Transcription of CHAPTER 1 - PROBLEM SOLUTIONS - Ju Li
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CHAPTER 1 - PROBLEM SOLUTIONS - Ju Li
CHAPTER 1 - PROBLEM SOLUTIONS . A. PROFICIENCY PROBLEMS. 1. The plot below of load vs. extension was obtained using a specimen (shown in the following figure). of an alloy remarkably similar to the aluminum-killed steel found in automotive fenders, hoods, etc. The crosshead speed, v, was inch/second. The extension was measured using a 2". extensometer as shown (G). Eight points on the plastic part of the curve have been digitized for you. Use these points to help answer the following questions. 900. 800. 700 ( , 630 ). ( , 745 ). ( , 729). 600. ( , 699) ( , ). Load, pounds 500. ( , 458). ( , 440 ). 400 ( , 405 ). 300. D = " ". 200 ". G = ". 100. Extension, inches a. Determine the following quantities. Do not neglect to include proper units in your answer.
CHAPTER 1 - PROBLEM SOLUTIONS A. PROFICIENCY PROBLEMS 1. The plot below of load vs. extension was obtained using a specimen (shown in the following figure) of an alloy remarkably similar to the aluminum-killed steel found in automotive fenders, hoods, etc. The crosshead speed, v, was 3.3x10-4 inch/second. The extension was measured using a 2"
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