# Quiz3_2004 - First Name Last Name Student No Tutorial Section/TA MSE 101H1F Materials Science Quiz#3 Total marks for all questions 10 Marks are not

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First Name ________________ Last Name___________________ Student No__________________ November 24, 2004 Tutorial Section/TA__________________________ Page 1 of 7 MSE 101H1F Materials Science - Quiz #3 Total marks for all questions: 10 Marks are not equal for all questions – Marks are shown in left hand margin 2 1. A single crystal of a metal that has the FCC crystal structure is oriented such that a tensile stress is applied parallel to the [ ] 1 0 0 direction. If the critical resolved shear stress for this material is 0.5 MPa, calculate the magnitude of applied stress necessary to cause slip to occur on the (111) plane in the 1 0 1   direction. See Problem 8.13: This problem asks that, for a metal that has the FCC crystal structure, we compute the applied stress required to cause slip to occur on a (111) plane in the direction. In order to solve this problem it is necessary to employ Equation 8.3, but first we need to solve for the for ? and f angles for the slip system. The f is the angle between the direction of the applied stress, [100] and the normal to the (111) plane, that is, the [111] direction. The angle f may be determined using Equation 8.5 as where (for [100]) u 1 = 1, v 1 = 0, w 1 = 0, and (for [111]) u 2 = 1, v 2 = 1, w 2 = 1. Therefore, f is equal to Now, we must determine the value of ? — that is, the angle between the [100] and directions. Again using Equation 8.5

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## This note was uploaded on 06/08/2010 for the course MSE MSE101 taught by Professor Proframsayscott during the Fall '03 term at University of Toronto- Toronto.

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Quiz3_2004 - First Name Last Name Student No Tutorial Section/TA MSE 101H1F Materials Science Quiz#3 Total marks for all questions 10 Marks are not

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