The raw data (force vs. displacement) from the video shown below:
a. Plot displacement vs. force and strain vs. stress in separate plots. (Use a computer program like Excel or MATLAB).
b. Compute the Young's modulus of the material.
c. Determine the upper and lower yield stresses of the material.
d. What is the amount of strain that occurs with perfect plasticity?
e. What is the ultimate stress of the material?
f. What is the failure strain of the material?
g. Is it possible to plot true strain vs. true stress for this data set? Why or why not?
txt file=
disp(mm), load(N)
-0.0024917565463479572, 7.223942208462322
0.011061849787103303, 736.8421052631576
0.024987283004154585, 1726.5221878224977
0.033521226409004345, 2445.304437564497
0.03912961523663903, 2867.905056759542
0.041729821290704225, 2936.5325077399343
0.04446429816384658, 3099.0712074303387
0.06180847300510968, 2979.876160990709
0.07914231932182904, 2853.4571723426207
0.10918799722162668, 2867.905056759546
0.16673595385215229, 2867.905056759546
0.19928371682284207, 2882.352941176471
0.23935322779302695, 2907.6367389060842
0.2744288971459702, 2940.1444788441654
0.33701717375418627, 2965.428276573784
0.389597110078832, 2990.712074303405
0.4271542074535793, 3008.7719298245593
0.4722175600410039, 3026.831785345717
0.5147839918198083, 3048.5036119711035
0.5698660132153465, 3073.787409700722
0.6324542898235629, 3099.071207430337
0.690028067765449, 3117.131062951493
0.7651164412035828, 3135.1909184726483
0.845203820521228, 3149.6388028895753
0.9227787862434372, 3156.8627450980393
1.0028403442497222, 3153.2507739938037
1.0678997203551968, 3156.86274509804
1.132943603673856, 3149.6388028895744
1.185482225900325, 3146.026831785342
1.245506446290382, 3127.966976264185
1.3355401947443304, 3099.071207430336
1.4230512010782965, 3055.7275541795666
1.485551685227886, 3019.6078431372507
1.5530511752569849, 2979.8761609907124
1.6355425186623511, 2925.6965944272447
1.6930181756210676, 2875.128998968004
1.7480072402957059, 2835.3973168214616
1.8229768357015763, 2770.381836945302
1.9029299442001444, 2690.9184726522185
1.967896363584721, 2629.5149638802845
2.0253513634943463, 2564.499484004126
2.085303284212591, 2495.8720330237347
2.1327654366254634, 2441.692466460267
2.190204943748274, 2365.8410732714106
2.262620811460528, 2264.705882352941
2.3250438316760325, 2174.406604747162
2.382462681749755, 2084.1073271413807
2.4248948427094796, 2011.8679050567598
2.4623331620519666, 1946.8524251805964
2.4972642320612897, 1878.224974200204
2.527170474879734, 1795.1496388028895
2.542115849895553, 1748.1940144478813