits set on the UTM (universal testing machine)

Expert Solution & Answer

Chapter 7 Solutions

Essentials Of Materials Science And Engineering

Ch. 7 - Prob. 7.1P Ch. 7 - Prob. 7.2P Ch. 7 - Prob. 7.3P Ch. 7 - Prob. 7.4P Ch. 7 - Prob. 7.5P Ch. 7 - Prob. 7.6P Ch. 7 - Prob. 7.7P Ch. 7 - Prob. 7.8P Ch. 7 - Prob. 7.9P Ch. 7 - Prob. 7.10P

Ch. 7 - Prob. 7.11P Ch. 7 - Prob. 7.12P Ch. 7 - Prob. 7.13P Ch. 7 - Prob. 7.14P Ch. 7 - Prob. 7.15P Ch. 7 - Prob. 7.16P Ch. 7 - Prob. 7.17P Ch. 7 - Prob. 7.18P Ch. 7 - Prob. 7.19P Ch. 7 - Prob. 7.20P Ch. 7 - Prob. 7.21P Ch. 7 - Prob. 7.22P Ch. 7 - Prob. 7.23P Ch. 7 - Prob. 7.24P Ch. 7 - Prob. 7.25P Ch. 7 - Prob. 7.26P Ch. 7 - Prob. 7.27P Ch. 7 - Prob. 7.28P Ch. 7 - Prob. 7.29P Ch. 7 - Prob. 7.30P Ch. 7 - Prob. 7.31P Ch. 7 - Prob. 7.32P Ch. 7 - Prob. 7.33P Ch. 7 - Prob. 7.34P Ch. 7 - Prob. 7.35P Ch. 7 - Prob. 7.36P Ch. 7 - Prob. 7.37P Ch. 7 - Prob. 7.38P Ch. 7 - Prob. 7.39P Ch. 7 - Prob. 7.40P Ch. 7 - Prob. 7.41P Ch. 7 - Prob. 7.42P Ch. 7 - Prob. 7.43P Ch. 7 - Prob. 7.44P Ch. 7 - Prob. 7.45P Ch. 7 - Prob. 7.46P Ch. 7 - Prob. 7.47P Ch. 7 - Prob. 7.48P Ch. 7 - Prob. 7.49P Ch. 7 - Prob. 7.50P Ch. 7 - Prob. 7.51P Ch. 7 - Prob. 7.52P Ch. 7 - Prob. 7.53P Ch. 7 - Prob. 7.54P Ch. 7 - Prob. 7.55P Ch. 7 - Prob. 7.56P Ch. 7 - Prob. 7.57P Ch. 7 - Prob. 7.58P Ch. 7 - Prob. 7.59P Ch. 7 - Prob. 7.60P Ch. 7 - Prob. 7.61P Ch. 7 - Prob. 7.62P Ch. 7 - Prob. 7.63P Ch. 7 - Prob. 7.64DP Ch. 7 - Prob. 7.65DP Ch. 7 - Prob. 7.66DP Ch. 7 - Prob. 7.67DP Ch. 7 - Prob. K7.1KP

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