Transcription of CHAPTER 1 - PROBLEM SOLUTIONS - Ju Li
{{id}} {{{paragraph}}}
Example: bankruptcy
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.
Page 4 Fundamentals of Metal Forming - Solution Manual Chapter 1 e. m= ln p2/p1 ln v2/v1 ln 763.4 lb 729 lb ln 3.3 x 10 –2/s 3.3 x10–4/s = ln 1.047 ln 100 = .046 4.605 = 0.010 2. Starting from the basic idea that tensile necking begins at the maximum load point, find the true
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: