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A freshly manufactured glass fiber (100μm diameter) is found to break under a 40N tensile load.  A similar fiber is subjected to typical handling (causing "wear and tear").  This second fiber is found to break under a tensile load of 0.15 N Assume that the first fiber was defect free, but that the second fiber broke at the lower load due to the presence of an atomically-sharp surface crack that resulted from the handling. Calculate the length of that crack.  Your answer should be in units of microns, μ

A freshly manufactured glass fiber (100μm diameter) is found to break under a 40N tensile load.  A similar fiber is subjected to typical handling (causing "wear and tear").  This second fiber is found to break under a tensile load of 0.15 N Assume that the first fiber was defect free, but that the second fiber broke at the lower load due to the presence of an atomically-sharp surface crack that resulted from the handling. Calculate the length of that crack.  Your answer should be in units of microns, μ

Elements Of Electromagnetics
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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A freshly manufactured glass fiber (100μm diameter) is found to break under a 40N tensile load. 

A similar fiber is subjected to typical handling (causing "wear and tear").  This second fiber is found to break under a tensile load of 0.15 N

Assume that the first fiber was defect free, but that the second fiber broke at the lower load due to the presence of an atomically-sharp surface crack that resulted from the handling.

Calculate the length of that crack.  Your answer should be in units of microns, μm

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